Air Quality Headlines Around the World

Animal Legal Defense Fund | 15 October 2025 | The Animal Legal Defense Fund and partner groups appealed a federal court ruling that upheld an EPA rule exempting factory farms from reporting hazardous air emissions like ammonia and hydrogen sulfide, arguing the exemption violates the Emergency Planning and Community Right-to-Know Act and leaves nearby communities unprotected from toxic pollution.

90.5 WESA | 15 October 2025 | Carnegie Mellon University’s CREATE Lab and Climate TRACE launched a global map visualizing particulate pollution from over 9,500 industrial sources, linking emissions to nearly 9 million annual deaths and supporting environmental justice advocacy worldwide.

Cornell Chronicle – Cornell University | 14 October 2025 | Cornell University and the Environmental Defense Fund are studying how dust and wildfire air pollution has evolved since 1850 to better predict future impacts on health, mortality, and economies, with a focus on Latin America.

JD Supra | 14 October 2025 | The Tennessee Air Pollution Control Board fined Southern Ionics Inc. $3,000 after determining its Calhoun facility exceeded sulfur dioxide emission limits and failed to report hydrogen chloride emissions in violation of its air permit.

The Economic Times | 13 October 2025 | Delhi’s air quality remained poor on Sunday with an AQI of 168, as PM2.5 reached 74 µg/m³ and PM10 hit 159 µg/m³, prompting health precautions despite clear skies and comfortable temperatures.

Signal Akron | 13 October 2025 | At a community meeting about Akron’s new $85 million North High School, residents requested features like green space, natural light, better air quality, and athletic facilities, while architects outlined a timeline aiming to complete construction by March 2029 and pledged to prioritize comfort, sustainability, and community input.

Dawn | 12 October 2025 | The fear of smog has already started lingering upon us. We are once again bracing ourselves to choke in our own neglect. Are we doomed to suffer every year, through climate change, mismanagement, broken promises, or is it just bad luck?

Panorama.am | 12 October 2025 | Yerevan’s air quality index reached 85.9 for PM2.5 on Saturday, classified as “moderate”, with Mayor Tigran Avinyan noting it’s acceptable for most residents but could affect those with health conditions.

Pittsburgh’s Public Source | 11 October 2025 | Carnegie Mellon’s CREATE Lab expanded its Plume Pittsburgh pollution-tracking platform into Climate TRACE, a global tool unveiled by Al Gore that visualizes emissions from nearly 10,000 industrial sites worldwide, helping expose “super-emitters” and empower communities through transparent, justice-focused air quality data.

ScienceDirect.com | 11 October 2025 | Using an extended quantile g-computation model with spatial Bayesian analysis, researchers found that higher mixtures of PM2.5, NO₂, SO₂, O₃, and CO were linked to reduced birth weight in 21 Georgia counties, highlighting localized pollution impacts on infant health.

ScienceDirect.com | 10 October 2025 | Imported solar panels displaced 305 TWh of fossil power and prevented 178 million tons of CO₂ and nearly 600 premature deaths in the U.S. from 2014–2022, showing that global solar supply chains yield major health and climate benefits that offset about half their cost.

Time Magazine | 10 October 2025 | Heat pump startup Jetson is cutting installation costs by using remote project assessments and launching its own monitored unit, Jetson Air, which tracks air quality and filter status—while robotics firm Figure AI prepares to deploy its humanoid Figure 03, designed to handle household tasks and improve through large-scale data training.

ScienceDirect.com | 9 October 2025 | Using machine learning, researchers mapped PM2.5 hotspots in New York City from 2010–2019 and showed that congestion pricing and traffic restrictions most effectively and equitably reduce urban air pollution.

The Bay State Banner | 9 October 2025 | Boston awarded $1.12 million through its 2025 Community Clean Air Grants to six community projects in environmental-justice neighborhoods, supporting efforts in schools and along transit corridors to monitor and reduce pollution, educate residents, and build partnerships that advance local air-quality improvements and health equity.

NC DEQ – NC.gov | 8 October 2025 | North Carolina’s Division of Air Quality is taking public comments through Nov. 19 and holding hearings Nov. 13 (Mooresville) and Nov. 18 (Lexington) on draft permits to add new gas turbines and generators at Transco compressor Stations 150 and 155 with modeling indicating no exceedance of toxic ambient levels.

Climate Policy Initiative | 8 October 2025 | The 2025 State of Global Air Quality Funding report warns that despite major donor cuts and the closure of USAID, countries have committed to halving air pollution’s health impacts by 2040, emphasizing that integrated air quality and climate policies could save over 2 million lives annually and boost global GDP by up to $2.4 trillion.

ACS Publications – American Chemical Society | 7 October 2025 | Researchers found that the choice of central metal in π-extended porphyrin-based heterojunction sensors strongly affects performance, with nickel-centered devices showing ultrafast and highly sensitive ammonia detection, while zinc-centered ones excel in precise humidity monitoring.

Nature | 7 October 2025 | A Northern Ireland study found that long-term exposure to PM2.5 levels above 9.6 µg/m³ increased lung cancer risk by 37%, with a stronger effect in women, highlighting that even low pollution levels can significantly impact health.

KROC News | 6 October 2025 | Mayo Clinic received federal funding from the Advanced Research Projects Agency for Health to develop AI-driven biosensors and smart filtration systems that monitor and improve indoor air quality in hospital emergency departments across its Minnesota, Florida, and Arizona campuses.

Space | 6 October 2025 | A University of Memphis study found that Elon Musk’s xAI data center in southwest Memphis caused only a slight, 1% increase in fine particulate pollution, confirming that while the facility’s turbines minimally affected local air quality, long-standing industrial pollution remains a major health concern for nearby residents.

ScienceDirect.com | 5 October 2025 | The study introduces FCGformer, a deep learning model that combines frequency-domain convolution and graph-based transformers to better capture complex global and local spatiotemporal patterns in air pollution, achieving higher forecasting accuracy than existing models.

The Earthshot Prize | 5 October 2025 | Bogotá’s comprehensive clean air plan, combining greener transport, expanded cycling, urban greening, and low-emission zones, has cut air pollution by 24% since 2018 and positioned the city as a global model for sustainable urban transformation.

Climate and Clean Air Coalition (CCAC) | 4 October 2025 | The Climate and Clean Air Coalition released updated AQMx guidance to help countries and cities strengthen air quality management through step-by-step actions, expanded monitoring, public engagement, and stronger legal frameworks on the path toward sustained clean air.

LAist | 4 October 2025 | An explosion and fire at Chevron’s El Segundo refinery raised air quality concerns as officials reported elevated but quickly subsiding VOC levels, while experts urged stronger monitoring to detect potential toxic emissions like benzene.

Nature | 3 October 2025 | A new review highlights that while low-cost air quality sensors are expanding access to pollution monitoring worldwide, their accuracy, calibration, and lack of standardized protocols remain major challenges, especially in mobile, drone, and citizen science applications.

The Guardian | 3 October 2025 | After nearly 30 years of air quality policies, Santiago, Chile saw its third best year for reduced pollution episodes in 2025, with hours of high exposure down 66% over the last decade, though challenges remain.

NC DEQ – NC.gov | 2 October 2025 | North Carolina’s Division of Air Quality awarded $1.14 million in DERA-funded grants to replace or retrofit 20 older diesel vehicles and equipment (including some with electric and CNG alternatives), projected to cut 3,483 tons of CO₂, 57 tons of NOx, and 7,700 pounds of PM2.5 over their lifetimes.

World Health Organization (WHO) | 2 October 2025 | A new WHO policy summary emphasizes that land use planning plays a critical role in shaping exposure to air pollution and its health impacts, urging integrated policies that connect planning, regulation, and enforcement to reduce pollution and improve public health worldwide.

Armenia signed a $1.7 million grant agreement with Japan to modernize its air quality monitoring stations, improve data quality, and strengthen environmental forecasting.

Envirotech Online | 30 September 2025 | Airvoice, a global air quality technology company founded in 2021, will showcase its AI-driven real-time monitoring and management solutions for buildings and cities at CEM 2025.

WBZ NewsRadio 1030 – iHeart | 30 September 2025 | Boston awarded over $1.1 million in Community Clean Air Grants to six organizations for projects including air quality monitoring, education campaigns, and pollution mitigation to improve public health and reduce exposure across city neighborhoods.

The Boulder Reporting Lab | 29 September 2025 | Colorado health officials rejected Xcel Energy’s initial coal ash cleanup plan at the Valmont Power Station, citing inadequate protections against toxic dust and groundwater contamination, and ordered a stronger strategy before the decade-long, $60–70 million project can begin.

The Guardian | 29 September 2025 | Latino communities across the U.S. are installing local air quality sensors to track harmful pollution, fill data gaps, and advocate for stronger protections as federal regulations are rolled back.

KAWC | 28 September 2025 | Gadsden Elementary School District #32 has launched the Air Quality Flag Program to help students and families track daily pollution levels and take precautions, especially for children with respiratory conditions.

American Journal of Managed Care | 28 September 2025 | New research presented at the European Respiratory Society Congress 2025 suggests that a diet high in fruits may help protect women’s lung function from the harmful effects of air pollution, though reducing pollution remains the most important priority.

Providence Business News | 27 September 2025 | PACE Organization of Rhode Island reports that air quality alerts now cause senior visit cancellations to double to nearly 30%, as vulnerable participants face heightened health risks.

Wyoming Public Radio | 27 September 2025 | Wyoming’s Department of Environmental Quality has stationed a mobile air monitoring unit in Wright for a year to track pollutants after the county received a failing air quality grade from the American Lung Association.

SBU News – Stony Brook University | 26 September 2025 | The GOTHAAM airborne mission, the largest of its kind over New York City, used NSF/NCAR’s C-130 aircraft to study how urban, forest, ocean, and wildfire emissions interact to form smog and pollutants, aiming to generate a high-resolution baseline of atmospheric chemistry to inform public health and climate research.

California Air Resources Board – CA.gov | 26 September 2025 | The California Air Resources Board adopted its 2025–2030 Five-Year Strategic Research Plan, prioritizing health, air quality, climate, mobile sources, and sustainable communities research to guide science-driven policymaking amid federal regulatory rollbacks.

The Washington Post | 25 September 2025 | A study of nearly 30,000 schoolchildren in Tianjin, China found that long-term exposure to fine particulate matter and nitrogen dioxide increases the risk of myopia, making air quality a modifiable factor in protecting children’s eyesight.

Stockholm Environment Institute | 25 September 2025 | A joint study in Dar es Salaam found PM2.5 and PM10 levels far above WHO limits, while nearly half of South Africa’s monitoring stations were offline in 2025, underscoring Africa’s urgent need for stronger air quality monitoring infrastructure.

Nature | 24 September 2025 | A study in Northern Sweden found no significant link between low-level air pollution and telomere length overall, though inconclusive hints of longer telomeres among individuals later diagnosed with dementia highlight the need for further research on pollution’s cellular impacts.

UNECE | 24 September 2025 | Experts under the UNECE Air Convention are developing scenarios and new monitoring tools to guide the Gothenburg Protocol revision, aiming to cut air pollution-related health and ecosystem impacts by 50% by 2040 compared to 2015 levels.

Frontiers | 23 September 2025 | A large-scale study in China finds that worsening air pollution significantly reduces residents’ participation in fitness activities, with impacts varying across gender, age, education, and household status.

Yale Climate Connections | 23 September 2025 | As federal air pollution regulations are rolled back, Moms Clean Air Force is mobilizing parents to push for stronger state and local policies to protect children’s health and fight climate change.

Farmonaut | 22 September 2025 | Mining in Arkansas continues to drive the state’s economy in 2025, but both gold extraction and strip mining cause severe environmental harm, degrading air, water, soil, and biodiversity, unless countered by sustainable practices, reclamation, and new monitoring tools like satellite-based systems.

The Realty Today | 22 September 2025 | Smart homes are increasingly using circadian lighting and air quality monitors to align light and air with human biology, improving sleep, mood, productivity, and long-term health through responsive, wellness-focused design.

Planet Detroit | 21 September 2025 | An EPA engineer testified that Michigan’s EES Coke Battery has violated the Clean Air Act by emitting over 3,000 tons of sulfur dioxide annually without required desulfurization controls, which could have cut emissions by 95%, exposing the facility to more than $300 million in potential penalties.

KOMO News | 21 September 2025 | Wildfire smoke from the Bear Gulch Fire has pushed PM2.5 pollution in Mason and Thurston Counties to unhealthy levels, prompting an air quality alert and health warnings through Saturday night.

Stockholm Environment Institute | 20 September 2025 | Colorado adopted its first health-based standards for five toxic air pollutants, setting strict cancer risk levels but weaker non-cancer protections after industry pushback, with emission limits to follow in 2026.

KLCC | 20 September 2025 | Despite smoky conditions in Eugene on Thursday, air quality only reached the “moderate” range, with officials attributing the haze to distant wildfires and noting levels should improve as winds shift north.

ScienceDirect.com | 19 September 2025 | Microplastics accumulate in aquatic systems through cross-compartment flux, where poor waste management and even bio-based plastics drive persistence and toxicity, highlighting the urgent need for standardized detection methods and integrated remediation strategies.

Daily Bruin | 19 September 2025 | UCLA researchers launched a community air quality monitoring network in Pacific Palisades after the wildfire to track harmful particles from reconstruction and provide residents with real-time, accessible data and alerts.

The Colorado Sun | 18 September 2025 | The northern Front Range saw only 23 ozone violation days in summer 2025, down from 41 in 2024 and a record 67 in 2021, thanks largely to favorable weather, though researchers continue refining models to guide long-term emission reduction policies.

TribLIVE.com | 18 September 2025 | At a packed public hearing, residents questioned state regulators over health risks from emissions at a proposed 4.5-gigawatt natural gas plant in Homer City, while officials said projected pollution levels remain below concern thresholds.

CBS News | 17 September 2025 | Airline crews report more than three toxic fume events a day on U.S. flights, most often on Airbus A320s, raising health concerns despite industry assurances that cabin air meets safety standards.

BBC | 17 September 2025 | A new study finds that Delhi’s severe air pollution is forming damaging “black crusts” on the Red Fort’s sandstone walls, threatening its carvings and historic architecture without urgent conservation measures.

ScienceDirect.com | 16 September 2025 | Exposure to particulate matter and endocrine-disrupting chemicals may worsen cardiovascular, bone, and menopausal symptoms in midlife women, highlighting the need for targeted air quality monitoring and healthcare strategies.

Eumetsat | 16 September 2025 | Europe’s new 3MI satellite instrument has delivered its first images, showcasing unprecedented ability to monitor atmospheric particles for improved weather forecasts, air quality tracking, and climate monitoring.

scsuntimes.com | 15 September 2025 | The Delaware City Refinery illegally emitted hundreds of tons of sulfur dioxide and other pollutants over 18 days in May and June, exceeding its annual permit limit and violating seven environmental laws and conditions.

Lookout Santa Cruz | 15 September 2025 | A Monterey County judge upheld permits for toxic fumigants near schools despite air monitor data showing exposures above safety limits, rejecting claims that regulators failed to consider safer alternatives or cumulative impacts of pesticide use.

Center for Biological Diversity | 14 September 2025 | California lawmakers passed Senate Bill 237, allowing up to 20,000 new oil and gas wells in Kern County without environmental review, a move critics warn will worsen pollution, climate impacts, and public health while benefiting Big Oil.

ABC News – The Walt Disney Company | 14 September 2025 | California lawmakers are set to vote on extending Gov. Gavin Newsom’s cap-and-trade program through 2045, rebranded as “cap and invest,” to fund climate initiatives and stabilize energy costs, though critics argue it lacks strong protections for vulnerable communities and could raise living expenses.

Science | 13 September 2025 | A Science study shows that heat from western U.S. wildfires reduces fine particle pollution in the East by altering weather patterns, preventing about 1,200 premature deaths and $3.3 billion in losses otherwise overlooked.

Yale E360 | 13 September 2025 | A new Science study finds that extreme western U.S. wildfires can improve East Coast air quality by altering weather patterns. Intense heat from the fires disrupts west-to-east airflow, pulling in moist Atlantic winds that suppress smoke spread and increase rainfall, which washes pollutants from the air.

Chicago Sun-Times | 12 September 2025 | Chicago has completed installation of 277 advanced air pollution sensors to track PM2.5 and nitrogen dioxide, creating the largest city-led monitoring network in the U.S. and providing public neighborhood-level data by early 2026.

Worcester Business Journal | 12 September 2025 | Massachusetts lawmakers are considering bills to expand the state’s air quality monitoring network by installing new sensors in pollution hotspots, tracking ultrafine particles and black carbon, and requiring a 75% pollution reduction in those areas by 2035, with advocates stressing urgent protections for children and environmental justice communities.

ScienceDirect.com | 12 September 2025 | A study using a mixed-frequency VAR model finds that AI’s impact on U.S. carbon emissions follows an increase–decrease–rebound pattern, highlighting both its potential and risks for air quality and calling for integrated policies to maximize environmental benefits.

Phys.org | 11 September 2025 | Nottingham Trent University research shows that London’s narrow, tall-building “urban canyon” streets trap particulate pollution at dangerously high spikes, highlighting the need for greener design, AI-driven traffic management, and stricter emission controls to protect pedestrians and cyclists.

Fox 11 | 11 September 2025 | Wisconsin’s DNR has launched an upgraded, user-friendly real-time air quality map, with prominent advisories, a news box, streamlined navigation, and an “Orange or Above” AQI filter, to help residents stay safer during ozone and wildfire smoke events.

News-Medical.net | 10 September 2025 | A University of Chicago review underscores that particulate air pollution is a major, modifiable driver of respiratory disease causing asthma, COPD, infections, fibrosis, and lung cancer through oxidative stress, inflammation, and mitochondrial injury, highlighting the urgent need for stronger air quality standards and interventions.

SnowBrains | 10 September 2025 | The lightning-sparked Garnet Fire has scorched nearly 55,000 acres in California’s Sierra National Forest, pushing air quality in Mammoth Lakes and Yosemite into hazardous levels as thousands of firefighters battle the fast-growing blaze threatening ancient sequoias.

The BMJ | 10 September 2025 | With record heat intensifying worldwide, doctors warn that combined exposure to extreme temperatures and air pollution is a growing health emergency, stressing the need for integrated medical guidance, protective infrastructure, and stronger political action to cut fossil fuel emissions.

POLITICO Pro | 9 September 2025 | The EPA is moving to weaken regional haze rules designed to curb industrial emissions and restore visibility in national parks, drawing legal challenges from environmental groups as officials frame the program as a burden on energy costs.

University of California, Merced | 9 September 2025 | UC Merced’s Professor Xuan Zhang has received a $621,000 NSF CAREER Award to study how changing pollution levels alter the chemistry of peroxy radicals, with implications for air quality, climate models, and community education.

Central Oregon Fire Info | 9 September 2025 | Despite recent rain, Central Oregon remains at high wildfire risk after 76 fire incidents this month, prompting officials to maintain Stage 1 restrictions and urge the public to follow fire safety rules and report smoke immediately.

ScienceDirect.com | 8 September 2025 | A new study using survey data in Beijing shows that outdoor air pollution exposure varies sharply by daily activities—highest during work and commuting—and is shaped by health, education, and social status, highlighting the need for policies addressing both activity patterns and inequality.

European Public Health Alliance | 8 September 2025 | The EU Healthy Air Coalition warns that air pollution drives chronic disease and billions in economic costs, urging policymakers to accelerate emissions cuts, set binding methane targets, end fossil fuel subsidies, and curb biomass burning.

UNEP | 7 September 2025 | Guatemala, with UNEP’s support, is developing its first air quality regulation to set standards, build a monitoring network, and strengthen emissions controls, marking a major step toward cleaner air ahead of the International Day of Clean Air for Blue Skies 2025.

WFIE | 7 September 2025 | A chemical fire in Newburgh prompted precautionary shelter-in-place advisories in parts of Daviess and Henderson counties, but officials lifted the orders after air quality readings showed no ongoing danger.

Al Jazeera | 6 September 2025 | The UN’s World Meteorological Organization warns that climate change–driven wildfires are releasing a “witches’ brew” of pollutants that degrade air quality across continents, urging stronger global policies to protect health, ecosystems, and economies.

The Seattle Times | 6 September 2025 | Wildfire smoke has pushed air quality in parts of Washington to unhealthy and hazardous levels, prompting national parks to close trails, campgrounds, and roads at Mount Rainier, Olympic, and North Cascades.

springer.com | 5 September 2025 | A new study introduces an enhanced temporal attention-based LSTM model that achieves 97.5% accuracy in forecasting PM2.5 levels in Karnataka, offering a powerful tool for early air quality warnings and public health protection.

RFI | 5 September 2025 | The World Meteorological Organization’s latest Air Quality and Climate Bulletin warns that worsening wildfires, fog, and pollution hotspots show how climate change and air quality are inseparably linked, while examples from China prove that strong policies can deliver dramatic improvements.

The Guardian | 5 September 2025 | New research published in Science shows that long-term exposure to fine particulate air pollution (PM2.5) can trigger toxic protein clumps linked to Lewy body dementia, highlighting clean air policies as a crucial tool for brain health.

JD Supra | 4 September 2025 | Arkansas has submitted its 2025–2026 Ambient Air Monitoring Network Plan to the EPA, outlining statewide air quality surveillance sites, pollutant measurements, and proposed network changes to ensure compliance with federal clean air standards.

Envirotech Online | 4 September 2025 | The 4th CEM India conference on air quality and emissions monitoring, set for 10–12 March 2026 in Delhi, has opened its call for papers, inviting experts and industry professionals to present case studies and innovations by 17 October 2025.

Limerick.ie | 4 September 2025 | Limerick City and County Council has launched a real-time public dashboard displaying air quality and noise data from 29 monitoring stations, linking environmental insights to public health and Active Travel routes ahead of Clean Air for Blue Skies Day 2025.

IOP Science | 4 September 2025 | A study of the Sensirion SPS30 low-cost PM2.5 sensor finds it can reliably track urban air quality patterns and hotspots, though accuracy declines at high humidity, highlighting the need for RH-based corrections in citizen monitoring campaigns.

JCI | 3 September 2025 | A comprehensive review finds that particulate matter air pollution is a leading global health threat, causing millions of premature deaths and driving respiratory diseases such as asthma, COPD, fibrosis, pneumonia, ARDS, and lung cancer, with no safe threshold of exposure.

WGBH | 3 September 2025 | This week’s edition of The Deep Dive explores smog and air quality, from wildfire smoke and deadly historical smog events to Hollywood depictions, while offering expert talks, practical health tips, and a reminder to find fresh air escapes.

ScienceDirect.com | 3 September 2025 | A new medical review warns that climate change is already driving major health impacts through air pollution, extreme heat, and microplastics, urging physicians to integrate climate advocacy, education, and sustainable practices into clinical care.

Asian Development Bank | 2 September 2025 | A new analysis warns that air pollution costs over $8 trillion globally and remains the second leading cause of premature death, but highlights that practical measures like sustainable transport, renewable energy, and better waste and crop management can deliver major health and economic benefits in Asia and the Pacific.

Green Alliance | 2 September 2025 | A new briefing warns that methane, already a powerful greenhouse gas, is also driving dangerous ozone pollution in the UK, calling for a 30% cut in emissions and binding ozone targets to safeguard health and food security.

GV Wire | 1 September 2025 | California lawmakers quietly killed “Leno’s Law,” a bill to exempt classic cars from smog checks, after environmental groups and regulators warned it would undermine air quality goals and cost the state millions.

ScienceDirect.com | 1 September 2025 | Researchers developed an Adaptive Hypergraph-based Convolution Network with Dual Spatiotemporal Attention (AHCN-DA) that significantly improves PM2.5 forecasting accuracy by dynamically modeling complex spatial and temporal pollution interactions.

Family Handyman | 31 August 2025 | A UCLA study finds that electric vehicle fast-charging stations emit unexpectedly high levels of fine particulate matter, raising local air quality concerns linked to charger cooling systems.

RTE | 31 August 2025 | As worsening wildfires and heat drive U.S. air pollution higher, experts warn that sweeping regulatory rollbacks and reduced monitoring under the Trump administration threaten to undo decades of clean-air progress and deepen environmental injustices.

PubMed | 30 August 2025 | Researchers have developed GEE-MEGAN, a satellite-driven, cloud-native model that improves fine-scale estimates of biogenic volatile organic compound emissions, revealing up to 25-fold higher urban levels and sharper accuracy in human-impacted ecosystems.

AZoCleantech | 30 August 2025 | A new industry eBook from Thermo Fisher Scientific highlights cutting-edge advances in clean technology—from renewable hydrogen and carbon capture to EV trends and sustainable materials—positioning innovation as key to building a greener future.

The New Indian Express | 29 August 2025 | Air pollution now cuts the average Indian’s life expectancy by 3.5 years, surpassing the toll of malnutrition and unsafe water, with residents of Delhi-NCR facing losses of more than eight years due to extreme PM2.5 levels, according to new University of Chicago data.

Insurance Journal | 29 August 2025 | Canada’s unprecedented 2023 wildfire season drove particulate pollution to levels not seen in over a decade across North America, erasing years of clean-air progress and underscoring how fossil fuel–driven climate change is amplifying health risks worldwide.

Surfrider Foundation | 29 August 2025 | A new UCSD and SDSU study finds that sewage-driven hydrogen sulfide emissions in the Tijuana River Valley have created dangerous nighttime air pollution levels in South San Diego, posing severe health risks for nearby communities until emergency water diversions reduced exposures by 95%.

Georgia State University News | 28 August 2025 | A new Nature Communications study shows that droughts in Latin America force a shift from hydropower to fossil fuel plants, driving spikes in PM₂.₅ pollution that cause up to 10,600 premature deaths annually—costs expected to rise sharply without clean energy storage and targeted plant retirements.

C&EN – American Chemical Society | 28 August 2025 | Scientists warn that current Air Quality Index (AQI) metrics can underestimate risks after wildfires in urban areas, since hazardous gases and toxic dust from burned materials are not included—highlighting the need to expand monitoring beyond the six regulated pollutants.

Carnegie Mellon University | 28 August 2025 | Carnegie Mellon University researchers have developed a polymer-coated MXene sensor that lasts over twice as long and more accurately detects harmful formaldehyde indoors, offering a low-cost tool to improve indoor air quality and health.

Georgia Today | 27 August 2025 | Georgia’s National Environment Agency reports that desert dust drifting from the northeast has raised PM10 and PM2.5 levels in Eastern Georgia since late July, prompting continued monitoring and public health advisories.

CBS News | 27 August 2025 | A lightning-sparked Everglades wildfire that merged into a 48,000-acre blaze in western Broward County has been fully contained after a week of firefighting, with smoke impacts easing as air quality returned to safe levels.

Stockholm Environment Institute | 27 August 2025 | A new Science Advances study finds oil and gas air pollution causes over 91,000 premature U.S. deaths annually, with disproportionate impacts on marginalized communities and heavy burdens in states like California, Texas, New York, Pennsylvania, and New Jersey.

Taylor & Francis Online | 27 August 2025 | A study of 1.66 million dining transactions in Beijing found that higher air pollution reduces in-person dining spending and increases food delivery use, especially among women and graduate students, revealing hidden economic costs of pollution beyond health impacts.

NC DEQ – NC.gov | 27 August 2025 | North Carolina has marked ten consecutive years of meeting all federal air quality standards, a milestone credited to strong policies, cleaner energy, and emission reductions that have delivered major health and economic benefits statewide.

Meetings Coverage and Press Releases – the United Nations | 26 August 2025 | UN Secretary-General António Guterres marked the International Day of Clean Air for Blue Skies by urging bold global action to cut fossil fuels and pollution, stressing that clean air is achievable through renewable energy, stronger policies, and international cooperation.

Envirotech Online | 26 August 2025 | QuantAQ has unveiled the MODULAIR-UFP, a portable long-term outdoor sensor that precisely measures ultrafine particles using a water-based CPC method, providing real-time data to support research, regulation, and community air quality monitoring.

NBC Bay Area | 26 August 2025 | Smoke from the 6,800-acre Pickett Fire is keeping skies hazy and has triggered an extended air quality advisory for Napa, Solano, and Sonoma counties, with officials urging residents to limit smoke exposure and stay indoors.

ISEP | 25 August 2025 | An EU report shows that harmful air pollution levels remain widespread across European cities, with up to 30% of urban residents exposed above legal limits, prompting officials to admit missed targets and call for stronger enforcement despite pushback over costs.

BMC Public Health – BioMed Central | 25 August 2025 | A nationwide study in Thailand found that short-term exposure to black carbon significantly increases hospitalizations for pediatric asthma highlighting the urgent need for stronger air quality controls and cleaner fuel policies.

Earth.Org | 25 August 2025 | A new study in Science Advances finds that air pollution from the full oil and gas lifecycle causes over 91,000 premature deaths annually in the U.S., with disproportionate impacts on communities of color, underscoring the industry’s massive health burden alongside its role in driving climate change.

Newsweek | 25 August 2025 | The National Weather Service issued air quality alerts across Texas and several western states, with ozone pollution prompting an action day in Dallas-Fort Worth and wildfire smoke driving warnings in Colorado, Wyoming, Idaho, Oregon, and Arizona, posing health risks for vulnerable groups.

tennews.in | 24 August 2025 | Chennai is set to install 75 IoT-based air quality sensors across the city, expanding its network from just 18, to deliver real-time pollution data, strengthen public health management, and boost climate resilience.

Environmental Protection Agency (EPA) | 24 August 2025 | A fire at Smitty’s facility in Roseland, Louisiana has prompted a one-mile evacuation and ongoing EPA and LDEQ monitoring, though air tests so far show no hazardous levels and water sampling is underway to assess potential impacts.

American Lung Association | 23 August 2025 | Poor ventilation, mold, and pollutants make many college dorms unhealthy environments, but simple steps like regular cleaning, limiting smoke and scented products, and using a HEPA or carbon-filter air purifier can significantly improve indoor air quality for students.

The Guardian | 23 August 2025 | Scientists warn that booming satellite mega-constellations and rocket launches are releasing unprecedented pollutants into the upper atmosphere, posing up to 500 times greater warming impact than aviation and threatening ozone recovery, spurring calls for a new global regime to regulate space industry emissions.

ScienceDirect.com | 22 August 2025 | A case-control study in China found that prolonged indoor time significantly increases lung cancer risk, highlighting strong interactions between exposure and genetic susceptibility and underscoring urgent urban-rural health disparities.

ABC News | 22 August 2025 | New research estimates traffic-related air pollution causes more than 1,800 premature deaths in Australia each year and highlights the urgent need to cut vehicle emissions through electric transport, public transit, and stronger pollution policies.

The Guardian | 22 August 2025 | Scientists warn that unchecked rocket and satellite launches are releasing unprecedented pollution into the upper atmosphere, intensifying climate warming and threatening ozone recovery, prompting calls for a new global regime to regulate the fast-growing space industry.

CBS News | 21 August 2025 | Smoke from two uncontrolled Everglades wildfires, including the 20,000-acre Mile Marker 39 blaze, is degrading air quality across Broward County and parts of South Florida, prompting health alerts and visibility warnings though no properties are currently threatened.

Nature | 21 August 2025 | Air pollution remains a major global health threat, and with climate change intensifying its impacts, experts argue that only integrated, context-specific strategies across national, community, and individual levels can effectively reduce risks and improve public health.

Environmental Health News | 21 August 2025 | A fatal explosion at U.S. Steel’s Clairton Coke Works has spurred emergency air monitoring and renewed concern over the plant’s long history of pollution, highlighting gaps in protections as federal fenceline monitoring rules remain delayed.

CNN | 21 August 2025 | The Trump administration is cutting instruments and satellites from NOAA’s next-generation GeoXO program, dropping planned air quality and ocean monitoring tools, to lower costs and narrow the agency’s focus to weather forecasting, a move critics warn will weaken U.S. climate data, disaster preparedness, and global leadership in Earth observation.

Farmonaut | 20 August 2025 | Underground gold mines are adopting smart, modular, and energy-efficient ventilation systems—integrating IoT, automation, digital twins, and green power—to improve safety, cut energy costs by up to 40%, and meet rising sustainability and regulatory demands.

The Vallejo Sun | 20 August 2025 | The Bay Area Air Quality Management District ordered Vallejo’s Crown Hill Materials to shut down its larger concrete batch plant for operating without a permit, following years of dust complaints from neighbors and growing concerns over health and environmental impacts.

Colorado Politics | 20 August 2025 | Former Colorado lawmakers argue that the state’s new Regulation 31 unfairly forces small rural landfills to install costly methane capture systems despite their minimal emissions, while exempting state-run facilities, a move they say will drive up local costs, increase illegal dumping, and threaten rural waste infrastructure.

Food Safety Magazine | 20 August 2025 | Airborne bioaerosols and dust play a major role in food facility cross-contamination, and monitoring them provides critical insights for preventing recontamination and improving contamination control strategies.

Cascadia Daily News | 19 August 2025 | A new study finds that Whatcom County ranks fourth in the U.S. for the number of cattle animal feeding operations, with 137 facilities that raise fine particle pollution and disproportionately impact vulnerable populations, sparking ongoing debates over health risks, farm practices, and stricter permitting.

Environmental Health News | 19 August 2025 | The Trump-era EPA canceled a $1 million Louisville air monitoring grant focused on predominantly Black neighborhoods near the Rubbertown industrial corridor, a move critics say undermines vital environmental justice research linking toxic emissions to cancer and asthma disparities.

Frontiers | 19 August 2025 | A Beijing study of over 16,000 hospital admissions found that short-term exposure to PM2.5 and NO₂ was significantly associated with increased fracture-related hospitalizations, particularly among younger patients and men, suggesting air pollution may contribute to elevated fracture risk and related societal burdens.

SBU News – Stony Brook University | 19 August 2025 | At Stony Brook University Hospital, undergraduate Amy Chen is leading an ozone garden project, part of NASA’s National Ozone Garden Network, that uses bio-indicator plants and AI to detect and visualize the harmful effects of ground-level ozone on both agriculture and human health.

ABC30 | 19 August 2025 | California’s Valley Air District has paused its $500 million tractor replacement program, which has cut farm emissions by 30% since 1998 and replaced 14,000 old machines, after funds ran low, though officials hope for renewed state support to continue reducing NOx and particulate pollution.

Pittsburgh Post-Gazette | 18 August 2025 | Workers manipulating a gas valve during routine maintenance appear to have triggered a pressure buildup and deadly explosion at the century-old Clairton Coke Works, raising fresh concerns about safety amid U.S. Steel’s aging infrastructure and recent acquisition by Nippon Steel.

BIC Magazine | 18 August 2025 | Air quality in Texas City has returned to safe levels after a Valero facility upset released sulfur dioxide, briefly closing nearby roads but posing no ongoing threat to the public.

PBS | 17 August 2025 | The Trump administration’s proposal to revoke the EPA’s 2009 greenhouse gas finding could dismantle key climate protections and, experts warn, expose millions, especially children, to greater health risks from worsening pollution, heat, and natural disasters.

AZFamily | 17 August 2025 | Arizona has set a new record with 58 consecutive days of healthy ozone levels, though forecasters warn rising heat and monsoon conditions could soon push pollution back up.

Los Angeles Times | 16 August 2025 | A new report finds that dust from the Salton Sea’s expanding shoreline contributes less than 1% of particulate pollution in the Coachella and Imperial valleys, leading researchers to recommend shifting focus toward improving indoor air quality, such as providing air filters and weatherizing homes and schools, to more effectively protect public health

Inside Climate News | 16 August 2025 | Chicago is racing to install 277 high‑quality air pollution sensors citywide by the end of summer, creating what could become the largest network of its kind in the U.S., to better inform public health planning and address chronic air quality disparities in its most affected neighborhoods.

Hendrix College | 15 August 2025 | Hendrix College’s 2025 LEAP program brought together 18 students from diverse disciplines for hands-on training in air and water quality analysis, environmental justice, and GIS mapping to address disparities in Little Rock.

The Oaklandside | 15 August 2025 | Argent Materials has agreed to drop its appeal over a denied expansion permit and install three years of fenceline air quality monitoring at its East Oakland facilities in a settlement with the Bay Area Air Quality Management District resolving multiple air quality violations.

Open Access Government | 15 August 2025 | The EU has launched its Copernicus Sentinel-5A satellite to provide high-resolution global data on air pollutants and greenhouse gases, bolstering Europe’s capabilities in atmospheric monitoring and environmental policymaking.

ScienceDirect.com | 14 August 2025 | A new study finds that China’s 2023 Full Electrification of Public Sector Vehicles policy in 15 pilot cities reduced urban AQI by 3.7%, with stronger improvements in earlier pilot and southern cities, plus positive spillover effects on neighboring areas.

mann+hummel | 14 August 2025 | Indoor air quality in the EU is often overlooked despite pollutant levels averaging two to five times higher indoors than outdoors, prompting MANN+HUMMEL to highlight major indoor pollution sources and offer advanced filtration solutions for homes and commercial spaces to protect health, comfort, and productivity.

Newsweek | 14 August 2025 | Air quality alerts across Texas, Minnesota, Connecticut, Colorado, and Washington on Wednesday warn of unhealthy ozone and particulate levels, driven by wildfire smoke and hot weather, prompting officials to urge reduced driving, outdoor burning, and other pollution-producing activities.

ESS Open Archive | 14 August 2025 | Researchers have developed SIRANet, a deep learning emulator of the SIRANE pollution model that delivers rapid, fine-scale (25m) air quality simulations across France’s Grand Est region, significantly reducing costs and computation time while maintaining high accuracy for forecasting and scenario analysis.

ScienceDirect.com | 13 August 2025 | Research using household and city-level data in China finds that higher air pollution significantly increases commercial insurance purchases, driven by greater perceived health risks and higher spending on protection and medical care, with the effect strongest among financially literate households, those in parenting or retirement stages, and those with limited medical access.

Technology Networks | 13 August 2025 | A study of the January 2025 Los Angeles wildfires finds that combining federal monitors, low-cost sensors, and satellite data gives a more complete picture of wildfire smoke impacts, helping the public make safer, real-time decisions about air quality.

BBC | 13 August 2025 | London has issued a high air pollution alert for Tuesday as hot weather and strong sunshine are expected to push ozone levels to unhealthy highs, posing risks to vulnerable residents.

Envirotech Online | 12 August 2025 | A new study finds that chemicals from vehicle tyre wear can severely hinder the growth of marine diatoms, threatening coastal food webs and highlighting an overlooked source of pollution in waterways worldwide.

KQED | 12 August 2025 | More than a decade after the 2012 Chevron refinery fire, Richmond residents are using California’s AB 617 program to push for community-driven pollution reduction, though advocates warn its lack of enforcement power threatens its promise of cleaner air.

Newsweek | 12 August 2025 | Multiple U.S. states issued air quality alerts due to wildfire smoke and elevated ozone levels, with officials warning of potentially harmful health effects—especially for vulnerable groups.

Governor.ny.gov | 11 August 2025 | New York officials are urging residents to prepare for several days of extreme heat beginning Sunday, with ‘feels-like’ temperatures in the upper 90s, an ozone advisory for the NYC Metro area, and coordinated state agency efforts to protect public health and safety.

ScienceDirect.com | 11 August 2025 | Researchers used satellite data and machine learning to map nitrogen dioxide, sulfur dioxide, and carbon monoxide levels around schools in Vilnius, Lithuania, revealing that over a third are near major roads and exposed to elevated multi-pollutant air pollution despite limited ground monitoring.

ACS Publications – American Chemical Society | 11 August 2025 | A U.S. Government Accountability Office report outlines the benefits, challenges, and policy options for using lower-cost air quality sensors, highlighting their potential to expand monitoring while stressing the need for better performance standards, guidance, and data quality.

The Cool Down | 10 August 2025 | A new international study reveals that aged desert dust can absorb pollutants and trigger chemical reactions that form harmful secondary organic aerosols, reshaping scientists’ understanding of air pollution sources and impacts.

WIRED | 10 August 2025 | Personal air quality monitors are becoming essential tools for detecting hyperlocal pollution, filling gaps in government monitoring, and empowering communities to respond to health threats from particulate matter and other airborne contaminants.

Illinois.gov | 8 August 2025 | At the 2025 Illinois State Fair, the Illinois EPA’s “Together for Healthier Air!” exhibit will educate visitors of all ages about air quality through interactive games, clean energy displays, and informative resources on ozone, particle pollution, and wildfire smoke.

NPR | 8 August 2025 | Wildfire smoke from Canada is blanketing the Midwest and Northeast U.S., pushing air quality to unhealthy levels and posing serious health risks, especially from fine particles that can inflame lungs and affect the heart, even when the smoke isn’t visible or smells strong.

NBC News | 7 August 2025 | A new study found that using HEPA air purifiers in homes near busy roads reduced systolic blood pressure by nearly 3 points in adults with slightly elevated levels, suggesting a simple way to lower cardiovascular risk from traffic-related air pollution.

ABC News – The Walt Disney Company | 7 August 2025 | Smoke from over 700 Canadian wildfires is triggering air quality alerts across 10 U.S. states, with officials warning of prolonged haze and health risks for sensitive groups in the Northeast.

WCSC | 6 August 2025 | South Carolina upgraded its North Charleston air quality station with new remote-access calibration tools, enhancing monitoring of sulfur and nitrogen dioxide to ensure compliance with EPA clean air standards.

ScienceDirect.com | 6 August 2025 | A study comparing five methods for imputing missing PM2.5 data in Seoul found that Positive Matrix Factorization (PMF) outperformed machine learning and statistical approaches while also revealing spatial pollution patterns across the city.

ANTARA News | 5 August 2025 | Indonesia’s Environment Ministry now requires all industrial zones to install real-time air and emissions monitoring systems in response to worsening air quality in the Greater Jakarta area, including Tangerang.

NBC News | 5 August 2025 | Smoke from nearly 200 out-of-control Canadian wildfires is blanketing much of the Upper Midwest and Northeast, prompting widespread air quality alerts across 14 U.S. states as fine particulate pollution reaches unhealthy levels and threatens public health.

Syracuse.com | 4 August 2025 | New York’s Department of Environmental Conservation has issued a statewide air quality health advisory for Sunday due to Canadian wildfire smoke, warning of elevated PM2.5 levels and urging sensitive groups to limit outdoor activity.

Times Observer | 4 August 2025 | The Pennsylvania DEP has issued a Code Orange Air Quality Action Day for Monday across northern counties due to Canadian wildfire smoke, warning sensitive groups to limit outdoor activity and urging residents to help reduce PM2.5 pollution.

South China Morning Post | 3 August 2025 | Efforts to reduce air pollution in East Asia have improved public health but may have unintentionally accelerated global warming by eliminating aerosols that previously helped cool the Earth, according to a new climate study.

Cureus | 3 August 2025 | Air pollution may significantly disrupt gut microbiota composition, contributing to long-term impacts on respiratory, neurological, cardiovascular, and metabolic health through mechanisms involving the gut-lung and gut-brain axes, according to a scoping review of 158 studies.

FOX4KC.com | 2 August 2025 | Wildfire smoke from Canada has pushed air quality in Kansas City and much of eastern Kansas into the “unhealthy” range, prompting alerts and health advisories for vulnerable groups through Saturday.

CBS News | 2 August 2025 | Minnesota faces one of its longest air quality alerts on record as Canadian wildfire smoke continues to push AQI levels into unhealthy territory, with Minneapolis ranking among the most polluted major cities globally despite cooler, pleasant summer weather.

NASA Earthdata | 1 August 2025 | NASA and ESA have released near real-time air quality data from the TROPOMI satellite via LANCE, offering rapid insights into pollutants like NO₂, CO, and aerosols to support smoke tracking, volcanic hazard forecasts, and weather prediction following the phase-out of NASA’s Aura satellite.

Facilities Dive | 1 August 2025 | A new GPS Air survey finds that odors, dust, and stuffiness influence public decisions about indoor spaces more than virus concerns, highlighting the growing demand for visible indoor air quality monitoring and certifications to build trust and business advantage.

Mint | 1 August 2025 | Canadian wildfire smoke is triggering air quality alerts across multiple U.S. states, with Wisconsin, Minnesota, Michigan, and Connecticut all experiencing PM2.5 levels ranging from “Unhealthy for Sensitive Groups” to “Very Unhealthy,” prompting health warnings and calls to limit outdoor activity.

Yale Climate Connections | 31 July 2025 | In the emerging Pyrocene era of extreme wildfire activity, smoke now regularly blankets North America, and while new forecasting tools offer detailed insights, predicting wildfire smoke remains difficult.

Public Health Insider | 31 July 2025 | King County has launched multilingual videos and graphics to raise awareness about indoor air pollution offering practical tips to improve air quality at home, especially for vulnerable groups like those with asthma, pregnant individuals, and residents near high-pollution areas.

The Express Tribune | 30 July 2025 | Punjab is rapidly expanding its air quality monitoring network from just 3 to 100 stations, with 60 already installed and real-time data soon available to the public via IQAir-linked dashboards—part of a broader push that includes AI-driven industrial inspections and fog cannon trials to combat pollution.

Star-Courier News | 30 July 2025 | Air Alliance Houston has launched a real-time, user-friendly air quality dashboard integrating over 60 community monitors, enabling residents to easily check neighborhood air conditions and make informed decisions about outdoor activity.

Nature | 30 July 2025 | A proposed classification framework aims to improve the transparency and trustworthiness of air quality sensor data by distinguishing independent sensor measurements from heavily processed outputs, encouraging manufacturers, researchers, and standards bodies to adopt clearer definitions that promote robust, traceable, and reliable sensor systems for diverse applications.

Think Global Health | 29 July 2025 | A pioneering emissions trading scheme (ETS) in Surat, India, reduced industrial particulate pollution by up to 30%, proving that market-based approaches can outperform traditional regulation—offering a cost-effective, scalable model for cleaner air without hindering economic growth in developing nations.

Phys.org | 29 July 2025 | Canada’s 2025 wildfire season is once again sending hazardous smoke across North America, but a new satellite-based system using NASA’s TEMPO and NOAA’s GOES-R now enables 3D tracking of smoke plume height—helping scientists distinguish between high-altitude smoke and ground-level pollution to better assess health risks and improve air quality alerts.

ScienceDirect.com | 28 July 2025 | A deep neural network model accurately predicted PM2.5 levels in Seoul, with SHAP and Vanilla Gradient analysis revealing ammonium (NH₄⁺) and nitrate (NO₃⁻) as dominant contributors—especially during high pollution events—highlighting the role of secondary formation and demonstrating the value of dual explainable AI methods for model interpretation.

Post Bulletin | 28 July 2025 | Rochester’s Air Quality Alliance has installed 19 monitors—with more coming—to better track local pollution, aiming to fill data gaps, inform public health, and support future policy as wildfire smoke and urban development raise air quality concerns across the region.

The Conversation | 27 July 2025 | A new satellite method using NASA’s TEMPO and NOAA’s GOES-R data now allows scientists to track wildfire smoke in 3D, helping distinguish high-altitude plumes from dangerous ground-level pollution—offering more precise air quality forecasts as wildfire risks and health impacts rise across North America.

NBC10 Philadelphia | 27 July 2025 | Wildfire smoke from Canada pushed air pollution in the Philadelphia region to Code Red levels on July 26, 2025, prompting health warnings and disruptions, though overnight rain helped improve conditions by Sunday morning.

ScienceDirect.com | 26 July 2025 | A new hybrid AQI forecasting framework—STL-TimesNet-iTransformer-CPO—uses STL decomposition, TimesNet for long/seasonal patterns, an improved Transformer for residuals, and CPO for auto hyperparameter tuning, consistently outperforming state-of-the-art baselines in single- and multi-step predictions across extensive tests.

Kirkland & Ellis LLP | 26 July 2025 | President Trump’s One Big Beautiful Bill Act significantly reshapes U.S. environmental policy by rescinding billions in unspent Inflation Reduction Act funds for air pollution, climate justice, and greenhouse gas reduction, while introducing a pay-to-expedite NEPA review system that accelerates project approvals but weakens oversight.

CBC | 25 July 2025 | Scientists warn that wildfires in Manitoba may be releasing toxic metals long stored in peat-rich soils contaminated by historical mining, raising concerns about the health risks of wildfire smoke and the urgent need for expanded air quality monitoring and research.

The Guardian | 25 July 2025 | A yearlong study of nearly 500 UK classrooms found that most indoor air pollution comes from outside, especially on high-smog days, and that closing windows doesn’t help—only outdoor air quality improvements and filtration can meaningfully reduce exposure for students.

NPR | 25 July 2025 | The Trump administration is seeking to repeal the EPA’s 2009 endangerment finding that underpins U.S. climate regulations, a move critics say prioritizes fossil fuel interests over science and public health while setting the stage for a long legal battle.

Appalachian Voices | 24 July 2025 | Residents of Institute, West Virginia — a historically Black community long exposed to industrial pollution from nearby chemical plants — are turning to grassroots air monitoring networks and environmental advocacy to fight for accountability, public health, and environmental justice amid continued resistance from industry and lawmakers.

Newsroom | UCLA | 24 July 2025 | UCLA researchers have launched a new air quality monitoring network across West Los Angeles to track both fine and coarse pollutants stirred up by wildfire recovery and reconstruction, offering real-time data to help protect residents and workers.

ScienceDirect.com | 23 July 2025 | A study in Delhi found that indoor air pollution, especially ultrafine particle concentrations, significantly increases during festival activities like fireworks and cooking, posing heightened health risks due to toxic particles ranging from 10 to 1000 nanometers in size.

Los Angeles Times | 23 July 2025 | UCLA researchers have deployed a new network of real-time air pollution monitors across northwest Los Angeles County to track fine and coarse particulate matter from wildfire recovery and construction, aiming to provide residents with hyperlocal data to make informed health decisions.

The Conversation | 23 July 2025 | A study found that natural gas pipeline leaks, including small and undocumented ones, significantly contribute to regional air pollution and health risks by increasing fine particulate matter (PM2.5), underscoring the need for stricter leak prevention and faster response to protect both the climate and public health.