Euronews.com | An air quality index of 7 indicates “poor” air quality with elevated pollution levels that can affect health prompting recommendations to limit outdoor activity, reduce exercise, and consider indoor air purifiers or protective masks during prolonged exposure.

The Cardiology Advisor | Study findings presented at the International Stroke Conference show that spikes in ozone and PM2.5 during the 2023 Canadian wildfires were associated with increased stroke incidence, higher hemorrhagic stroke risk, and greater stroke severity in an urban underserved population.

E&E News by POLITICO | An EPA report shows that nationwide emissions of five major air pollutants declined between 2020 and 2024 under the Biden administration, even as the Trump administration moves to roll back environmental regulations and expand fossil fuel use.

Phys.org | A new study finds that extreme heat waves can drive new aerosol particle formation at temperatures up to 40°C, as intense sunlight transforms volatile organic compounds into organic acids that self-assemble into nanoparticles.

The Cool Down | A new study finds that wintertime PM2.5 pollution in the Balkans often exceeds levels seen in Beijing, contributing to thousands of premature deaths annually.

ESS Open Archive | Researchers introduce an open-access workflow that aligns climate model air pollution projections with Global Burden of Disease metrics, enabling consistent and reproducible estimates of future health impacts from ozone and particulate matter under climate change scenarios.

Earth.com | A new international study finds that the sharp rise in methane emissions during early COVID-19 lockdowns was driven mainly by a temporary drop in atmospheric hydroxyl radicals that normally break down methane, alongside wetter La Niña conditions that boosted emissions from tropical and Arctic wetlands.

PBS | The EPA is rolling back stricter mercury and toxic emission limits for coal-fired power plants a move critics say could increase hazardous pollution exposure and harm public health without lowering electricity costs.

Utah Senate | Utah officials highlight collaborative efforts between lawmakers, regulators, industry and residents that have reduced PM2.5 and addressed ozone pollution while supporting economic growth, emphasizing continued investments to improve air quality statewide.

ScienceDaily | A national study of 27.8 million older U.S. adults found that long-term exposure to fine particulate air pollution is associated with a higher risk of Alzheimer’s disease—primarily through direct effects on the brain—with stroke survivors appearing especially vulnerable.

Euronews.com | An air quality index of 7 indicates “poor” air quality with elevated pollution levels that can affect health prompting recommendations to limit outdoor activity, reduce exercise, and consider indoor air purifiers or protective masks during prolonged exposure.

The Cardiology Advisor | Study findings presented at the International Stroke Conference show that spikes in ozone and PM2.5 during the 2023 Canadian wildfires were associated with increased stroke incidence, higher hemorrhagic stroke risk, and greater stroke severity in an urban underserved population.

E&E News by POLITICO | An EPA report shows that nationwide emissions of five major air pollutants declined between 2020 and 2024 under the Biden administration, even as the Trump administration moves to roll back environmental regulations and expand fossil fuel use.

Phys.org | A new study finds that extreme heat waves can drive new aerosol particle formation at temperatures up to 40°C, as intense sunlight transforms volatile organic compounds into organic acids that self-assemble into nanoparticles.

The Cool Down | A new study finds that wintertime PM2.5 pollution in the Balkans often exceeds levels seen in Beijing, contributing to thousands of premature deaths annually.

ESS Open Archive | Researchers introduce an open-access workflow that aligns climate model air pollution projections with Global Burden of Disease metrics, enabling consistent and reproducible estimates of future health impacts from ozone and particulate matter under climate change scenarios.

Earth.com | A new international study finds that the sharp rise in methane emissions during early COVID-19 lockdowns was driven mainly by a temporary drop in atmospheric hydroxyl radicals that normally break down methane, alongside wetter La Niña conditions that boosted emissions from tropical and Arctic wetlands.

PBS | The EPA is rolling back stricter mercury and toxic emission limits for coal-fired power plants a move critics say could increase hazardous pollution exposure and harm public health without lowering electricity costs.

Utah Senate | Utah officials highlight collaborative efforts between lawmakers, regulators, industry and residents that have reduced PM2.5 and addressed ozone pollution while supporting economic growth, emphasizing continued investments to improve air quality statewide.

ScienceDaily | A national study of 27.8 million older U.S. adults found that long-term exposure to fine particulate air pollution is associated with a higher risk of Alzheimer’s disease—primarily through direct effects on the brain—with stroke survivors appearing especially vulnerable.