CU Denver News | A new multinational study reveals that long-term exposure to fine particulate air pollution (PM2.5) is linked to menstrual cycle irregularities, suggesting potential disruptions to hormonal health. Researchers analyzed over 2.2 million cycles from 92,000 Clue app users, emphasizing the need for more attention to environmental impacts on women’s reproductive health.

CBS News | Smoke from Canadian wildfires has triggered an air quality alert across Minnesota through Monday evening, with residents reporting throat irritation and visible haze. Health officials urge caution, especially for vulnerable groups, and recommend N95 masks and limiting outdoor exposure during poor air quality events.

FOX 9 | Minnesota remains under an air quality alert through Wednesday due to Canadian wildfire smoke, with levels ranging from “unhealthy” in the Twin Cities to “hazardous” in the far northwest. Residents are advised to limit outdoor activities, especially those with health conditions, as smoke is expected to linger until midweek.

NBC News | Smoke from over 180 Canadian wildfires continues to degrade air quality across parts of the U.S., prompting alerts from Minnesota and Michigan to South Carolina. Officials warn of ongoing health risks and fire hazards, urging residents to limit outdoor activity and avoid spark-producing equipment.

Newsweek | Air quality alerts were issued across Michigan, Minnesota, and South Carolina due to wildfire smoke and elevated ozone levels, posing health risks to sensitive groups including children, the elderly, and those with respiratory conditions. Officials advised limiting outdoor activity, especially strenuous exercise, and taking steps to reduce indoor smoke exposure.

KSTP | Minnesota’s air quality alert has been extended due to wildfire smoke from Canada, with pollution levels reaching hazardous levels in the northwest and very unhealthy levels in central and northern regions. Residents statewide are urged to limit outdoor activity, with those in maroon and purple zones advised to stay indoors entirely due to serious health risks.

Public News Service | North Dakotans are being urged to monitor local air quality through tools like AirNow.gov as wildfire smoke from Canada increasingly affects the state earlier in the season. Officials recommend limiting outdoor exposure and sealing indoor spaces when smoke is present to protect respiratory health.

Nature | Researchers used airborne environmental DNA collected from a national air quality monitoring network to conduct the first large-scale survey of terrestrial biodiversity via metabarcoding. The study identified over 1,100 taxa and demonstrated that integrating eDNA with existing infrastructure offers a cost-effective, scalable approach to biodiversity monitoring.

Delaware Online | The Delaware City Refinery has been emitting excess sulfur dioxide for over a week due to equipment failure, prompting investigation and potential enforcement by DNREC. Despite high hourly emissions, air monitoring data shows levels remain below health standards, and officials have not mandated a shutdown.

Environmental Protection | Colorado’s Air Pollution Control Division has resumed daily ozone forecasts for the 2025 summer season, issuing alerts when pollution may exceed national standards. The program helps residents stay informed and reduce emissions through small actions like carpooling or evening refueling.

CU Denver News | A new multinational study reveals that long-term exposure to fine particulate air pollution (PM2.5) is linked to menstrual cycle irregularities, suggesting potential disruptions to hormonal health. Researchers analyzed over 2.2 million cycles from 92,000 Clue app users, emphasizing the need for more attention to environmental impacts on women’s reproductive health.

CBS News | Smoke from Canadian wildfires has triggered an air quality alert across Minnesota through Monday evening, with residents reporting throat irritation and visible haze. Health officials urge caution, especially for vulnerable groups, and recommend N95 masks and limiting outdoor exposure during poor air quality events.

FOX 9 | Minnesota remains under an air quality alert through Wednesday due to Canadian wildfire smoke, with levels ranging from “unhealthy” in the Twin Cities to “hazardous” in the far northwest. Residents are advised to limit outdoor activities, especially those with health conditions, as smoke is expected to linger until midweek.

NBC News | Smoke from over 180 Canadian wildfires continues to degrade air quality across parts of the U.S., prompting alerts from Minnesota and Michigan to South Carolina. Officials warn of ongoing health risks and fire hazards, urging residents to limit outdoor activity and avoid spark-producing equipment.

Newsweek | Air quality alerts were issued across Michigan, Minnesota, and South Carolina due to wildfire smoke and elevated ozone levels, posing health risks to sensitive groups including children, the elderly, and those with respiratory conditions. Officials advised limiting outdoor activity, especially strenuous exercise, and taking steps to reduce indoor smoke exposure.

KSTP | Minnesota’s air quality alert has been extended due to wildfire smoke from Canada, with pollution levels reaching hazardous levels in the northwest and very unhealthy levels in central and northern regions. Residents statewide are urged to limit outdoor activity, with those in maroon and purple zones advised to stay indoors entirely due to serious health risks.

Public News Service | North Dakotans are being urged to monitor local air quality through tools like AirNow.gov as wildfire smoke from Canada increasingly affects the state earlier in the season. Officials recommend limiting outdoor exposure and sealing indoor spaces when smoke is present to protect respiratory health.

Nature | Researchers used airborne environmental DNA collected from a national air quality monitoring network to conduct the first large-scale survey of terrestrial biodiversity via metabarcoding. The study identified over 1,100 taxa and demonstrated that integrating eDNA with existing infrastructure offers a cost-effective, scalable approach to biodiversity monitoring.

Delaware Online | The Delaware City Refinery has been emitting excess sulfur dioxide for over a week due to equipment failure, prompting investigation and potential enforcement by DNREC. Despite high hourly emissions, air monitoring data shows levels remain below health standards, and officials have not mandated a shutdown.

Environmental Protection | Colorado’s Air Pollution Control Division has resumed daily ozone forecasts for the 2025 summer season, issuing alerts when pollution may exceed national standards. The program helps residents stay informed and reduce emissions through small actions like carpooling or evening refueling.