Singapore haze worsens as Timor-Leste suspends in-person classes
Singapore’s western-region PM2.5 reading reached 288 on Oct. 14, while Timor-Leste suspended in-person classes in covered schools for three days.
PM2.5
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Penn State warns campus communities as wildfire smoke drives unhealthy air across Pennsylvania
Penn State urged students, faculty, staff and visitors to monitor air quality after wildfire smoke from Canada and Minnesota produced unhealthy readings in parts of Pennsylvania.
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Baton Rouge-area air monitors mostly report good conditions, with moderate PM2.5 at one site
Louisiana environmental monitoring data dated July 27 show good readings at several Baton Rouge-area sites, while French Settlement recorded a moderate PM2.5 Air Quality Index of 53.
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Louisville air monitors show mostly good conditions, with moderate PM2.5 at French Settlement
Louisville Metro air-quality data dated July 27 showed mostly good ozone and particle conditions, while the French Settlement monitor recorded a moderate PM2.5 AQI of 53.
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Worcester included in Massachusetts fine-particle air monitoring network as July alert issued
MassDEP issued a fine-particulate air-quality alert on July 17, 2026, while the state’s 2026 monitoring plan lists a Worcester station on Summer Street.
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Wildfire smoke drove Detroit-area air quality to hazardous levels in July episode
Smoke from Canadian and northern Minnesota wildfires pushed a station-specific AQI reading to 650 at Detroit-Southwest on July 16, while an air-quality alert remained in effect the following day.