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Lansing State Journal

What does the air quality index mean? How to read the AQI to navigate wildfire smoke

Canadian wildfire smoke is affecting air quality in parts of Michigan. The EPA's air quality index (AQI) uses a color-coded scale to inform the public about air quality and associated health risks.

Delhi-NCR air quality: AQI in ‘very poor’ zone at 341; GRAP-4 curbs lifted

On Wednesday, Delhi-NCR was engulfed by a dense layer of smog, as the Air Quality Index soared to 341, marking it as 'very ...

Delhi Reimposes GRAP 4 Amid 'Severe' AQI And Dense Fog

Delhi enforces GRAP 4 restrictions as AQI surpasses 400. Severe air quality, dense fog, and travel advisories impact daily ...

Delhi AQI: First rains of 2026 bring relief from toxic air, AQI improves to 'satisfactory' levels at IGI, Pusa Road

Delhi AQI Today: Air quality improved to ‘satisfactory’ levels at IGI, Pusa, Lodhi Road and Mandir Marg after first rainfall of 2026. The Friday morning rains brought relief from toxic air as AQI ...
El Adelantado de Segovia

Air quality warnings issued in Portola and parts of Oregon as PM2.5 levels reach unhealthy ranges

Poor air quality has led to advisories recommending residents stay indoors in some areas of California. Official measurements ...

Delhi pollution update: GRAP 3 removed as AQI levels go down, check list of restrictions

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Delhi records most polluted January day in 2 years as AQI 440 takes over city

Delhi's air quality hit a severe AQI of 440, marking the most polluted January in two years, due to stagnant winds and rising ...