One of 96 cities on the IQAir AirVisual "major city ranking" can top the ranking at a given time. Learn how we assess global air pollution rankings.
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In 2019, Delhi air quality was in the hazardous range for nine consecutive days, the longest spell of hazardous air quality since public records began.
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2019 California wildfires scorched over 94,000 acres. Most were quickly contained, but others continued to pose serious threats to homes and air quality.
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A court banned all fireworks during Diwali apart from “green crackers” that produce less emissions. So will India’s air quality be better during Diwali?
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Dissatisfied with the State’s quality of readings, Igor, a father living in Krasnoyarsk, Russia, decided to measure outdoor air pollution himself. Learn more.
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Thousands of schoolchildren across the world walked out of classes in a day of protest to demand action to tackle climate change. Learn more.
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