Shutdowns and drastic reductions in economic activity have resulted in major impacts on global air quality. Read our air quality report and learn what you can do to improve air quality even as economic activity picks up again.
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The U.S. Embassy in China used air quality monitoring to change the course of health and air pollution in China – but that progress is under threat. See why.
New air quality data for 2019, compiled by IQAir, highlights the impact of climate change and urbanization on global PM2.5 air pollution. Learn more.
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What level of air pollution is safe? How does one measure pollution? Here’s how to reduce your air pollution exposure and how it can improve your quality of life.
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The IQAir AirVisual COVID-19 Air Quality Report shows that air pollution levels in 10 major global cities have dropped 9 to 60 percent during government-mandated lockdowns due to the global COVID-19 pandemic. Learn more.
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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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