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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