A new tool developed by Greenpeace Southeast Asia and IQAir AirVisual reveals the impact of air pollution in 28 cities around the world. See it now.
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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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The United Nations Environment Programme (UNEP), together with UN-Habitat and IQAir, a Swiss air quality technology company, today launched the world’s largest air quality data platform. Learn more.
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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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