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Air pollution is one of the world's largest health and environmental problems. It develops in two contexts: indoor (household) air pollution and outdoor air pollution. In this topic page, we look at the aggregate picture of air pollution – both indoor and outdoor.
Air pollution data portal. From smog hanging over cities to smoke inside the home, air pollution poses a major threat to health across the globe. Almost all of the global population (99%) are exposed to air pollution levels that put them at increased risk for diseases including heart disease, stroke, chronic obstructive pulmonary disease ...
Global population exposed to unsafe air pollution levels 2022, by risk. Number of people exposed to different levels of air pollution risk worldwide as of 2022 (in millions)
WHO's air quality database compiles data on ground measurements of annual mean concentrations of particulate matter of a diameter equal to or smaller than 10 μm (PM10) or equal to or smaller than 2.5 μm (PM2.5) which aim at representing an average for the city or town as a whole, rather than for individual stations. The database currently hosts 4300 human settlements in 108 countries and is ...
Last updated in March 2024. Contents. Outdoor air pollution is one of the world's largest health and environmental problems – one that tends to worsen for countries as they industrialize and transition from low to middle incomes. The Global Burden of Disease study estimates that millions of deaths are attributed to outdoor air pollution. 1.
Air pollution kills an estimated seven million people worldwide every year. WHO data shows that 9 out of 10 people breathe air containing high levels of pollutants. WHO is working with countries to monitor air pollution and improve air quality.
7 de sept. de 2021 · The UNEP Pollution Action Note displays the global state of air pollution, major sources, the impact on human health, and national efforts to tackle this critical issue. Published 7 Sep 2021 Updated 6 Sep 2023.
