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The January 2024 version of the WHO database contains results of ambient (outdoor) air pollution monitoring from almost 5,390 towns and cities in 63 countries. Air quality in the database is represented by the annual mean concentration of particulate matter (PM10 and PM2.5, i.e. particles smaller than 10 or 2.5 micrometers, respectively). [1 ...
Air pollution has been a consistent and ongoing nuisance in Phoenix — along with five other cities in Arizona, it’s tied for the worst air quality in the nation. According to research group ...
With that background, here are 24/7's 10 cities with the worst air quality: 1) Beijing, China (tie) ... "Air pollution is a huge problem here, it leads to so many diseases -- respiratory diseases ...
Western cities top the list of most polluted. Globally, more than 6.5 million people die each year due to air pollution. Exposure to polluted air can inflame cells and increase the risk of chronic ...
During June 2023, due to early season wildfires in Canada, cities like New York and Washington D.C. suffered from dangerous levels of air pollution. It was the worst regional air quality in decades for the Northeast. [6]
Air pollution can affect nearly every organ and system of the body, negatively affecting nature and humans alike. Air pollution is a particularly big problem in emerging and developing countries, where global environmental standards often cannot be met. The data in this list refers only to outdoor air quality and not indoor air quality, which ...
All but one of the 100 cities with the world’s worst air pollution last year were in Asia, ... Air pollution from fossil fuels is killing 5.1 million people worldwide every year, ...
Below is a list of 526 cities sorted by their annual mean concentration of PM2.5 (μg/m 3) in 2022. [1] [2] By default the least polluted cities which have fewest particulates in the air come first. Click on the arrows next to the table's headers to have the most polluted cities ranked first. Please note that constraints exist in this type of ...