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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]
The USA TODAY analysis revealed that Los Angeles and four other California counties, home to about 15 million people, had the most days in 2023 with air quality deemed unhealthy for sensitive ...
This list contains the top 500 cities by PM2.5 annual mean concentration measurement as documented by the World Health Organization covering the period from 2010 to 2022. 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.
People living in the Midwest and Northeast were warned of a worsening air quality index throughout the week due to smoke from the Canadian wildfires
All data are valid for the year 2022 and are taken from the Air Quality Life Index (AQLI) of the University of Chicago. ... United States: 6.91 −0.19 161
Air quality is reported by the U.S. Air Quality Index, as well as the Washington State Department of Ecology. County numbers are an average based on several cities’ most recently reported AQI ...
Air quality has a direct impact on health, and the biggest culprit is fine particulate matter (PM 2.5). We looked at the annual concentration of PM 2.5 in each city to gauge general air quality ...
These monitors help ensure air quality standards are met and also provide important data for studying pollution trends. The information shows significant improvements in air quality over recent decades. From 1980 to 2019, levels of carbon monoxide, lead, and sulfur dioxide dropped by over 80%, and particulate matter also decreased substantially.