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The following list of countries by air pollution sorts the countries of the world according to their average measured concentration of particulate matter in micrograms per cubic meter (μg/m 3). The World Health Organization's recommended limit is 10 micrograms per cubic meter, although there are also various national guideline values, which ...
[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. Click on the arrows next to the table's headers to have the most polluted cities ranked first.
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 ...
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In 2016, the global average temperature was already 1.1°C above pre-industrial levels. [ 15 ] According to the review of the scientific literature conducted by the Intergovernmental Panel on Climate Change (IPCC), carbon dioxide is the most important anthropogenic greenhouse gas by warming contribution. [ 16 ]
The reports provide guidelines intending to give guidelines to reduce the health effects of air pollution. [ 2 ] The guidelines stipulate that PM 2.5 should not exceed 5 μg/m 3 annual mean, or 15 μg/m 3 24-hour mean; and that PM 10 should not exceed 15 μg/m 3 annual mean, or 45 μg/m 3 24-hour mean. [ 2 ]
List of countries by air pollution; List of countries by natural disaster risk; Climate Change Performance Index (CCPI) Environmental Performance Index (EPI) Environmental Sustainability Index (ESI) Environmental Vulnerability Index (EVI) Happy Planet Index (HPI) List of countries by ecological footprint; Sustainable Society Index (SSI) The ...
Established by the United States Environmental Protection Agency (EPA) under authority of the Clean Air Act (42 U.S.C. 7401 et seq.), NAAQS is applied for outdoor air throughout the country. [2] The six criteria air pollutants (CAP), or criteria pollutants, for which limits are set in the NAAQS are ozone (O 3), atmospheric particulate matter ...