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2. List of most-polluted cities by particulate matter concentration

   en.wikipedia.org/wiki/List_of_most-polluted...

   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 ...

3. Air quality index - Wikipedia

   en.wikipedia.org/wiki/Air_quality_index

   The most commonly used air quality index in the UK is the Daily Air Quality Index recommended by the Committee on the Medical Effects of Air Pollutants (COMEAP). [39] This index has ten points, which are further grouped into four bands: low, moderate, high and very high. Each of the bands comes with advice for at-risk groups and the general ...

4. Air Pollution Index - Wikipedia

   en.wikipedia.org/wiki/Air_Pollution_Index

   The Air Pollution Index (API; Malay: Indeks Pencemaran Udara) is a simple and generalized way to describe the air quality, which is used in Malaysia. It is calculated from several sets of air pollution data and was formerly used in mainland China and Hong Kong .

5. Air pollution in the United States - Wikipedia

   en.wikipedia.org/wiki/Air_pollution_in_the...

   According to a 2024 report: "39% of people living in America—131.2 million people—still live in places with failing grades for unhealthy levels of ozone or particle pollution." Analyzing data from 2020 to 2022, the American Lung Association found the number of people living in counties with a failing grade for ozone declined, this year by 2 ...

6. Environmental Performance Index - Wikipedia

   en.wikipedia.org/.../Environmental_Performance_Index

   Global map of countries by Environmental Performance Index, 2024 [1] The Environmental Performance Index (EPI) is a method of quantifying and numerically marking the environmental performance of a state's policies, highlightning the degradation of the planet's life-supporting systems on which humanity depends. A world economy that continues to ...

7. 26 charts that helped explain 2024 in politics

   www.aol.com/26-charts-helped-explain-2024...

   The year 2024 was one for the history books, and 538's visual journalists and reporters were hard at work explaining the data behind the news with visualizations and interactives. From 538’s ...