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An air quality index (AQI) is an indicator developed by government agencies [1] to communicate to the public how polluted the air currently is or how polluted it is forecast to become. [2][3] As air pollution levels rise, so does the AQI, along with the associated public health risk. Children, the elderly and individuals with respiratory or ...
The 2018 version of the WHO database contains results of ambient (outdoor) air pollution monitoring from almost 2700 towns and cities in 91 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] [2] [3]
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 caused an additional two million premature deaths in 2019. [1]
Metro areas with a population of more than 350,000 have to report air quality data on a daily basis, while other locales simply do so as a public service. ... The EPA likens the AQI to a weather ...
Of the 14 counties with ozone data from 2020 to 2022, 6 received an "F" grade by the ALA, and 6 of 10 counties monitored received an "F" for particulate pollution. [6] An MIT study estimated that over 450 deaths annually in Utah are due to poor air quality.
In Vermont, Bankrate data shows that people pay an average of $67 a month for a $300,000 dwelling limit, while in Nebraska, the most expensive home insurance state, people pay an average of $471 ...
Anthropogenic air pollution has affected the United States since the beginning of the Industrial Revolution. [2] 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."
e. Air pollution is the contamination of air due to the presence of substances called pollutants in the atmosphere that are harmful to the health of humans and other living beings, or cause damage to the climate or to materials. [ 1 ] It is also the contamination of the indoor or outdoor environment either by chemical, physical, or biological ...