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Air pollution can occur naturally or be caused by human activities. [4] Air pollution causes around 7 or 8 million deaths each year. [5] [6] It is a significant risk factor for a number of pollution-related diseases, including heart disease, stroke, chronic obstructive pulmonary disease (COPD), asthma and lung cancer.
Pollution is the introduction of contaminants into the natural environment that cause harm. [1] Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants.
Air pollution is associated with an estimated 7 million premature deaths each year. WHO guidelines recommend exposure to no more than an annual mean PM2.5 concentration of 5 micrograms per cubic ...
The income of the top 1% alone – households making more than $550,000 – was linked to 15% to 17% of this pollution. The report also identified “super-emitters.” They are almost exclusively ...
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 ...
The report. The annual State of the Air report measures air pollution in U.S. counties. This year's report, the 25th edition, utilized data from 2020-2022. Two main factors of the report center on ...
Anthropogenic air pollution has affected the United States since the beginning of the Industrial Revolution. [75] 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."
Air pollution — Atmospheric particulate matter • Biological effects of UV exposure • CFC • Environmental impact of the coal industry • Environmental impact of hydraulic fracturing • Indoor air quality • Ozone depletion • Smog • Tropospheric ozone • Volatile organic compound • Ultrafine particles