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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 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 ...
For instance, some places like Africa and South America lack air pollution reporting tools, so their pollution levels are probably not reflected in this list. Moreover, many cities from a certain country are featured in the list may only mean that they have large and wide air pollution monitoring networks, which may or may not be an indicator ...
The report is based on information from more than 30,000 air quality monitors in 134 countries and territories, according to IQAir. The company analyzed the average level of pollution throughout ...
Poor air quality impacts more than your lungs. Despite decades of progress, a 2024 American Lung Association report found that 11.7 million more people are breathing unhealthy air compared to last ...
Only 0.001 per cent of the world’s population breathes air considered acceptable, says study. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...
But trying to gauge how bad the air is by looking at these numbers can be confusing. To help people understand air quality levels more easily, many countries have adopted an air quality index or AQI — a numerical scale where larger numbers mean worse air. They are also often assigned different colors to show whether the air is clean or not.
In developing and poor countries, [22] traditional biomass burning is the major source of air pollutants. [23] [24] ... Air quality indexes (AQIs) ...