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Thailand faces persistent air pollution stemming from agricultural burning, industrial emissions, and transportation. [3] Thailand's national standards for PM2.5 air quality were revised in 2022 and 2023, to adopt the World Health Organization (WHO) Interim Target 3 (IT-3) of 37.5 μg/m 3 and 15 μg/m 3 for 24 hour and annual measures, respectively.
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 ...
In the first six months of 2017, Greenpeace Thailand monitored PM2.5 in 14 provinces, as they have done since 2015, and found that every station recorded levels higher than the WHO recommendation of less than 10 milligrams per cubic meter of air. PM2.5 refers to airborne particulates smaller than 2.5 microns, particles so small that they can be ...
Below is a list of 526 cities sorted by their annual mean concentration of PM2.5 (μg/m 3) in 2022. [1] [2] By default the least polluted cities which have fewest particulates in the air come first.
During extended periods of poor air quality in January 2025, DOPA directed district chiefs to prevent and address PM2.5 pollution, including establishing centers to monitor wildfire and haze monitoring, public awareness campaigns, and restrictions on burning land.
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.
Air quality of Thailand is getting worse in 2023, which is described as a "post-COVID back-to-normal situation". In addition to the capital Bangkok, air quality in Chiang Mai, a popular tourist destination, is also deteriorating. Chiang Mai was listed as the most polluted city in a live ranking by a Swiss air quality company on 27 March 2023.
Air quality technology company IQAir reports that Hanoi, Vietnam, has the worst air pollution of any city on Earth, with levels of hazardous small particles, known as PM2.5, measured at 266 micrograms per cubic metre. International relations. Egypt–Syria relations