Thailand ranks 36th among the countries with the highest concentration of PM 2.5 dust in the world out of 134 in the World Air Quality Report 2023, produced by IQAir, a Swiss air quality organization. The average concentration of PM 2.5 dust in Thailand is 23.3 micrograms per cubic meter, compared to 79.9 micrograms per cubic meter Bangladesh, 1,73.7 micrograms per cubic meter, second Pakistan, and 54.4 micrograms per cubic meter India.
The report says that the average concentration of PM 2.5 dust in Thailand increased by 28% in 2023 year after year. It increased from 18.1 micrograms per cubic meter in 2022 to 23.3 micrograms per cubic meter in 2023.
PM2.5 dust concentrations in 2023 have returned to the same level as before COVID-19. and is likely to break the 2019 record of 24.3 micrograms per cubic metre.
When considering Bangkok alone PM 2.5 dust concentration is found to have increased by more than 20%, reaching 21.7 micrograms per cubic meter in 2023.
The report says that February-April This is the period with the highest pollution in 2023, with the monthly average PM 2.5 dust numbers for 24 districts in Chiang Mai province at 53.4-106.4 micrograms per cubic meter.
while Bang Sao Thong District of Samut Prakan Province It is the only city in Thailand with air quality that meets the PM 2.5 dust standard of no more than 5 micrograms per cubic meter. from the World Health Organization (WHO), with the concentration of PM 2.5 dust reduced by 20% because the concentration of PM 2.5 dust decreased between June and December in 2023 compared to 2022.
The factors that cause Thailand to face PM 2.5 dust problems include the burning of agricultural land, forest fires, and industrial pollution. and emissions from vehicles All of which affect air quality and health.
In other countries Interesting to find Indonesia came 14th with an average PM 2.5 dust concentration of 37.1 micrograms per cubic meter, China came 19th with an average PM 2.5 dust concentration of 32.5 micrograms per cubic meter. Vietnam came 22nd with an average PM 2.5 dust concentration of 29.6 micrograms per cubic meter, with Myanmar ranked 25th with an average PM2.5 dust concentration of 28.2 micrograms per cubic meter. Cambodia ranked 37th with an average PM 2.5 dust concentration of 22.8 micrograms per cubic meter, and the United States ranked 102nd with an average PM 2.5 dust concentration of 9.1 micrograms per cubic meter.
In addition, the IQAir report found that only seven countries have air quality that meets World Health Organization standards: Australia, Estonia, Finland, Grenada, Iceland, Mauritius and New Zealand.
IQAir collects this air quality data from more than 30,000 observation stations around the world.
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