In 2019, the population-weighted concentration of ozone pollution in Thailand amounted to **** parts per billion. The World Health Organization standards recommends not exceeding ** parts per billion over * hours.
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Health Effects Institute. (August 23, 2021). Ambient ozone pollution based on population-weighted concentration in Thailand from 1990 and 2019 (in parts per billion) [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 25, 2026, from /statistics/935042/thailand-population-weighted-ambient-ozone-pollution/
Health Effects Institute. "Ambient ozone pollution based on population-weighted concentration in Thailand from 1990 and 2019 (in parts per billion)." Chart. August 23, 2021. ÌÇÐÄÆÆ½â°æ. Accessed July 25, 2026. /statistics/935042/thailand-population-weighted-ambient-ozone-pollution/
Health Effects Institute. (2021). Ambient ozone pollution based on population-weighted concentration in Thailand from 1990 and 2019 (in parts per billion). ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 25, 2026. /statistics/935042/thailand-population-weighted-ambient-ozone-pollution/
Health Effects Institute. "Ambient Ozone Pollution Based on Population-weighted Concentration in Thailand from 1990 and 2019 (in Parts per Billion)." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 23 Aug 2021, /statistics/935042/thailand-population-weighted-ambient-ozone-pollution/
Health Effects Institute, Ambient ozone pollution based on population-weighted concentration in Thailand from 1990 and 2019 (in parts per billion) ÌÇÐÄÆÆ½â°æ, /statistics/935042/thailand-population-weighted-ambient-ozone-pollution/ (last visited July 25, 2026)
Ambient ozone pollution based on population-weighted concentration in Thailand from 1990 and 2019 (in parts per billion) [Graph], Health Effects Institute, August 23, 2021. [Online]. Available: /statistics/935042/thailand-population-weighted-ambient-ozone-pollution/