Choking on smog

Thailand faced another severe air pollution crisis early this year, as hazardous levels of fine particulate matter (PM2.5) blanketed Bangkok and much of the country from January through March.

- 

Authorities have struggled to control pollution, which is driven by traffic emissions, industrial activity, and agricultural burning.

Bangkok's air quality has steadily worsened since 2019, with transportation responsible for an estimated 60% of pollution in the capital, followed by industrial emissions and seasonal crop burning in nearby provinces.