Bangkok's traffic may be gridlocked, but the air quality is better than 20 years ago. The World Health Organization (WHO) calls air pollution "a public health emergency". People would probably be sick from air pollution," Mr Supat shuddered. Nearly 49,000 people died from air pollution in Thailand in 2013, a joint World Bank and University of Washington report said. If you do not include those particles in the Air Quality Index, "you cannot see a comprehensive picture", she added.

Source: Bangkok Post May 18, 2017 07:41 UTC