Air pollution
Traffic is one of the most important causes of air pollution in
Bangkok. Bangkok traffic was said to create high level of dust
particles, and Carbon Monoxide. BMTA buses, trucks and smaller
transport vans were frequently stopped for on-the-road checking.
The rapid growth of Bangkok has severely stained its facilities and
led to a number of serious problems. The city now has over a million
registered motor vehicles and because of the limited road surface,
traffic congestion is heavy in central areas. Many spots have been
declared that air quality were seriously sub-standard. There has been
continuing monitoring of air quality at several places with recorded
high level traffic jam.