bad air pollution in city. pm 2.5 dust in bangkok or center city, capital city are covered by heavy smog, misty morning and

city polluted bangkok smog dust allergy thailand air smoke building cityscape pollution urban landscape downtown skyline business environment tower toxic asia fog skyscraper landmark sky architecture health unhealthy problem hazard mist dirty background outdoor dangerous district factory global office town aerial asian siam hazardous modern sunset bad city 2 5 center capital covered heavy misty morning sunrise place risk cancer