ภาพบรรยากาศกรุงเทพมุมสูงที่ถูกปกคลุมไปด้วยฝุ่นขนาด 2.5 ไมครอน Published caption:: A aerial view shows Bangkok blanketed by haze. Poor air quality has become a concern in the capital again after the Pollution Control Department detected hazardous levels of fine dust particles at all five air-quality monitoring stations in Bang Na district, Wang Thong Lang district, the Rama IV area of Pathumwan district, Intarapitak in Thon Buri district, and Phaya Thai district yesterday. Pornprom Satrabhaya