KUALA LUMPUR: Port Klang recorded a very unhealthy Air Pollutant Index (API) reading on Thursday, according to the Department of Environment (DOE).
As of 1pm, the API registered 203. The eight areas with unhealthy air quality were Bukit Rambai with API reading of 113, Banting and Kuala Selangor (162), Petaling Jaya (135), Shah Alam (132), Batu Muda (135), Cheras (123) and Putrajaya (145).
The API reading in several districts in Negri Sembilan also deteriorated to unhealthy levels due to a combination of factors including the prolonged dry spell and fires.
As of 2pm, Nilai registered the highest API reading of 165 followed by Seremban, 131 and Port Dickson at 118.
The air quality in two other areas also reached the unhealthy level, namely Bandaraya Melaka (99) and Sri Aman (96).
API readings of between 0-50 are considered good, moderate (51-100), unhealthy (101-200), very unhealthy (201-300) and dangerous (exceeding 301).