Haze: 30 areas across Malaysia record unhealthy air quality, including Ipoh, PJ, Shah Alam and Kuching

On September 17, data from the Malaysia Air Pollutant Index Management System (APIMS) portal revealed that 30 locations across Malaysia had unhealthy Air Pollutant Index (API) readings at 5pm. Tasek Ipoh in Perak topped the list with a reading of 188, followed by Seri Manjung, Pegoh Ipoh, and Taiping in the same state. In Sarawak, Kuching, Serian IPD, and Samarahan also reported unhealthy API readings.

Selangor had several areas with unhealthy API readings, including Johan Setia, Shah Alam, Banting, Petaling Jaya, and Klang. Kedah had one affected area, Sungai Petani, while the capital city recorded API readings of 155 in Cheras and Batu Muda, and 158 in Putrajaya. Malacca's affected areas included Bukit Rambai, Alor Gajah, and Bandaraya Melaka, while Johor had four areas with unhealthy API readings: Batu Pahat, Segamat, Tangkak, and Kluang.

Jerantut in Pahang recorded an API reading of 154, and three areas in Penang were also affected: Minden, Seberang Jaya, and Seberang Perai. Nilai and Seremban in Negeri Sembilan, as well as Kuala Terengganu in Terengganu, also reported unhealthy API readings. An API reading of zero to 50 signifies good air quality, 51 to 100 indicates moderate air quality, 101 to 200 denotes unhealthy air quality, 201 to 300 reflects very unhealthy air quality, and 301 and above suggests hazardous air quality.