JOHOR and Sarawak accounted for several of the country’s worst air quality readings this morning, with 20 monitoring stations nationwide recording unhealthy levels and Pasir Gudang topping the list at 180.
The latest data from the Malaysian Air Pollutant Index Management System (APIMS) as at 7am showed Larkin, Johor, recording an API reading of 174, followed by Sri Aman, Sarawak (172), Kota Tinggi, Johor (168) and Pengerang, Johor (166).
Other stations recording unhealthy air quality were Balok Baru in Kuantan, Pahang (162); Batu Pahat, Johor (161); Bukit Rambai and Bandaraya Melaka, Melaka (both 160); Rompin, Pahang (156); and the Serian District Police Headquarters in Sarawak (155).
Seremban, Kluang and Tawau each recorded readings of 154, while Nilai registered 153, Alor Gajah 152, and Segamat and Tangkak 142 each.
Samarahan recorded an API reading of 133, while Putrajaya registered 109.
A further 44 monitoring stations recorded moderate air quality, while four registered good readings.
An API reading of zero to 50 indicates good air quality, 51 to 100 moderate, 101 to 200 unhealthy, 201 to 300 very unhealthy, and 301 or above hazardous conditions. - October 13, 2026