PETALING JAYA: Pasir Gudang in Johor recorded an unhealthy Air Pollutant Index (API) reading of 194 as of 12pm Saturday (Oct 17), the highest nationwide, according to the Environment Department's Air Pollutant Index Management System (APIMS).
23 other areas were also unhealthy, with Johor topping the list with eight areas, followed by Selangor with five.
In Johor, Pasir Gudang (197) was followed by Larkin (176), Pengerang (172), Kota Tinggi (172), Batu Pahat (170), Tangkak (168), Segamat (162) and Kluang (160).
Meanwhile, in Selangor, the affected areas are Shah Alam (170), Johan Setia (170), Petaling Jaya (169), Klang (169) and Banting (153).
In Negri Sembilan, the readings were Nilai (176), Seremban (176) and Port Dickson (157), while in Melaka they were Bukit Rambai (168), Bandaraya Melaka (168) and Alor Gajah (167).
Cheras (163) and Batu Muda (161) in Kuala Lumpur and Putrajaya (163) were also in the unhealthy range.
Two areas in Sabah, Sandakan (157) and Tawau (142), were also unhealthy.
Meanwhile, 44 other areas around the country recorded API readings at the moderate level.
API readings of between zero and 50 indicate good air quality, 51 to 100 moderate, 101 to 200 unhealthy, 201 to 300 very unhealthy, while readings above 300 are categorised as hazardous.
API data is released hourly based on readings from 68 air quality monitoring stations nationwide.
