Air Quality Nationwide Remains Good To Moderate With Zero Unhealthy Stations Recorded

KUALA LUMPUR, Nov 3 – Air quality across Malaysia remained within acceptable parameters on Tuesday, November 3, 2026, with zero monitoring stations recording unhealthy Air Pollutant Index (API) readings as of 9:00 AM.

According to updated data from the Department of Environment’s Air Pollutant Index Management System (APIMS) portal, 43 areas registered moderate API readings nationwide, led by Johan Setia in Selangor, which logged the highest reading at 79.

Other monitoring locations across Selangor registering moderate air quality included Klang (77), Shah Alam (72), Banting (64), Petaling Jaya (62), and Kuala Selangor (55).

In the Klang Valley federal territories, Kuala Lumpur recorded moderate readings at Batu Muda (68) and Cheras (62), while Putrajaya registered an API score of 65.

Moderate readings were also reported across key industrial and urban centers in other states:

• Negeri Sembilan: Nilai (71), Seremban (57), and Port Dickson (56).
• Perak: Seri Manjung (69), Tasek Ipoh (67), Pegoh Ipoh (56), Taiping (54), and Tanjung Malim (54).
• Johor: Pasir Gudang (71), Larkin (70), Kota Tinggi (62), Kluang (61), Batu Pahat (55), Pengerang (55), and Segamat (55).
• Penang: Seberang Perai (64), Seberang Jaya (53), and Minden (52).
• Pahang & Kelantan: Balok Baru, Kuantan (62), Rompin (59), and Indera Mahkota, Kuantan (53) in Pahang; Kota Bharu in Kelantan (60).
• Melaka & Terengganu: Bukit Rambai (59), Bandaraya Melaka (57), and Alor Gajah (56) in Melaka; Kuala Terengganu (59) and Besut (55) in Terengganu.
• Sabah & Sarawak: Tawau (60), Sandakan (56), and Politeknik Kota Kinabalu (56) in Sabah; Samalaju (59) and Bintulu (53) in Sarawak.

Under national air quality classification standards, an API value of 0 to 50 denotes good air quality, 51 to 100 indicates moderate levels, 101 to 200 represents unhealthy conditions, 201 to 300 signifies very unhealthy levels, and readings exceeding 300 are classified as hazardous.

APIMS Monitoring, State Breakdown, and API Classification Scale

Key environmental monitoring highlights, regional readings, and API scale benchmarks include:

• National Overview: 43 stations recorded moderate API levels; zero stations entered the unhealthy range (101+) as of 9:00 AM.
• Highest Recorded Reading: Johan Setia, Selangor registered the highest national reading at 79.
• Klang Valley Indicators: Johan Setia (79), Klang (77), Shah Alam (72), Batu Muda KL (68), Putrajaya (65), Banting (64), Cheras KL (62), and Petaling Jaya (62).
• API Benchmark Categories: Good (0–50), Moderate (51–100), Unhealthy (101–200), Very Unhealthy (201–300), and Hazardous (300+).

–NMT