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Malaysia

All Johor air monitoring stations record unhealthy readings

Johor’s eight air‑quality monitoring stations all recorded unhealthy Air Pollutant Index (API) levels at 8 am on Tuesday, 6 October, according to the Air Pollutant Index Management System (APIMS). The state’s highest…

Source: NST Online · October 7, 2026 at 3:32 AM · AI-assisted report

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All Johor air monitoring stations record unhealthy readings
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JOHOR, 7 OCTOBER 2026 —

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Johor’s eight air‑quality monitoring stations all recorded unhealthy Air Pollutant Index (API) levels at 8 am on Tuesday, 6 October, according to the Air Pollutant Index Management System (APIMS).

Market Impact

The state’s highest reading was 188 in Batu Pahat, the national peak for the day, followed by Kluang (169), Segamat (166), Larkin (166), Pasir Gudang (165), Tangkak (164), Kota Tinggi (155) and Pengerang (154).

Across Malaysia, 21 areas were classified as unhealthy at the same time, up from 11 areas at 4 pm on Monday.

The other unhealthy sites were Nilai (161) and Seremban (157) in Negeri Sembilan, Bandaraya Melaka (155), Balok Baru Kuantan (153) and Rompin (152) in Pahang, Putrajaya (152), Indera Mahkota Kuantan (142) in Pahang, Cheras (140) and Batu Muda (120) in Kuala Lumpur, Kemaman (134) in Terengganu, Bukit Rambai (115) in Melaka, Paka (111) in Terengganu and Jerantut (102) in Pahang.

The two sites that were unhealthy on Monday—IPD Serian in Sarawak (150) and Johan Setia in Selangor (144)—have since fallen to the moderate range at 98. Other moderate readings include Alor Gajah in Melaka (100), IPD Serian and Johan Setia (98 each), Kuching in Sarawak (94), Tawau in Sabah (93) and Petaling Jaya in Selangor (91).

Shah Alam (91) and Banting (91) in Selangor, Samalaju in Sarawak (90) and Port Dickson in Negeri Sembilan (88) also recorded elevated moderate levels.

A total of 41 areas nationwide were in the moderate range at 8 am, down from 55 at 4 pm on Monday. Five areas recorded good readings: Minden in Pulau Pinang (45), Kota Kinabalu in Sabah (44), Kangar in Perlis (35), Langkawi in Kedah (29) and Balik Pulau in Pulau Pinang (23). API values of 0–50 indicate good air quality, 51–100 moderate, 101–200 unhealthy, 201–300 very unhealthy and above 300 hazardous.

The data are released hourly from 68 monitoring stations across the country.

Related: Johor

Reporting based on NST Online. Figures and claims are subject to revision as the story develops. DomainFork publishes editorial context, not investment advice — see our editorial standards.

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