Malaysia Haze Worsens, 35 Areas Hit Unhealthy API

Malaysia's air quality plummets as 35 areas hit 'Unhealthy' API levels, with Selangor's Johan Setia leading the pollution crisis.

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Sep 18, 2026

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Malaysia Haze Worsens, 35 Areas Hit Unhealthy API

Malaysia's air quality plummets as 35 areas hit 'Unhealthy' API levels, with Selangor's Johan Setia leading the pollution crisis.

In brief

Malaysia's air quality plummets as 35 areas hit 'Unhealthy' API levels, with Selangor's Johan Setia leading the pollution crisis. Malaysia's air quality deteriorates to 'Unhealthy' levels in 35 areas, with Selangor's Johan Setia recording the highest pollution. Originally reported by Malay Mail.

Haze Crisis Deepens

Haze Crisis Deepens

Malaysia's air quality deteriorated further by midday on September 18, with 35 monitoring stations recording 'Unhealthy' Air Pollutant Index levels.

“Johan Setia in Selangor remained the nation’s most polluted area, registering an API reading of 193 at noon.”

Selangor Leads Pollution

Johan Setia in Selangor recorded the highest pollution levels nearing the 'Very Unhealthy' category with an API reading of 193.

“The reading keeps the area perilously close to the 'Very Unhealthy' benchmark of 200, after logging a peak of 198 earlier in the day.”

Sarawak Hit Hard

Sarawak recorded eight locations with unhealthy API levels, including Kuching at 184 and Samarahan at 175.

“Sarawak registered the highest number of affected stations nationwide, with eight locations in the unhealthy band.”

Klang Valley Affected

Klang Valley and neighboring states saw elevated pollution, with Kuala Lumpur logging 168 and Putrajaya at 176.

“In the Federal Territories, Putrajaya posted 176, while Kuala Lumpur logged identical readings of 168 in both Batu Muda and Cheras.”

Other States Impacted

Perak, Melaka, Johor, Pahang, and Sabah also reported unhealthy air quality levels across multiple locations.

“Johor logged five affected locations, led by Segamat at 160 and Tangkak at 159.”

Continuous Monitoring

The Department of Environment maintains round-the-clock air quality surveillance to track fluctuations from regional wind shifts and transboundary haze.

“The DoE confirmed it is maintaining round-the-clock air quality surveillance across the country, cautioning that readings will continue to fluctuate.”

What matters most

Malaysia's air quality deteriorates to 'Unhealthy' levels in 35 areas, with Selangor's Johan Setia recording the highest pollution.

Read the original on Malay Mail

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