Among Malaysian states, Sarawak has been the worst hit by transboundary haze linked to forest fires in neighbouring Indonesia.
Sarawak, alongside Sabah, shares a land border with Indonesia on Borneo Island.
Parts of Sarawak have recorded deteriorating air quality over the past week, with Serian becoming the first district to declare a haze-related state of emergency this year on Friday (Sep 4), after its Air Pollutant Index (API) exceeded 500.
Under Malaysia’s API scale, readings above 400 are classified as “very hazardous”. Readings up to 50 are classified as good, 51 to 100 as moderate, 101 to 200 as unhealthy, 201 to 300 as very unhealthy…
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