Indonesian haze has 30 Malaysian towns in 'unhealthy' air, peaking at 181. Will any reading top 200 before Sept 1?

Air quality across Malaysia's Sarawak state deteriorated sharply in the final week of August 2026, with the Air Pollutant Index (API) surpassing the 200 threshold that defines "very unhealthy" conditions. Sri Aman recorded the state's worst reading on August 28, with its API hitting 215 at 4 p.m., the only district above 200 that day. Conditions worsened further over the following two days: by August 30, Serian's API had spiked to a hazardous 350-357, with additional readings above 200 also recorded in Samarahan and Kuching. Malaysia's Department of Environment attributed the deterioration to haze drifting in from multiple directions, consistent with transboundary smoke from land and forest fires burning across the wider Indonesian and Bornean region during the dry season. The Malaysian government had already flagged 30 towns nationwide in the "unhealthy" category earlier in the month, with readings peaking at 181 before the late-August surge pushed several Sarawak districts into "very unhealthy" and "hazardous" territory. The community was skeptical that any reading would clear 200 before September 1, with only 42% predicting "yes," but that forecast proved wrong once Sri Aman, Serian, Samarahan, and Kuching all posted readings well above the threshold in the season's worst haze episode to date.