Serian remains only Sarawak area with 'Very Unhealthy' air as haze improves
Sarawak's air quality improved on Sept 9, but Serian remained the only area with a 'Very Unhealthy' API reading of 210 at 7pm. Lundu improved to 'Unhealthy' after its reading fell to 185, while Bario was the only area with 'Good' air quality.