Air quality has deteriorated in 30 areas across Malaysia, with readings indicating unhealthy levels. Petaling Jaya recorded an Air Pollutant Index (API) of 149. However, Serian in Sarawak registered the highest reading at 180, signaling significantly polluted air. These readings raise concerns about respiratory health for residents in the affected regions. Authorities have not yet issued specific advisories, but vulnerable groups like children and the elderly are advised to take precautions. The cause of the haze and high API readings is currently under investigation. Further updates will be provided as the situation develops and more information becomes available.