According to the environment department’s Air Pollutant Index Management System portal, Alor Gajah in Melaka recorded the highest API reading at 157, followed by Seremban in Negeri Sembilan (155) and Kemaman in Terengganu (153), Bernama reported.

Johan Setia (Klang) in Selangor, Temerloh in Pahang and Balok Baru in Kuantan each recorded an API reading of 152.

Nilai in Negeri Sembilan registered a reading of 138, Banting in Selangor recorded 135 and Cheras in Kuala Lumpur recorded 132.

API readings of between 101 and 200 are categorised as unhealthy and may affect high-risk groups such as the elderly, children and those with respiratory conditions.

In an earlier statement, the department advised the public to limit outdoor activities, wear face masks when outdoors and seek immediate treatment if they experience shortness of breath or respiratory issues.

The latest API readings are available at https://apims.doe.gov.my.