The Air Pollutant Index (API) readings are mostly good nationwide except for unhealthy readings at Johan Setia Klang (115) in Selangor and SK Kuala Baram 2 (134) in Sarawak.-Bernama

KUALA LUMPUR: Thunderstorms are expected in Kelantan, Terengganu, Sandakan and the west coast and interior of Sabah this evening.

The Meteorological Department said some rural areas in Perak and Perlis were also likely to be affected.

No rain is expected in Selangor; Putrajaya; Kuala Lumpur; Negri Sembilan; Melaka; Labuan; Tawau and Kudat in Sabah; and Sri Aman, Betong, Sarikei, Sibu, Mukah, Kapit, Bintulu, Miri and Limbang in Sarawak in the evening.

In Sarawak, Kuching, Serian and Samarahan will be affected by haze.

The Air Pollutant Index (API) readings are mostly good nationwide except for unhealthy readings at Johan Setia Klang (115) in Selangor and SK Kuala Baram 2 (134) in Sarawak.

The haze is now at a hazardous level at the Miri Industrial Training Institute in Sarawak with an API reading of 391.

API readings are based on the presence of particle matter of less than 2.5 micron.

The air pollution level is categorised as good from zero to 50, moderate (51-100), unhealthy (101-200), very unhealthy (201-300) and hazardous (301 and more).

For updates on the latest readings (updated hourly), visit apims.doe.gov.my