PETALING JAYA - Three areas - Seri Manjung in Perak, Port Klang in Selangor and Sibu, Sarawak - have recorded unhealthy Air Pollutant Index (API) readings of 101, 119 and 177.
The Natural Resources and Environment Ministry, in a statement, said the latest readings taken at 5pm yesterday, showed 36 areas with "moderate" air quality while 12 other areas recorded "healthy" readings.
"The south-west monsoon currently experienced by the country is expected to continue until September," said the statement.
According to the ASEAN Specialised Meteorological Centre (ASMC) based in Singapore on July 26, satellite images from the National Oceanic and Atmospheric Administration detected 74 hotspots in Sumatra while in another part of Indonesia, Kalimantan, the number dropped to 126 hotspots compared to 157 on July 25.
The regional haze map issued by ASMC showed movement of smoke from fire areas in Riau in Sumatra and west Kalimantan.
"It also showed the movement of moderate haze smoke to the interior of the west coast of the peninsula and southern Sarawak.
"Another 50 hotspots have been detected in Malaysia - seven in Sabah and 43 in Sarawak.All the hotspots detected in the country will be investigated and necessary enforcement action will be taken," the statement added.
Based on investigations by the Department of Environment (DOE), as of July 26, 4,408 cases of open burning have been detected so far this year. During the same period, 315 open burning cases have been compounded while warning notices issued for 101 cases.
"For another 45 cases, investigation papers have already been opened for prosecution," it said. The latest API readings can be viewed at apims.doe.gov.my.
The public are urged to report any cases of open burning to the Fire and Rescue Department by calling 999 and the DOE at 1-800-88-2727.