As of 10am today, the air pollutant index for Kuching and two other areas in Sarawak have increased to a very unhealthy levels.
According to reports, Kuching hit a high of 248, while the readings in Sri Aman and Samarahan are 246 and 202 respectively.
Earlier this morning, Sarikei recorded an API reading of 206. Amongst other areas that falls under unhealthy category are Sibu, Mukah and Miri.
A cloud seeding operation aimed at reducing the effects of the haze, particularly in western Peninsular Malaysia and western Sarawak will be conducted when atmospheric conditions permit, Meteorological Department said.
In cooperation with the National Disaster Management Agency and the air force, they were in a state of readiness to conduct the operation.
Parts of Peninsula Malaysia, such as Cheras, Nilai, Batu Muda and Johan Setia Klang also have readings of more than 100 API.
An API reading of 0 to 50 indicates good air quality; 51 to 100, moderate; 101 to 200, unhealthy; 201 to 300, very unhealthy and 300 and above, hazardous. To get the latest API readings, the public can refer to the Environment Department portal.