GEORGE TOWN: Air quality continued to worsen in Penang due to the haze while neighbouring Kedah, Perlis and Perak saw slight improvement.
The Air Pollutant Index (API) registered at the Department of Environment (DOE) monitoring station in Seberang Jaya showed an unhealthy level of 102 at 1pm before improving to 100 two hours later.
At the stations in Prai and Universiti Sains Malaysia, the readings were moderate at 94 and 88, respectively, as at 3pm.
This was an increase compared to Wednesday when it was 83 (Prai), 78 (Seberang Jaya) and 79 (USM) at 5pm.
Visibility levels in Bayan Lepas and Prai were at 6km at 3pm while in Butterworth, it was at 5km.
Meanwhile, most stations in Perak recorded only slight improvement in the reading.
According to the DOE, the highest reading of 98 came from the SK Jalan Pegoh station in Ipoh as of 2pm.
The Seri Manjung station recorded a reading of 93, an improvement from its Wednesday reading of 123.
The reading for Kampung Air Putih in Taiping was 78, while the Jalan Tasek station in Ipoh and Tanjung Malim station were 68 and 65, respectively.
In Kedah, the haze situation was relatively better with an API reading of 51 recorded at the Alor Setar station and 73 at the Batu Arang station in Sungai Petani.
In Perlis, the air quality was considered good as the reading was at 44.