GEORGE TOWN - The Air Pollutant Index (API) readings surged Tuesday to unhealthy levels on the island, a rise from the moderate readings recorded on Monday.
As of 7am, the API readings at Universiti Sains Malaysia (USM) hit 121, a major increase from 81 at 5pm Tuesday.
Elsewhere, in two other stations, Seberang Jaya 2 recorded up to 132 while in Prai, the readings increased to 118.
Meanwhile, the API readings in other northern parts of Peninsula Malaysia remained at moderate levels.
In Perlis, Kangar, the readings remained at 56.
The readings in Bakar Arang, Sungai Petani was at 87, 61 in Alor Star and 51 in Langkawi, Kedah.