PETALING JAYA – Haze has returned again to Malaysia, with parts of Selangor and Penang recording unhealthy Air Pollutant Index (API) readings yesterday.

Five areas registered unhealthy readings as at 11am – Port Klang, Kuala Selangor, Shah Alam, Seberang Jaya 2 in Prai of Penang, and Kampong Air Putih in Taiping all registered between 100 and 200 on the API.

Port Klang had the highest API of 153 at 6pm.

Most of these pollutants come from sources such as industries, motor vehicles, open burning as well as power generation.

Readings at several areas yesterday veered close to borderline unhealthy, including Petaling Jaya (94), Bakar Arang in Kedah (99) and Tanjung Malim (96) in Perak.

Some 14 out of 52 areas that were monitored recorded good air quality while the remainder registered moderate levels.

As for visibility on the ground, the Malaysian Meteorological Department recorded that some cities and towns still had visibility of more than 10km.

However, some areas encountered hazy skies, like Penang’s Butterworth (3km) and Bayan Lepas, and Petaling Jaya (2.5km) in Selangor.

A normal polluntants index reading is between zero and 50, moderate 51 and 100, unhealthy 101 and 200, very unhealthy 201 and 299, and hazardous 300 and above.


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