GEORGE TOWN: Penang is shrouded in haze as the air pollutant index (API) hit unhealthy levels on both the island and mainland on Monday (Aug 4).
At 10am, Permatang Pauh recorded an API of 105, while the reading in Perai was 121 and Balik Pulau was at the high end of the "unhealthy" bracket at 197.
On the island, Universiti Sains Malaysia had an API reading of 95, still in the "moderate" range.
API readings are categorised as good (zero-50), moderate (51-100), unhealthy (101-200), very unhealthy (201-300), and hazardous (301 and higher).
