PETALING JAYA: Air quality reached unhealthy levels in the peninsulas west coast yesterday, indicating that the haze could be back, the Department of Environment said.
Its air division director Che Asmah Ibrahim said that four air quality-monitoring stations in the country recorded unhealthy air quality readings, 38 others recorded moderate quality and only six recorded good quality.
Visibility in Butterworth dropped to as low as 2km in the morning, while poor visibility of as low as 3km was recorded here and in Subang as at 3pm.
She said that Alor Star, Sepang, Ipoh and Sitiawan experienced fluctuating visibility of between 6km to 8km.
Normal visibility exceeds 10km in good conditions.
Che Asmah attributed the haze to an increase in hotspots in central Sumatra in the past few days. There were 312 hotspots reported on Saturday.
There also were hotspots recorded in Pahang and Johor but these were not a big factor in determining the west coast's air quality, she said when contacted yesterday.
She said the haze could persist with dry and hot weather expected in the next four to five days.
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