The Sungai Semenyih and Bukit Tampoi water treatment plants which had their operation suspended yesterday due to pollution at the raw water source are still not operational as of 7.30 am today.

Air Selangor in a statement said the pollution was still detected at the plants' intakes namely at level five of the threshold odour number (TON) at Bukit Tampoi and at seven TON level at the Sungai Semenyih...