Air Selangor: Sungai Semenyih plant cleared, Bukit Tampoi still down

The Sungai Semenyih water treatment plant has been cleared of odour pollution and has resumed operations after sample tests.

However, Air Selangor reported that tests at its Bukit Tampoi treatment plant still show a threshold odour number (TON) of two as at 6am today, a significant improvement from the nine TON recorded at 6.30pm yesterday.