Ammonia in water below permissible level

NST: The level of ammonia in the malodorous water supplied to houses in several parts of Kuala Lumpur and Selangor is below the permissible level set by the Health Ministry.
In a water sample taken yesterday, the content of ammonia was less than 0.1 parts-per-million (ppm). One ppm equals one milligram of any substance per litre of water.
An engineer in the water quality unit of Syarikat Bekalan Air Selangor Sdn Bhd, who declined to be named, said the level set by the ministry was 1.5 ppm.
"Although the amount is slightly higher than normal, it is below the permissible level.
"On any other day, the treated water is almost completely devoid of the substance."
It was reported today that the unpleasant smell since Feb 26 in areas including Kuala Lumpur, Gombak, Klang, Kuala Selangor and Kuala Langat was due to the high ammonia content in the water from the Selangor River.
The engineer said the problem had been overcome by increasing chlorine content in the water treatment, and it would return to normal in a few days. He also said the water was safe to be consumed.