Chemicals still found in rivers 18 years later

Quality check: UM researchers collecting water samples from one of the six sampling points in Labis, Segamat to analyse the water quality levels as Tan (back) looks on.

LABIS: A four-year study on water quality at several rivers here affected by an aluminium dross dumping incident in 2006 has detected the lingering presence of chemical substances.

The research, conducted by Universiti Malaya, found concentrations of phosphorus, copper and manganese in the water samples collected at six locations.