PETALING JAYA: Of the 477 rivers monitored by the Department of Environment last year, 168 were slightly polluted while 33 were polluted, Datuk Seri Dr Wan Junaidi Tuanku Jaafar said.
The number of clean rivers, however, has increased from 244 in 2014 to 276 last year. Water quality was assessed from a total of 5,469 samples taken nationwide.
