Water Quality In Malaysia

The primary pollutants present in the water are biochemical oxygen demand ammoniacal nitrogen and suspended solids.

Water quality in malaysia. River water quality and status. The department of environment doe uses water quality index wqi and national water quality standards for malaysia nwqs to evaluate the status of the river water quality the wqi introduced by doe is being practiced in malaysia for about 25 years and serves as the basis for the assessment of environment water quality while nwqs classifies the. In 1995 total water withdrawal was estimated at 12 5 km3 or less than 3 percent of available resources. Water supply branch public works department 1998.

Suspended solids ss 76 100. Water cuts affect over 309 687 accounts in klang valley due to sg semenyih pollution incident 26 09 water industry solutions from germany. 76 percent of water was used for agriculture 11 percent for municipal water supply and 13. These are consequences of untreated or only partially treated sewage.

Water quality in malaysia as well as access to water in general is a major problem. Water resources in malaysia are abundant and available throughout the year. Water a situation appraisal and possible actions at the community level. They are estimated at 580 km3 year average 1977 2001 equivalent to more than 3 000 cubic meters per capita and year.

Water quality standard malaysia. National water quality standards for malaysia parameter unit class i iia iib iii iv v al mg l 0 06 0 5 as mg l 0 05 0 4 0 05 0 1 ba mg l 1 cd mg l 0 01 0 01 0 001 0 01 cr iv mg l 0 05 1 4 0 05 0 1 cr iii mg l 2 5 cu. According to clean water action the recent news and reports show that in the world most contaminated taps are not safe for drinking due to heavy industrial and environmental pollution. National water resources study malaysia sectoral report volume 18.

Ammoniacal nitrogen nh3 n 92 100. Water quality index wqi 81 100. Government of malaysia jica 1982. Malaysia water industry report 97 98.

Hence approximately 40 per cent of rivers fail to meet pure water standards.