What is the index of water pollution?

What is the index of water pollution?

Water pollution index (WPI) The proposed index, WPI is based on the standard permissible limits of groundwater parameter recommended by the BIS and WHO. In this study, WPI for each sample was calculated to evaluate the degree of pollution in groundwater for drinking purpose using 19 water quality parameters (n = 19).

How bad is the water pollution in Malaysia?

According to the Malaysian Environmental Quality Report 2016, out of 477 monitored rivers, only 47% of the rivers were classified as clean and the rest were slightly polluted (43%) and polluted (10%) [8]. Subsequent monitoring in 2017 showed that the percentage of clean rivers was declining.

How can water pollution affect a child development?

Exposures to even low levels of pollution during the first 1000 days can stunt children’s growth, increase their risk of disease, and cause lasting damage to their brains, lungs, reproductive organs and immune systems (Landrigan and Etzel, 2013).

How many rivers are polluted in Malaysia?

In 2019, the number of polluted rivers across the country was around 10. The lowest number of polluted river in the country was in 2015, with 5 rivers in total. In the same year, there were 85 clean river in Malaysia.

What is water pollution for kids?

What is Water Pollution? When various natural water bodies on the Earth, such as lakes, rivers, underground aquatic reservoirs, seas, and oceans are subjected to contamination from man-made activities, such a phenomenon is termed as water pollution.

How is water quality index calculated?

The WQI is calculated by averaging the individual index values of some or all of the parameters within five water quality parameter categories: Water clarity: turbidity (NTU*) and/or Secchi disk depth (meters or feet); Dissolved oxygen: Dissolved oxygen concentration (mg/l);

What is Malaysia Water Quality Index?

Water Quality Index (WQI) – < 92.7. 76.5 – 92.7.

How does pollution affect a child?

Being exposed to air pollution in the womb can alter a baby’s lung development. If your baby is exposed to a lot of air pollution, it can also lead to premature birth and low birth weight.

What is the most polluted river in Malaysia?

In Pasir Gudang, the dirtiest river is also Malaysia’s most polluted.

How many rivers are there in Malaysia?

Malaysia has 189 river basins – 89 in Peninsular Malaysia, 78 in Sabah and 22 in Sarawak. All the rivers originate and flow from the highlands.