Table 2.4. Water Quality Issues in the Asia-Pacific Region

Quality Issues South Asia South-East Asia Pacific Islands People’s Republic
of China
Japan, Australia,
and New Zealand
Pathogenic agents 1-3 1-2 2-3 1-3 0-1
Organic matter 1-3 0-2 0-1 1-3 0-1
Salinization 0-1 0-1 0-3 0-2 0-1
Nitrate 0-1 0-1 1-2 0-2 0-1
Fluoride 0-1 0 0 0-2 0
Eutrophication 0-1 0-3 0 0-2 0-1
Heavy metals 0-1 0-2 0-1 0-2 0-2
Pesticides 0-1 0-1 0-1 0-1 0-1
Sediment load 0-2 0-2 0-1 0-1 0-1
Acidification 0 0-1 0 0-1 0-1

Source:
ESCAP (1991).
Notes:
0 = No pollution or irrelevant.
1 = Some pollution (water can be used if appropriate measures are taken).
2 = Major pollution.
3 = Severe pollution affecting basic water uses.