Chapter 9
9.40
(ii)
Hot Water:
Used as coolant in industries;
its discharge raises water temperatures, dis-
rupting oxygen solubility and fish metabo-
lism, thereby altering river ecosystems.
2.
Non-point Source Pollution:
•
Occurs from diffuse sources over large areas, such
as construction runoff and acid rain.
•
Key contributors include:
(i)
Municipal
Wastewater:
From
domestic
sources, a significant factor in river pollution.
(ii)
Surface Run-off:
Agricultural practices cause
fertilizers and pesticides to leach into ground-
water, affecting its quality. Industrial presence
exacerbates this issue.
(iii)
Oil Spills: ...
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