Page 170 - Health, Population and Environment Education 9

g. Irrigating the agricultural land with polluted water destroys the crops.
h. If the vegetables and fruits are washed with polluted water, the consumers may
suffer from various water-borne diseases.

Control measures of water pollution
The following measures can be adopted for the control of water pollution.
a. Random disposal of wastes from market and settlement areas in the water resources
should be banned.
b. The sewage and drainage from settlement areas should be treated first before
discharging into water resources.
c. The industrial discharges should be treated first before joining into water resources.
d. Random and excessive use of chemical fertilizers on land should be stopped.

e. The dumping site should be made far away from the water resources.

Fig: 18
Treatment of sewage and drainage Treatment of hospital wastes
f. Plantation should be done to control landslide and flood.
g. The solid and liquid wastes produced from the hospitals, workshops, laboratories,
etc. should be managed properly.
h. Strict rules and regulations should be made to control water pollution from industries
and settlement areas.
i. People should be made aware regarding causes and effects of water pollution.

C. Land Pollution
The undesirable change in physical, chemical and
biological characteristics of land due to addition
of unwanted substances that adversely affects the
survival of living beings on land is called as land
pollution.
Random deposition of wastes from settlement areas,
industries, market, hospitals as well as random and
excessive use of chemical fertilizers on land causes Fig: 19
land pollution. As a result, the entire terrestrial Land pollution
170 GREEN Environment Population and Health Education Book-9