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6.2 Engineering Control
Air pollution control requires intervention of science, law and policy. Intervention
of knowledge of science is required to control air pollution at the pollution source
such as industry, automobile, mining and farming. Policy interventions need to be
enforced by law to discipline few polluters for the benefit of many who are exposed
to pollution.
Science/technology intervention for pollution control includes:
1. Change in manufacturing process
2. Installation of pollution control equipment at the point of emission
3. Location of stationary air pollution sources like industry, and power plant away
from major towns/cities/settlements
4. Banning old vehicles
5. De urbanization
6. Providing lung spaces (Fig. 6.1)
7. Sprinkling water to suppress dust (Fig. 6.2)
8. Alignment of linear air pollution sources like roads, railways so as not to affect
major towns/cities/settlements
9. Change in fuel and/or fuel quality
Fig. 6.1 Lung space preserved at the centre of New Delhi, India
6 Air Pollution Control