Theory question 207
Environmental Hazards and Conservation(a) Using specific examples, describe any three causes of air pollution (b) Outline three major effects of air pollution (c) Suggest any three ways of controlling air pollution
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(a) Exhaust fumes from vehicles (Lagos traffic); smoke and fumes from factories and power stations; gas flaring in the Niger Delta; bush burning; mining and quarrying dust; burning refuse; harmattan dust.
(b) Respiratory diseases and other health problems; acid rain damaging buildings, crops and forests; depletion of the ozone layer; global warming; poor visibility leading to accidents; smog.
(c) Laws and monitoring on emissions; filters and cleaner technology in factories; well-maintained vehicles and unleaded fuel; stopping gas flaring; tree planting; public education on waste burning.
Name real sources as examples.