Explain how the various activities of man have caused pollution of air.
Answer:
-Sulphur based chemicals e.g sulphur dioxide gas, H2S,Cl2,HCl from food processing industries increase the risks of respiratory diseases, affects gaseous exchange structures causes acid rain and damage plants leaves.
-Refrigeration, air conditioning industries produce CFCs that deplete the Ozone layer causing genetic mutation.
-Aerosols used in agricultural practices e.g pesticides, herbicides, insecticides etc pollute the air and cause respiratory diseases since they corrode epithelium of respiratory organ thereby allowing bacteria to easily enter. The chemicals are residual and persistent (Not easily) broken down/non-biodegradable.
-Smokes and fumes from motor vehicles, industries, burning fuels/oil/coal produce carbon monoxide which affect oxygen carriage in blood. Fumes also settle on leaves and stop photosynthesis.
-Production of large quantities of CO2 from combustion industries causes green house effect, temperature inversion as a result of heating in lower layers of atmosphere.
-Radioactive emission, carbon cycles from nuclear reactors/ mines/Xrays machines/ atomic bomb plants produce radiations that cause genetic mutation/cancer/ death.
-Noise /sounds produced by heavy machinery, heavy vehicles, aircrafts affect hearing causing hearing impairment in animals.
-Dust from industrial production of cement causes irritation of respiratory systems and eyes. Dust also settles on plants leaves limiting photosynthesis.
-Deforestation/cutting of trees interfere with concentration of gases in the environment leading to grey house effect.
-Forest fires and charcoal burning produces carbon monoxide which affects respiratory system.
-Sewage treatment works release unpleasant gases like H2S, NH3 into the environment causing acid rains, respiratory diseases.
-Quarrying activities produce dust and noise which block stomata thereby reducing photosynthesis.
-Combustion of leaded petroleum interferes with mental development in children, damage organs
like lungs and causes cancer.
-Cigarette smoking/ manufacturing releases nicotine in the air and interferes with foetal development .
-Nitrogen (IV) oxide from nitric acid manufacturing industries is carcinogenic, causes causes acid rain and respiratory diseases
-Refrigeration, air conditioning industries produce CFCs that deplete the Ozone layer causing genetic mutation.
-Aerosols used in agricultural practices e.g pesticides, herbicides, insecticides etc pollute the air and cause respiratory diseases since they corrode epithelium of respiratory organ thereby allowing bacteria to easily enter. The chemicals are residual and persistent (Not easily) broken down/non-biodegradable.
-Smokes and fumes from motor vehicles, industries, burning fuels/oil/coal produce carbon monoxide which affect oxygen carriage in blood. Fumes also settle on leaves and stop photosynthesis.
-Production of large quantities of CO2 from combustion industries causes green house effect, temperature inversion as a result of heating in lower layers of atmosphere.
-Radioactive emission, carbon cycles from nuclear reactors/ mines/Xrays machines/ atomic bomb plants produce radiations that cause genetic mutation/cancer/ death.
-Noise /sounds produced by heavy machinery, heavy vehicles, aircrafts affect hearing causing hearing impairment in animals.
-Dust from industrial production of cement causes irritation of respiratory systems and eyes. Dust also settles on plants leaves limiting photosynthesis.
-Deforestation/cutting of trees interfere with concentration of gases in the environment leading to grey house effect.
-Forest fires and charcoal burning produces carbon monoxide which affects respiratory system.
-Sewage treatment works release unpleasant gases like H2S, NH3 into the environment causing acid rains, respiratory diseases.
-Quarrying activities produce dust and noise which block stomata thereby reducing photosynthesis.
-Combustion of leaded petroleum interferes with mental development in children, damage organs
like lungs and causes cancer.
-Cigarette smoking/ manufacturing releases nicotine in the air and interferes with foetal development .
-Nitrogen (IV) oxide from nitric acid manufacturing industries is carcinogenic, causes causes acid rain and respiratory diseases
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