Question

Give the effects of air pollutants on human health.

Effects of air pollutants on human health.

Answer 1

	Pollutants	Effects on human being
1	Carbon monoxide	a) It reduces oxygen carrying capacity of haemoglobin which leads to hypoxia. b) It causes headache, muscular weakness, nausea, exhaustion. c) Excess formation of carboxyhaemoglobin leads to death due to CO poisoning.
2	Hydrogen sulphide	a) Headache, nausea, collapse, conjunctivitis, irritation of mucus membrane, colic diarrhoea, bronchial pneumonia, coma and even death. b) Loss of appetite
3	Tobacco smoke	a) Lung cancer, pulmonary and heart diseases. b) Thickening of bronchial epithelial layer. c) Loss of ciliated cells. d) Appearance of cells with bizarre nuclei (cancerous cells)
4	Sulphur dioxide	Increases chances of occurrence of asthma, bronchitis, emphysema, etc.
5	N2O	Long exposure causes acute respiratory diseases.