Which of the following statements regarding the effects of gaseous air pollutants is not correct ........

Environment and Ecology (Easy) Pollution

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Which of the following statements regarding the effects of gaseous air pollutants is not correct?

Sulphur Dioxide causes stiffness of flower buds which fall off from the plants

The red haze in traffic is due to existence of oxides of Nitrogen

Hydrocarbon pollutants are formed by incomplete combustion of fuel

Carbon dioxide binds with haemoglobin in blood to form carboxyhaemoglobin

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Explanation:

Carbon monoxide (CO) is one of the most serious air pollutants. It is a colourless and odourless gas, highly poisonous to living beings because of its ability to block the delivery of oxygen to the organs and tissues. It is produced as a result of incomplete combustion of carbon. Carbon monoxide is mainly released into the air by automobile exhaust. It binds to haemoglobin to form carboxyhaemoglobin, which is about 300 times more stable than the oxygen-haemoglobin complex. In blood, when the concentration of carboxyhaemoglobin reaches about 3–4 per cent, the oxygen carrying capacity of blood is greatly reduced. This oxygen deficiency, results into headache, weak eyesight, nervousness and cardiovascular disorder.
Hence option 4 is incorrect.