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Atmospheric pollution and human health

Atmospheric pollution mainly refers to the chemical pollution of the atmosphere.There are many types of high leakage of chemical pollutants in the atmosphere, as many as dozens of them are seriously harmful to the human body.my country’s air pollution belongs to coal -type pollution, and the main pollutants are smoke and dust and sulfur dioxide. In addition, nitrogen oxides and carbon monoxide.These pollutants are mainly entered the human body through the respiratory tract, and they are directly transported from blood to the whole body without the detoxification effect of the liver.Therefore, the chemical pollution of the atmosphere is very harmful to human health.This harm can be divided into three types: chronic poisoning, acute poisoning and carcinogenic effects.

The concentration of chemical pollutants in chronic poisoning atmosphere is generally relatively low, which has the main effect of chronic poisoning in the human body.Scientific research shows that the chemical pollution of urban atmosphere is an important cause of chronic bronchitis, emphysema, and bronchial asthma.When acute poisoning emits harmful gases in the factory and has no wind and fog, chemical pollutants in the atmosphere are not easy to spread, which will cause acute poisoning.For example, in 1961, the three petrochemical companies in Japan’s four -day cities were constantly emitted with chemical pollutants such as sulfur dioxide, coupled with windless weather, which caused local residents to greatly occur.Later, the local air pollution was treated, and the incidence of asthma was reduced.

The carcinogenic effects in the atmosphere of chemical pollutants have carcinogenic effects include polygon aromatic hydrocarbons and PB compounds. Among them, 3,4-benzene and pheasant cause lung cancer.Burning coal, driving cars, and cigarette smoke contain a lot of 3,4-benzene meal.The chemical pollutants in the atmosphere can also be landed into Qixiang’s rotten water and soil, as well as crops, and after being absorbed and enriched by crops, and then harm human health.