hue1372 2012-02-09 03:11:11
There are SOx, nitrogen oxide, carbon monoxide, a suspended particulate substance, and photochemical oxidants in the substance leading to air pollution.These substances are generated by everyday action and cause various respiratory diseases.

SOx is generated by combustion of coal or oil and causes chronic bronchitis and bronchial asthma.

Nitrogen oxide exists in the exhaust gas of a car, and causes chronic bronchitis and pulmonary emphysema.

Carbon monoxide is contained in the exhaust gas of a car, or the smoke of tobacco. It combines with hemoglobin in blood.And carboxyhemoglobin is formed.As a result, the conveyance obstacle of oxygen arises, and it is connected with the insufficient oxygen of cerebral tissue.Headache and forgetfulness are caused.

A substance of 10 micrometers or less is called a suspended particulate substance in particulates. Particulates are charcoal powder and soot. It is contained in the exhaust gas of a car, or the smoke of a factory. If particulates are inhaled, it will also become a cause of chronic bronchitis, bronchial asthma, schistosis, and lung cancer. It is supposed that it is related also to the onset of hay fever in recent years.

SOx and hydrocarbon in the atmosphere are generated by causing a photochemical reaction owing to ultraviolet rays.The main ingredients of photochemical oxidants are water solubility, and are the strong chemical substances of an oxidization action.Eyes and the throat skin are stimulated.The pain of eyes, the pain of a throat, the pain of a cough and the skin, etc. are caused.

Many these substances are generated in the larger cities.