Haze Damage and Protection

Recently, the Central Meteorological Observatory issued an early warning of heavy fog and oranges, with visibility of less than 1 kilometer from the North Central and South China, the central and western parts of Huanghuai, most of the Jianghuai, northern and eastern Jianghan, northeastern Jiangnan, southern Shaanxi, and the southern and eastern Sichuan Basin. And in areas such as central and southern Jiangsu, northern Zhejiang, western Shanghai, central and northern Anhui, eastern Hubei, most of Henan, southern Hebei, western Shandong, southern Shanxi, and Shaanxi Guanzhong, there are dense fogs with a visibility of less than 500 meters. Among them, the concentration of PM2.5 in Beijing has reached severe levels of pollution, and the visibility is no more than 200 meters.

Haze is a disastrous weather

As a severe weather, smog is an aerosol system composed of a large number of tiny water droplets or ice crystals suspended in the air near the ground. It is a product of condensation (or desublimation) of water vapor in the air near the ground floor. The presence of haze will reduce air transparency and deteriorate visibility. Its main components are sulfur dioxide, nitrogen oxides, and inhalable particles.

The major hazards of smog

Hazard 1: The upper respiratory tract is infected with hazy weather. Floating in the air a lot of harmful substances such as dust particles and smoke particles will cause harm to the human respiratory tract. The air will contain a large number of particles, dust, contaminants and viruses. Once inhaled by the human body, It will stimulate and destroy the respiratory mucosa, make the nasal cavity become dry, destroy the defense ability of the respiratory mucosa, bacteria into the respiratory tract, easily cause upper respiratory tract infection.

Hazard 2: The incubation period of lung cancer ranges from several years to several decades. Children of younger age suffer from lung cancer, which may be related to genetic factors and gene mutations. However, compared with adults, children's height determines that they are actually affected by car exhaust and street dust. This is the consensus of the medical community. Because the children's breathing zone is just near the height of the exhaust gas, and the respiratory exposure of children's unit weight is higher than that of adults, resulting in a higher susceptibility to the disease, so they are more affected by exhaust gases, smog and other polluting gases. In addition, children's body organs are not fully developed, and the damage caused by pollution gas is even greater.

Hazard 3: The inhalable substances in the smog enter the body's blood circulation and gradually accumulate in various organs of the human body, including the scrotum of the semen factory. In addition, since the genitourinary system is the most rapidly metabolizing tissue in the human body, the genitourinary system is the first to be affected when particles inhaled from the outside enter the body's blood circulation, which can cause some diseases of the genitourinary system, such as renal failure and uremia. , less refined, abnormal sperm, prostate hyperplasia.

Hazard 4: The smog particles in the air are attached to the cornea, which may cause keratinitis, conjunctivitis, or increase the patient's condition of keratitis and conjunctivitis. The number of patients with keratitis and conjunctivitis has increased significantly. There are elderly people and children. There are also office workers who face computers all day. People appear to be about the same: dry eyes, soreness, tingling, redness, and allergies.

Personal protection in hazy climate

The air pollution is serious under hazy weather. In this severe weather, individuals should reduce their stay in the outdoors and wear masks. They should wash their faces, rinse their mouths, and clean their noses when they go out. They should reduce window ventilation and choose to spend the noon hours. Avoid thick fog, change outdoor exercise for indoor exercise; adjust diet, drink more water, eat more lung food.