What are the hazards of fog to human body

The rapid development of social economy is accompanied by more and more environmental problems, including water pollution, waste pollution and air pollution. Among all kinds of pollution, air pollution is the most unavoidable, because air is one of the basic elements to maintain human survival, so the contact between human and air is unavoidable. Air pollution can cause many consequences, such as acid rain, fog, etc. Today, let’s talk about the harm of fog to the human body.

Fog mainly comes from two aspects. One is harmful industrial dust and waste gas. Foggy days are mostly variable cold high-pressure weather systems with low wind speeds and are often accompanied by strong temperature inversion, which is not conducive to the diffusion of pollutants in the atmosphere. The extremely tiny fog droplets cause acids, alkalis, phenols, amines, benzene, salts, heavy metal particles and other pathogenic substances harmful to the human body in the atmosphere to accumulate and diffuse everywhere, unable to diffuse or dilute. In addition, various harmful substances tend to react more frequently with each other, and the new toxic substances generated are more harmful to the body than the original pollutants. Therefore, fog aggravates air pollution, accelerates the spread and transmission of various pathogens, and intensifies the invasion of diseases on the human body. It is an important factor in inducing various diseases of the lungs, trachea, bronchi, throat, nostrils, eyes, skin, etc., as well as causing cancer, mutagenesis or promoting cancer. Second, hydrocarbons and nitric oxide emitted by cars and nitrogen dioxide in the atmosphere react chemically under the action of sunlight to produce light blue photochemical smog composed of ozone, nitric oxide, formaldehyde, acetaldehyde, phenol and other oxidants and heavy metals. This will not only aggravate the fog, but also irritate people's eyes and mucous membranes, causing headaches, vomiting, and breathing disorders. It can easily induce chronic respiratory diseases, cause abnormal lung function in children, and even cause death in severe cases.

Fog is very harmful to the human body. You should try to avoid going out on foggy days, especially in smog weather. When the smog is very serious, if you walk on the street, you may experience breathing difficulties and respiratory infections, so you should still avoid going out. Of course, this is not a fundamental solution to the problem. It is better to protect the environment and plant more trees.