What are the hazards of sandstorm weather?

Sandstorm weather is a disastrous natural phenomenon, which mainly appears in northwest China and northern North China. Sandstorms can cause houses to collapse, traffic power supply to be blocked or interrupted, fires, human and animal casualties and so on. Pollution of the natural environment and destruction of crop growth. It has caused serious losses and great harm to the national economic construction and the safety of people's lives and property. The main hazards of sandstorms are:

1. deterioration of ecological environment

When the sandstorm strikes, the air is full of sand and stones wrapped in strong winds and floating dust everywhere. The number of people passing through areas with air turbidity, nose and eye suffocation, respiratory tract and other diseases has increased. For example,1A serious sandstorm occurred in Jinchang on May 5, 993. The dust content in outdoor air is 10 16 mm/cm3, and the dust content in indoor air is 80 mm/cm3, which is 40 times higher than the national standard for dust content in living quarters.

2. Production and life are affected

A large amount of dust carried by sandstorm weather blocks the sunshine, reduces the visibility of normal sky, and the weather is gloomy, which leads to the reduction of solar radiation. A few hours to ten hours of poor visibility can easily make people feel depressed and reduce the efficiency of work and study. In light cases, a large number of livestock can be infected with respiratory and gastrointestinal diseases, and in severe cases, a large number of "spring-deficient" livestock will die, and fertile soil, seeds and seedlings in farmland will be scraped away. Sandstorm will also aggravate the wind erosion and desertification of the surface soil, cover thick dust on the leaves of plants, affect normal photosynthesis and cause crop yield reduction. Sandstorms also caused the temperature to drop sharply. The sky is like a parasol, and the ground becomes dark and cold in the shadow. This sudden weather change will make people unprepared.

3. Loss of life and property

1On May 5, 1993, a serious sandstorm occurred in Jinchang, Wuwei, Minqin and Baiyin, Gansu Province, which affected 2,535,500 mu of farmland, lost 42,800 trees, caused a direct economic loss of 236 million yuan, and killed 50 people and seriously injured 153 people. On April 12, 2000, strong sandstorms occurred in Yongchang, Jinchang, Wei Wu and Minqin. According to incomplete statistics, the direct economic losses of Jinchang and Wei Wu alone amounted to15.34 million yuan.

4. Affect traffic safety (traffic accidents such as airplanes and automobiles)

Sandstorm weather often affects traffic safety, causing planes to fail to take off or land normally, and making cars and train carriages rupture, stop or derail.

5. Harm to human health

When people are exposed to dusty weather, dust containing various toxic chemicals and bacteria can enter the mouth, nose, eyes and ears through layers of protection. A large number of harmful substances will be infected with various diseases and seriously threaten people's health if they are not removed from various organs of the human body.