What is the weather system that causes sandstorms?

Sandstorm is a disastrous weather phenomenon in which wind and sand interact. Its formation is closely related to global greenhouse effect, El Nino phenomenon, forest decline, vegetation destruction, species extinction, climate anomaly and other factors. Among them, excessive exploitation of natural resources, excessive deforestation and excessive land reclamation caused by population expansion are the main reasons for frequent sandstorms. The data show that when the inhalable particulate matter is above one hundred and fifty micrograms/cubic meter, the air will be polluted to varying degrees, and the respiratory tract of sensitive people will obviously feel uncomfortable.

The so-called sandstorm weather refers to a weather phenomenon in which local or nearby dust is blown by the wind, making the air turbid and the atmospheric visibility significantly reduced. According to its intensity from high to low, it can be divided into three grades: sandstorm, sand blowing and floating dust. Sandstorm means that the air is very turbid and the horizontal visibility is within one kilometer; Sand blowing indicates that the air is quite turbid, and the horizontal visibility is between one and 10 km; Floating and sinking means that dust and fine sand float evenly in the air, so that the horizontal visibility is less than 10 km.

What is a sandstorm?

How to protect yourself in sandstorm weather?

Sandstorm is a disastrous weather phenomenon in which wind and sand interact. Its formation is closely related to global greenhouse effect, El Nino phenomenon, forest decline, vegetation destruction, species extinction, climate anomaly and other factors. Among them, excessive exploitation of natural resources, excessive deforestation and excessive land reclamation caused by population expansion are the main reasons for frequent sandstorms.

The data show that when the inhalable particulate matter is above one hundred and fifty micrograms/cubic meter, the air will be polluted to varying degrees, and the respiratory tract of sensitive people will obviously feel uncomfortable.

The so-called sandstorm weather refers to a weather phenomenon in which local or nearby dust is blown by the wind, making the air turbid and the atmospheric visibility significantly reduced. According to its intensity from high to low, it can be divided into three grades: sandstorm, sand blowing and floating dust. Sandstorm means that the air is very turbid and the horizontal visibility is within one kilometer; Sand blowing indicates that the air is quite turbid, and the horizontal visibility is between one and 10 km; Floating and sinking means that dust and fine sand float evenly in the air, so that the horizontal visibility is less than 10 km.

We usually call floating dust "inhalable particles". Because of its light volume, it can float in the atmosphere for a long time, and the floating range can reach tens of kilometers, which can cause continuous accumulation in the atmosphere and gradually aggravate the pollution degree. Floating dust can directly drive human body through collision, diffusion and deposition, invade human alveoli and stay in different parts of respiratory tract, and most of them with particle size less than 5 microns stay in upper respiratory tract. Particles trapped in the nasopharynx and trachea, together with harmful gases such as sulfur dioxide entering the human body, stimulate and corrode mucous membranes, damage mucous membranes and cilia, cause inflammation and increase airway resistance. Persistent effects can lead to chronic nasopharyngitis and chronic tracheitis.

Therefore, all kinds of protective work should be done in sandstorm weather. Individuals should protect themselves and try to reduce going out. First of all, close the doors and windows in time, try to avoid riding bicycles when going out, and pay attention to wearing dust-proof clothes, gloves, masks, glasses, etc. And wash your hands and face frequently. You can protect your eyes, mouth and nose with wet towels and gauze towels to reduce the inhalation of dust particles.

At the same time, due to the influence of sandstorm, the climate will be drier than usual. At this time, particles can easily enter the human body through the gap in the nasal cavity, so it is necessary to pay attention to drinking more water and enhance the adaptability to the environment.

In case of chronic cough accompanied by expectoration or shortness of breath, paroxysmal wheezing and chest pain, you should see a doctor as soon as possible, seek the help of professional medical staff and carry out corresponding treatment under their guidance.