What is the weather system that causes sandstorms?
Sandstorm is a disastrous weather phenomenon in which wind and sand interact. Its formation is inseparable from factors such as the global greenhouse effect, El Niño phenomenon, forest decline, vegetation destruction, species extinction, and climate abnormalities. relationship. Among them, over-exploitation of natural resources, excessive deforestation, and over-cultivation of land caused by population expansion are the main reasons for frequent sand and dust storms. Data show that when inhalable particulate matter exceeds 150 micrograms/cubic meter, the air will be polluted to varying degrees, and the respiratory tracts 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 up by the wind, making the air turbid and significantly reducing atmospheric visibility. According to its intensity from high to low, it can be divided into three levels: sandstorm, blowing sand and floating dust. Sandstorm refers to the air being very turbid, with horizontal visibility within one kilometer; blowing sand refers to the air being quite turbid, with horizontal visibility ranging from 1 to 10 kilometers; floating and sinking refers to dust and fine sand floating evenly in the air, making the horizontal visibility less than 10 kilometers .
What is a sandstorm?
How to protect yourself during sandstorms?
Sandstorm is a disastrous weather phenomenon in which wind and sand interact. Its formation is inseparable from factors such as the global greenhouse effect, El Niño phenomenon, forest decline, vegetation destruction, species extinction, and climate abnormalities. relationship. Among them, over-exploitation of natural resources, excessive deforestation, and over-cultivation of land caused by population expansion are the main reasons for frequent sand and dust storms.
Data show that when the inhalable particulate matter is above 150 micrograms/cubic meter, the air will be polluted to varying degrees, and the respiratory tracts 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 up by the wind, making the air turbid and significantly reducing atmospheric visibility. According to its intensity, it can be divided into three levels: sandstorm, blowing sand and floating dust. Sandstorm refers to the air being very turbid, with horizontal visibility within one kilometer; blowing sand refers to the air being quite turbid, with horizontal visibility ranging from 1 to 10 kilometers; floating and sinking refers to dust and fine sand floating evenly in the air, making the horizontal visibility less than 10 kilometers .
Floating dust is also commonly referred to as "respirable particles". Because of their light size, they can float in the atmosphere for a long time. The floating range can reach dozens of kilometers, which can cause continuous damage in the atmosphere. accumulation, gradually increasing the level of pollution. Flying dust can drive straight into the human body, invade the human alveoli, and stay in different parts of the respiratory tract through collision, diffusion, deposition, etc. Most particles with a particle size less than 5 microns stay in the upper respiratory tract. The particulate matter retained in the nasopharynx and trachea, combined with the harmful gases such as sulfur dioxide entering the human body, stimulates and corrodes the mucosa, damages the mucosa and cilia, causes inflammation and increases airway resistance. Continuous effects can lead to chronic nasopharyngitis and chronic tracheitis.
Therefore, various protective measures must be taken during sandstorms. Individuals should protect themselves and avoid going out as much as possible. First of all, close doors and windows in time, try to avoid riding bicycles outdoors, wear dust-proof clothes, gloves, masks, glasses, etc., and wash your face frequently. Use wet towels, gauze towels, etc. to protect your eyes, mouth, and nose to reduce the inhalation of sand and dust particles.
At the same time, due to sandstorms, the climate will be drier than usual. At this time, particulate matter can easily enter the human body through the cracks in the nasal cavity. Pay attention to drinking more water to enhance the ability to adapt to the environment.
Once chronic cough accompanied by sputum production or shortness of breath, paroxysmal wheezing and chest pain occurs, you need to seek medical treatment as soon as possible, seek help from professional medical staff, and receive corresponding treatment under their guidance.