What are the dangers of haze

The Lancet, a medical journal, reported that air pollution deaths in China rose to fourth place among the 67 disease killers in 2012. The hazy weather is the most visual manifestation of the air being heavily polluted. What are the hazards of hazy weather? What is the impact of hazy weather on people's quality of life?

Impact on respiratory health

The composition of haze is very complex, and the main health hazards are aerosol particles less than 10 microns in diameter, such as sea salt, sulfate, nitrate, fuel and automobile exhaust, which can directly enter and adhere to the human respiratory tract and alveoli. The submicron particles can even be deposited in the upper and lower respiratory tracts and alveoli, causing acute rhinitis and acute bronchitis, among others. For patients who already suffer from lung diseases such as chronic bronchitis, obstructive emphysema and chronic obstructive pulmonary disease and other chronic respiratory diseases, hazy weather can lead to acute attacks or acute aggravation of the condition. There is also the possibility of inducing lung cancer if you are in a hazy environment for a long time.

Affect the health of the cardiovascular system

Hazy weather air is dirty, harmful fine particles, such as heavy metals, polycyclic aromatic hydrocarbons, etc., low air pressure, decreased oxygen content, coupled with low temperature stimulation, easily lead to vascular spasm, blood pressure fluctuations, increased heart load, headaches and other cardiovascular disease symptoms.

Affect the absorption of calcium

Hazy days block sunlight and weaken the ultraviolet rays in the near-earth layer. Lacking sunlight, the human body surface cannot synthesize cholesterol in the skin into vitamin D, which in turn affects the body's absorption and utilization of calcium and phosphorus. This is detrimental to the growth of infants and young children who need a lot of calcium.

Impact on traffic

The most direct harm of severe haze weather is to cause low visibility, which directly endangers the traffic safety of highways, railroads, aviation and shipping, and is prone to traffic jams, traffic accidents and flight delays.

Affects mental health

I believe that many people have the feeling that they feel comfortable in clear weather, but easily depressed in rainy weather. Scientific studies have shown that hazy weather, weaker light, lower ambient air pressure, will disrupt the human nervous system, easy to make people mentally lazy, depressed, causing pessimism, and easy to lose control of things that do not go well.

Hinder outdoor fitness

Hazy weather in the air with more harmful fine particles, which is very unfavorable for people who have outdoor fitness habits, especially in medium and large cities. If the morning exercise in hazy weather is prone to chest tightness, tight gas, increased blood pressure, and easily induced cardiovascular disease. Hazy weather cuts off this way for people in big cities to achieve health through outdoor exercise.