Coal is the main coal burning on the stove, coal is the chemical elements such as C/H/O/S if, in the condition of incomplete combustion of the coal furnace, it will produce large amounts of toxic gases, harm people’s health, west Zhejiang frontal problems actually we already have the corresponding protective measures, then the after combustion would produce harmful gases, which What are the specific hazards? How to prevent the disease? Xiaobian is briefly introduced as follows:
Sulfur oxides are the main air pollutants after burning coal on hot blast stoves. The stable products of coal combustion are SO2 and SO3, but the content of SO3 is very small. Mainly SO2, sulfur dioxide is a colorless non-flammable toxic gas, with a strong pungent, pungent odor. It mainly damages the upper respiratory tract, because it is easily dissolved in water to form sulfite to stimulate the eye and nasal mucosa, corrosive; Sulfur dioxide solubility in the tissue fluid is very high, so the sulfur dioxide in air inhaled dissolves quickly disappears in the upper respiratory tract, rarely deep into the airway, so only the deep breathing or so2 adsorption in dust particles on the surface is likely to enter the lungs, can produce significant hazards to human health, the nose, and respiratory tract mucous membrane will appear stimulation; Can cause bronchoconstriction and vocal cord spasm, and then nasal bleeding, dyspnea, but also induced bronchitis, pulmonary edema, lung sclerosis and other diseases, and even death.
In addition, SO2 can enhance the carcinogenic effect of the carcinogen benzopyrene.
Long-term exposure to sulfur dioxide people, on the one hand, stimulation of the upper respiratory tract cause reflective bronchial smooth muscle contraction, breathing resistance increases, and respiratory function decline, on the other hand, stimulate mucous membrane, and the loss has thickened the mucosa secretion increased, the cilia movement is blocked, weakened immune function, resulting in a decline in respiratory resistance and induce different levels of inflammation, such as chronic nasopharyngitis, chronic bronchitis, Bronchial asthma, and emphysema. In addition, long-term exposure to sulfur dioxide has a bad effect on cerebral cortical function, which decreases the brain’s labor ability and is not conducive to children’s intellectual development. It is worth noting that SO2 and SO3 combined with water, smoke, and dust to form sulfuric acid smoke and sulfate, resulting in ecological environmental pollution and harm is much greater than a single SO2, its toxic effect can increase 34 times, if the sulfuric acid fog sol particles are heavy metal particles, its stimulation effect is 10 times stronger than that of SO2 alone. Because sulfuric acid aerosol particles can invade the deep tissue of the lung.
