Air pollutants do harm to human body in many ways, such as respiratory system damage, physiological dysfunction, digestive system disorder, nervous system abnormality, mental decline, cancer, disability and so on.
2. Harm to plants:
Air pollutants, especially sulfur dioxide and fluoride, are very harmful to plants. When the concentration of pollutants is high, it will cause acute damage to plants, damage to the surface of plant leaves, or directly cause leaves to wither and fall off; When the concentration of pollutants is not high, it will cause chronic damage to plants, leading to the decline of plant yield and deterioration of quality.
3. Harm to weather and climate:
It makes the air very turbid, blocks sunlight and reduces the amount of solar radiation reaching the ground. Sulfuric acid rain can destroy large areas of forests and crops, corrode and destroy paper products, textiles and leather products, deteriorate metal antirust coatings and reduce their protective effects, and corrode and pollute buildings.
Extended data:
Measures to reduce environmental pollution:
1, cleaner production
First of all, cleaner production refers to the use of non-toxic or low-toxic raw materials with less impurities, the transformation of production processes or equipment, the development of pollution-free and less polluting production technologies, the development of green products, and the reduction of waste emissions per unit output. Macro-control the industrial structure and take adjustment measures such as closing, stopping, merging, transferring and relocating industrial enterprises with high consumption, low efficiency and heavy pollution.
2. Rational utilization of energy and resources
Strengthen the management of industrial production and bring environmental protection into the management track of enterprise production and operation. Save energy and reduce consumption, reduce material loss, recover combustible gas, waste heat and pressure, recover and cross-utilize industrial three wastes, establish a closed production process, realize mechanization, automation and sealing of the production process, improve the equipment operation integrity rate, and prevent running, running, dripping, leaking and accidental discharge;
Improve coal-burning technology, improve combustion efficiency, give priority to the development of low-sulfur and high-quality civil coal, actively develop and adopt pollution-free and less-polluted energy, reform fuel structure, gradually realize gasification and electrification, and expand joint heating or central heating.
3. Waste disposal
The industrial wastes that have no comprehensive utilization value for the time being should be purified. If the flue gas and waste gas are treated by waste gas purification and dust removal technology, they can be discharged after reaching the national emission standards. Municipal solid waste, human and animal manure, sewage, etc. It should be treated harmlessly. Hospital sewage may contain a variety of pathogenic microorganisms and radioactive waste, and it must be disinfected before it can be discharged.