What are the main types of environmental pollution?

The process from clean to dirty is called pollution. Due to human factors, the environment is polluted by harmful substances, and the pollution that adversely affects the growth and reproduction of organisms and the normal life of human beings is called environmental pollution. The types of environmental pollution can be divided into the following types according to different reasons: according to environmental factors: air pollution, water pollution and soil pollution; According to human activities: industrial environmental pollution, urban environmental pollution, agricultural environmental pollution; According to the nature of pollution: chemical pollution, biological pollution, physical contamination (noise, radioactivity, heat, electromagnetic waves, etc. ), solid waste pollution, energy pollution. Environmental pollution endangers human health and survival and causes ecological damage, such as desertification, forest destruction and grassland degradation.

Air pollution refers to the fact that some substances are involved in the atmosphere due to human activities or natural processes, and show sufficient concentration in sufficient time, thus endangering human comfort, health and welfare or endangering the environment. The air pollutants in China mainly come from the burning of fossil fuels, followed by industrial production processes and transportation. At present, the main air pollutants in China are soot and sulfur dioxide.

Water pollution refers to the phenomenon that the chemical, physical, biological or radioactive characteristics of water body change due to the intervention of certain substances, thus affecting the effective use of water, endangering human health or destroying the ecological environment, and leading to the deterioration of water quality. Pesticides and fertilizers are widely used in rural areas of China, plus some seriously polluted enterprises, such as small pulp and paper mills, textile printing and dyeing mills, small fertilizer plants, breweries and electroplating plants. , causing serious pollution to the water environment.

In addition, large-scale deforestation in the middle and lower reaches of the Yangtze River in China has caused serious soil erosion. In recent years, the suspended matter in the Yangtze River has doubled, and the organic matter and nutrients have also increased accordingly, and the water quality of the Yangtze River has become worse and worse. Now there are serious floods everywhere, thus polluting water sources, all of which are related to large-scale deforestation and water pollution.

Soil pollution is the most difficult to deal with (relative to air pollution and water pollution). I hope everyone will take care of the environment everywhere, minimize the generation of garbage, use less or no pesticides with large residues, and switch to environmentally friendly pesticides. Plastics contaminated by domestic garbage: plastic bags used in shopping malls and markets, plastic packaging of commodities, disposable polystyrene fast food lunch boxes, plastic tableware and cups and plates, foaming fillers for electrical packaging, plastic bottles, cold drink skins, disposable plastic tablecloths used in restaurants, etc.