Water pollution: The pollutants discharged by human production and life activities exceed the background content of the substance in water and the self-purification ability of water body, which causes adverse changes in the physical, chemical and biological properties of water body, affects the normal production and life of human beings and destroys the ecological balance, and water pollution occurs.
Noise pollution: refers to the sound produced when the vocal body vibrates irregularly, which will have a negative impact on people's hearing and health, not only damaging their hearing, but also interfering with people's daily life and work.
Air pollution: mainly includes carbon dioxide, chlorofluorocarbons, carbon monoxide, nitrogen oxides, sulfur dioxide, ozone, hydrocarbons and dust. They come from different sources, such as pollutants released by factories, cars and power plants. These pollutants will form fine particles and suspend in the air, which will have a serious impact on human health.
Air pollution: it will have a measurable impact on human health, animals and plants, materials, atmospheric characteristics or environmental aesthetics, and will also have an impact on the growth and reproduction of animals and plants. In addition, air pollution will lead to deterioration of materials and buildings, thus causing economic losses. In a word, air pollution is a phenomenon that seriously affects human health and environmental quality, and needs to be paid enough attention and preventive measures.
Radiation pollution refers to environmental pollution caused by infrared radiation, ionization and electromagnetic radiation. Microwave ovens, wireless routers and other household appliances will produce certain radiation. Electromagnetic radiation pollution is one of the important environmental pollution, which is harmful to human body. The greater the output power of the electromagnetic radiation source, the shorter the wavelength, the higher the frequency, the closer it is to the radiation source, the longer the exposure time, the higher the ambient temperature and humidity, and the greater the impact and harm to human body.