Dioxin is a type of POP and 90% of dioxin in the atmospheric environment comes from the incineration of municipal and industrial waste. Wood, petroleum products and all types of waste, especially medical waste containing gasoline and coal, easily produce dioxins at combustion temperatures. The production of polyvinyl chloride plastic, paper, chlorine and some pesticides, and the smelting of steel can release dioxins into the environment. There are three main ways to cause dioxins: First, in the combustion process of vinyl chloride, when the combustion temperature is below 800℃, the chlorine waste cannot burn completely, which is easy to generate dioxins. Second, other materials containing chlorine and carbon such as paper, wood products and food waste generate dioxins with the catalyzing action of copper, cobalt and other metal ions. Third, dioxin is derivatized in the production of chemicals, including pesticides, especially chlorine-containing chemicals, such as pesticides, herbicides, wood preservatives, deciduous agents, polychlorinated biphenyls and other products. In addition, if the TV is not cleaned in time, the dust accumulated inside it is usually taken over by dioxin bromide. And the content is higher, with an average of 4.1 micrograms of brominated dioxins per gram. Although dioxin comes from local sources, its environmental distribution is global. Almost all media in the world have been found with dioxins. The place where these compounds accumulate most is soil, sediments and foods, in particular dairy products, meat, fish and shellfish (Griffin, 1986). Its content is very low in plants, water and air. Dioxins mainly pollute air, soil and water, and then pollute animals, plants and aquatic organisms. People are mainly injured by air, water and... medium of paper... pg, and many national standards were 10 pg, the US Environmental Protection Agency standard was 0.01 pg , and some countries set other target standards in addition to this standard. Several suggestions mentioned above are inseparable from monitoring, which suggests that dioxin analysis is the fundamental link of dioxin pollution prevention. Works Cited Andersen, M. E., Mills, J. J., Gargas, M. L., Kedderis, L., Birnbaum, L. S., Neubert, D., & Greenlee, W. F. (1993). Modeling receptor-mediated processes with dioxin: implications for pharmacokinetics and risk assessment. Risk Analysis, 13(1), 25-36.Griffin, R.D. (1986). A new theory on the formation of dioxin in the combustion of municipal solid waste. Chemosphere, 15(9), 1987-1990.Mocarelli, P., Brambilla, P., Gerthoux, P.M., & Needham, L.L. (1997). Change in sex ratio with dioxin exposure. The Lancet, 348(9024), 409.