In the process of transforming nature and creating material wealth, especially in the 20th century, with the development of organic chemical industry and the rapid growth of oil and gas production, chemical pollution has become increasingly prominent and environmental problems have become increasingly serious. It is undeniable that the research results of chemical science and the application of chemical knowledge have made great contributions to promoting human progress, and chemistry and its products have penetrated into all fields of human life, production and national economy. On the other hand, with the mass production and wide application of chemicals, it has brought black sewage, yellow smoke and dust, colorful waste residue and invisible colorless poisons to the original green and peaceful ecological environment of mankind. In the atmosphere, there are smog incidents in Mas Valley, Donora and London. In particular, the smog incident in London, which killed the most people, killed more than 4oo people in five days. The reason is that the sulfur dioxide produced by coal combustion is converted into sulfuric acid mist, which makes people feel chest tightness, cough and vomiting, and the elderly and infirm die. 1956, 13 Minamata Bay in Kumamoto Prefecture was polluted by mercury-containing wastewater discharged from chemical plants, causing Minamata disease, making some people numb and insane, sleeping soundly for a while and dying of extreme excitement for a while. Environmental pollution is threatening people's health and the sustainable development of the natural environment on which human beings depend. How to protect the natural environment on which we live has become a concern and consideration of all countries in the world. So chemistry has brought us both advantages and disadvantages. We should make good use of chemistry from the perspective of sustainable development.
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