Dangerous chemicals that are hazardous, corrosive, exploding, burning, and are hazardous to people, facilities and the environment. It is divided into explosives, compressed and liquefied gases, flammable liquids, flammable solids, spontaneous combustion and wet flammable materials, oxidants and organic antioxidants, drugs, radioactive materials and corrosive substances.
Dangerous chemicals as an important means of production of national economic development, and its own high input, high output, the scope of the more and more involved, including manufacturing, mining, energy, transportation, warehousing, construction, Agriculture and other national economy. Hazardous chemical industry (production, storage, transportation, use, operation and disposal) is distributed in 30 provinces, autonomous regions and municipalities other than Tibet. And the vast majority of dangerous chemicals production and storage enterprises located in riverside,near the beach, temporary residential areas and other "vulnerability targets", in the event of production safety accidents, a serious threat to the rivers and lakes of the ecological, the people's health and safety.