In July 2006, a chemical company located in Guoxiang, near the South Ring Road in Suzhou, moved, leaving 20 mu of toxic land, which caused six road builders to be unconscious while digging.
Before the Spring Festival in 2007, during the construction of Heshan plot in Wuhan, workers were poisoned and rushed to the hospital for emergency treatment. This place originally belonged to Wuhan pesticide plant.
However, few toxic places are exposed to the light, and more toxic places are still quietly threatening people's health without the knowledge of the government and residents. And the harm of poisonous land to human body often takes ten years or decades to appear. Ralph Canal, once an industrial dump in the United States, was covered by landfill at 1953 and developed into a large number of houses and a school. Twenty-four years later, during the period of 1977, local residents frequently suffered from diseases such as abortion of pregnant women, premature death of children, infant malformation, epilepsy, rectal bleeding, etc., and only after investigation did the truth come out.
Facing the problem of new pollution in toxic land, China lacks both the compulsory pollution assessment procedure before relocation and the handling mechanism of who pollutes who is responsible after the incident, and generally presents a passive coping state of "where there is a problem, where to deal with it".
Under the background of the rapid development of urbanization, the potential risk of poisonous land is greatly aggravated. Therefore, it is urgent to conduct a comprehensive and thorough investigation on the real situation of existing and newly-added poisonous sites in China, including the area, pollution degree, treatment, development and reuse, and on this basis, solve hidden worries through legislation, economic and environmental treatment.