That's basically right. Urban land environmental restoration is a new industry, so I don't want to talk about the chaos inside. Simply put, there is no law enforcement, practitioners have no skills, and buyers have no trust. Because every piece of land is affected by the original factory production, the specific pollution hazard is hard to say. Simply put, there are two ways of pollution. One is upward pollution, where pollutants enter the human body through dust, or organic pollutants directly volatilize and enter the human body and other organisms through breathing; A downward pollution, which brings pollutants fixed in soil into groundwater through rainfall, etc. , thus spreading pollution. As for injuries, I think the injuries suffered by homeowners should only rank third. The first is the original employees. After all, they are the people closest to the pollution source. In the past, the production methods lacked protective measures and their safety awareness was weak, which would be the most harmful. The second is the construction workers, who will release the "demons" hidden in the soil. The concentration of pollutants just released may be high, and then the concentration will become smaller and smaller, and the harm will gradually decrease; The third is the tenant, but the tenant may live for a long time, and the harm cannot be ignored.
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