1. Do not linger for too long in spaces with leakage or high content of tetrachloroethylene, as tetrachloroethylene has anesthetic and toxic effects on the human body.
2. Tetrachloroethylene has extremely high stability and a high proportion. If discarded casually, it will seep into the bottom of the water and pollute the water source. Therefore, it is best to treat it uniformly in a unified location.