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Cancer villages occur frequently in soil contaminated by heavy metals. Land pollution, especially heavy metal pollution, has brought great hidden dangers to people's lives, that is, life safety is challenged, occupational diseases are high, the mortality rate rises sharply, and the age of death is generally advanced to about 45 years old.
Toxicity in Life: Poor storage of vegetables may lead to toxicity Vegetables stored for too long, in the event of decay and deterioration, nitrate reduction to nitrite, eating vegetables containing too much nitrite, can cause headache, abdominal pain, diarrhea, vomiting and other symptoms.