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Resistance to pesticides fluorine rubber o-rings, is made by a fluorine rubber o-rings, is primarily concerned with fluorine rubber o-rings, the inside of the pesticide resistance performance and other complex chemical performance. Pesticide is chemicals, specifically: those who used to prevention and control of plant diseases and pests, weeds and harmful creatures such as agriculture, forestry and and generally referred to as the pesticide chemical of regulating plant growth.Pesticides are toxic, the use of pesticides has brought great pollution to the environment, the serious influence the health of human beings.However, due to the occurrence of diseases and pests, and the need to use pesticides to kill.
Pesticide harm to human body three forms: the major forms of acute poisoning, chronic, "three" to the hazards
1, acute pesticide poisoning and called out through the mouth, suck or contact with a large number of inside the body, in a short period of time show the acute pathological response to acute poisoning.Acute poisoning often cause nerve paralysis and death, and even killed large area and becomes one of the most obvious pesticide.  
2, long-term exposure to chronic hazards or eating food containing pesticide residues, can make the pesticide constantly accumulate in the body, a potential threat to human body health, can affect the nervous system, damage to the liver function, cause physiological disorders, affect the reproductive system, produce deformity geek, lead to cancer.  
3, carcinogenic, teratogenic and mutagenic international agency for research on cancer, according to animal experiments confirmed the carcinogenicity of 18 kinds of widespread use of pesticides has obvious, there are 16 kinds of shows potential carcinogenic risk.  
It is estimated that the United States related to pesticides on the number of cancer patients which accounts for 10% of the total number of cancer patients.During the Vietnam war, the americans in Vietnam defoliant sprayed with a lot of plants, causing a lot of contact with defoliant of American soldiers and civilians in Vietnam has cancer, genetic defects, and other diseases.  
Which two bromine chloride can cause male infertility, animals have carcinogenic and mutagenic action.Cyhexatin, reaching have teratogenic effects on animals.Two bromine ethane can make the teratogenic, mutagenic people and animals.Chlordimeform has potential carcinogenic threat to the people, the animals have the effect that cause cancer.  
Which is associated with long-term exposure to pesticides in cancer, the evidence is one of the most non-hodgkin's lymphoma, multiple myeloma, leukemia and soft tissue sarcoma.But there is also evidence that: long-term exposure to pesticides farmers can also with other kinds of cancer.There are two farmers in epidemiology investigation shows that long-term exposure to pesticides obviously high incidence of live.

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