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How Pesticides Enter the Human Body

How Pesticides Enter the Human Body. Through the Skin or Eyes. skin absorption is the most common absorption continues as long as the pesticide remains in contact with the skin T he eyes is particularly absorbent, because of the amount that can be absorb

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How Pesticides Enter the Human Body

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  1. How Pesticides Enter the Human Body

  2. Through the Skin or Eyes • skin absorption is the most common • absorption continues as long as the pesticide remains in contact with the skin • The eyes is particularly absorbent, because of the amount that can be absorb • As well as the chemical damage to the eye that can occur

  3. Through the Mouth • (usually) is the most severe method • pesticides can be ingested by accident, through carelessness, or intentionally • most frequent cases of accidental oral exposure are those in which pesticides have been placed into a different container • workers handling pesticides can also consume excessive levels of pesticides if they do not wash their hands before eating or smoking.

  4. Through the Lungs • Can cause serious damage to nose, throat and lung tissues • Can be absorbed through the lungs into the bloodstream • The hazard of poisoning from respiratory exposure is great because of the rapid and complete absorption of pesticides through lung tissues

  5. Toxicity varies depending on the type of exposure; dermal, oral or respiratory (inhalation) • The greatest danger is because of the concentration and duration of exposure • The longer a pesticide remains on the skin or in eyes, or the longer it is inhaled, the greater the damage that is likely to result

  6. In addition to route of entry into the body, there are two other ways that exposure is described: short-term (acute) or long-term (chronic) exposure.

  7. single dose or a series of exposures within a short time period (e.g. one day) Acute exposures may be referred to as acute dermal, acute oral or acute inhalation poisoning Usually the effects of acute exposure, if any, occur within 24 hours Acute Exposure

  8. exposure to pesticides over an extended period of time Pesticides that accumulate or break down slowly in body tissues, usually represent the greatest chronic exposure hazard Chronic exposure may be referred to as chronic oral, chronic dermal or chronic inhalation poisoning Chronic Exposure

  9. How are people exposed to pesticides? What are the four potential effects of pesticide exposure? Describe each of the four effects. Questions

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