Chapter 6 Flashcards
Example of pesticide poisoning
disruption of persons nervous system
Example of pesticide injury
chemical burn or tissue damage
Example of allergic effects
individual bases affliction from reaction of the body to an ingredient within a pesticide product
Contact effects
appear right wear pesticide touched the body
Systemic effects
arise at sites other than wear the pesticide entered the body
Acute effects
occur within 24 hours after an exposure
Delayed effects
appear a day or more after an acute exposure
Chronic effects
occur after chronic exposure
reversible effects
skin rash, redness, nausea, eye irritation and dizziness
irreversible effects
birth defects, mutations and cancer damage to the nervous system
acute toxicity
ability to cause harm within 24 hours after an exposure
chronic toxicity
ability to cause harm after many exposures
what is meant by LD50 and LC50-
LD50- lethal dose 50%- dose of toxicant to kill 50% of animal pop. of test animals under standard conditions ex. LD50 of 200 ppm
LC50 is the lethal concentration where 50% of the test pop. dies ex. LC50 of 20 mg/l
lower the amount, higher the toxicity
Signal word of Caution or no signal word
Toxicity category IV
slight concern for skin, eye, or respiratory injury
toxicity concern- slight to none (over 1 pint or 1 pint)
Signal word of Caution
Slightly toxic
Toxicity category III
Mild skin , eye or respiratory injury
medium to large dose could cause death illness or skin eye or respitory damage (1 ounce to 1 pint or 1 pound)
