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MASSACHUSETTS PESTICIDE APPLICATOR CORE EXAM LATEST ACTUAL EXAM ALL 400 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES RATED 100% $15.49   Add to cart

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MASSACHUSETTS PESTICIDE APPLICATOR CORE EXAM LATEST ACTUAL EXAM ALL 400 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES RATED 100%

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  • MASSACHUSETTS PESTICIDE APPLICATOR
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  • MASSACHUSETTS PESTICIDE APPLICATOR

Chronic health effect Problems that develop over a relatively long period of time, following either one significant exposure that initiates a problem, or following a series of small exposures which accumulate in some manner and result in a development of a disease or disorder acute toxicit...

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  • November 15, 2024
  • 79
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • MASSACHUSETTS PESTICIDE APPLICATOR
  • MASSACHUSETTS PESTICIDE APPLICATOR
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MASSACHUSETTS PESTICIDE APPLICATOR
CORE EXAM LATEST 2024-2025 ACTUAL
EXAM ALL 400 QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES
RATED 100%
Chronic health effect


✓ Problems that develop over a relatively long period of time, following

either one significant exposure that initiates a problem, or following a

series of small exposures which accumulate in some manner and result

in a development of a disease or disorder




acute toxicity


✓ Poisoning from a single dose over a much shorter duration of time




How soon do health effects occur from accrue toxicity?


✓ Within 24 hours of exposure




Chronic health risk problems (major examples)


✓ Mutagenicity, oncogenicity, carcinogenicity, teratogenicity,

neurotoxicity




Master01 | November, 2024/2025 | Latest update

, 1|Page | © copyright 2024/2025 | Grade A+

Mutagenicity


✓ Ability of a substance or agent to cause mutations to genes or

chromosomes




Changes from mutagenicity are...


✓ Almost always harmful




Tests to detect mutagenicity


✓ Varied. Tests on cells to tests on whole animals




It's believed that chemicals that cause mutations are more likely to be ones

that can also cause...


✓ Cancers




Why is mutation testing used as a first screen for new compounds?


✓ Faster and cheaper than animal lifetime testing




Oncogenicity


✓ The ability of a chemical to cause abnormal growths or tumors in tissues




Master01 | November, 2024/2025 | Latest update

, 1|Page | © copyright 2024/2025 | Grade A+

Carcinogenicity


✓ Ability of a substance or agent to cause malignant tumors




How do they test chemicals for their ability to cause tumors


✓ Administering daily doses to animals for their entire lifetime and then

dissecting them to detect presence of tumors in the animals tissues




A rodent carcinogenicity study takes how long typically?


✓ 2-3 years




Pesticide companies are required to submit test data on oncogenicity from....


✓ Several animal species




There are currently how many pesticide active ingredients considered

known, likely, or probable carcinogens


✓ Over 70




MDAR


✓ Massachusetts Department of Agricultural Resources




Master01 | November, 2024/2025 | Latest update

, 1|Page | © copyright 2024/2025 | Grade A+

Act to protect children and families from harmful pesticides


✓ Passed in 2000. Pesticide products that contain carcinogens may not

be used in or around schools, daycares, or after school programs




Teratogenicity


✓ Ability of a substance to cause abnormal growth or deformity in

developing fetuses (birth defects)




How is teratogenicity tested


✓ Administering doses of chemical to female test animals at various

stages of pregnancies and observing number of miscarriages and

defective offspring verses what would normally be expected




Examples of animals used to test teratogenicity


✓ Rodents, rabbits, dogs, monkeys




Effects of chemicals are usually considered significant for teratogenicity if...


✓ They occur at doses not toxic by themselves to the mother




Testing for teratogenicity is standard part of pesticide registration although

___________ May exist for older chemicals

Master01 | November, 2024/2025 | Latest update

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