CPA Environmental Impact & Regulations 2 — Questions and Answers
Question 1: Which federal law establishes tolerances (maximum residue limits) for pesticides in food?
- Federal Food, Drug, and Cosmetic Act (FFDCA) (Correct answer)
- Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA)
- Clean Water Act (CWA)
- Safe Drinking Water Act (SDWA)
Correct answer: Federal Food, Drug, and Cosmetic Act (FFDCA)
The FFDCA authorizes EPA to set tolerances for pesticide residues on food and feed commodities.
Question 2: A pesticide label states 'Do not apply within 50 feet of any water body.' This buffer zone requirement is primarily intended to protect against:
- Pesticide runoff and spray drift into aquatic habitats (Correct answer)
- Human exposure during application
- Soil compaction near waterways
- Equipment corrosion from moisture
Correct answer: Pesticide runoff and spray drift into aquatic habitats
Buffer zones near water bodies are established to reduce pesticide runoff and drift that could harm aquatic organisms.
Question 3: Under FIFRA, who bears the primary legal responsibility for ensuring a pesticide is used according to its label?
- The certified applicator using the product (Correct answer)
- The pesticide manufacturer
- The retail store selling the product
- The EPA regional office
Correct answer: The certified applicator using the product
FIFRA places legal responsibility on the user — the certified applicator — to follow all label directions.
Question 4: Bioaccumulation of a pesticide is most likely to occur in which type of compound?
- Lipophilic (fat-soluble) organochlorines (Correct answer)
- Water-soluble carbamates
- Volatile organophosphates
- Inorganic sulfur compounds
Correct answer: Lipophilic (fat-soluble) organochlorines
Lipophilic, persistent compounds like organochlorines accumulate in fatty tissues and concentrate up the food chain.
Question 5: Which practice best reduces pesticide contamination of groundwater through leaching?
- Avoiding applications before heavy rain and using soil-binding formulations (Correct answer)
- Increasing application rate to finish quickly before rain
- Applying pesticides only during drought conditions
- Using granular formulations exclusively in all situations
Correct answer: Avoiding applications before heavy rain and using soil-binding formulations
Avoiding pre-rain applications and choosing formulations that bind to soil particles significantly reduces leaching to groundwater.
Question 6: The term 'non-target organism' refers to:
- Any organism that the pesticide was not intended to control (Correct answer)
- Pest species that have developed resistance
- Organisms listed on the pesticide label
- Beneficial insects that are exempt from regulation
Correct answer: Any organism that the pesticide was not intended to control
Non-target organisms are species unintentionally exposed to a pesticide, including beneficial insects, wildlife, and plants.
Question 7: A Restricted Use Pesticide (RUP) designation by EPA indicates that the product:
- May cause unreasonable adverse effects without additional regulatory restrictions (Correct answer)
- Is approved only for organic farming operations
- Can only be used indoors
- Has no re-entry interval requirements
Correct answer: May cause unreasonable adverse effects without additional regulatory restrictions
EPA designates a pesticide as RUP when it poses risks of unreasonable adverse effects to applicators, the public, or the environment without added restrictions.
CPA Environmental Impact & Regulations 2
Which federal law establishes tolerances (maximum residue limits) for pesticides in food?