CPA Environmental Safety and Protection 2

Question 1

Which pesticide characteristic most strongly predicts its potential to leach into groundwater?

Accepted Answer

High persistence combined with high water solubility

Answer

High soil adsorption (Koc)

Answer

Low water solubility

Answer

Strong volatility

Question 2

A pesticide label states 'Do not apply within 50 feet of any body of water.' This buffer zone requirement is primarily intended to protect against:

Accepted Answer

Runoff and spray drift reaching aquatic ecosystems

Answer

Drift onto neighboring crops

Answer

Worker re-entry safety

Answer

Groundwater contamination only

Question 3

Which of the following is an example of secondary poisoning from pesticide use?

Accepted Answer

A hawk dies after eating rodents that consumed rodenticide bait

Answer

A bird drinks from a puddle containing a pesticide

Answer

A fish is killed by runoff from a treated field

Answer

A worker is poisoned after handling concentrate without gloves

Question 4

The EPA's Endangered Species Protection Program restricts pesticide use in certain areas to protect listed species. Applicators can find which areas are restricted by consulting:

Accepted Answer

EPA Bulletins Live! Two, a web-based system

Answer

The county extension office bulletin board

Answer

The USDA crop insurance records

Answer

State department of agriculture weekly newsletters

Question 5

When is pesticide runoff into surface water most likely to occur?

Accepted Answer

Shortly after application during heavy rainfall on saturated or compacted soils

Answer

During a drought when soils are hardened and cracked

Answer

Only when pesticides are applied directly to water

Answer

During the night when temperatures are cool

Question 6

Which practice best reduces the risk of pesticides entering storm drains from equipment washing?

Accepted Answer

Rinse equipment in the field or over a vegetated area away from drains

Answer

Wash equipment over a concrete pad that drains to the storm sewer

Answer

Use only water without detergent to rinse equipment

Answer

Wash equipment only on windy days to allow evaporation

Question 7

Which factor most increases the risk of pesticide volatilization causing off-target environmental contamination?

Accepted Answer

High temperatures and low humidity

Answer

Cool temperatures and high humidity

Answer

Overcast skies and moderate wind

Answer

Early morning application with dew present