Pesticides In The Environment

Question 1

Persistence vs mobility

Answer 1

Persistence
- how long pesticide sticks around in the environment

Mobility
- polar vs non polar move around in the environment different amounts

Question 2

2 ways that pesticides dissipate in soil

Answer 2

Movement
- leaching
- runoff
- moves with eroded soil

Degradation
- bio/photo/chemical degradation

Question 3

Factors affecting spray drift

Answer 3

• wind
• spray nozzle
• distance to the ground

Question 4

What’s global distillation?

Answer 4

1. Pesticides move into atmosphere
2. Atmospheric currents carry pesticides north
3. Falls out of atmosphere
4. Pesticides enter arctic food chain

Question 5

Biocencentration

Answer 5

Pesticide buildup in fat of organism by direct ingestion

Question 6

Biomagnification

Answer 6

Pesticide buildup in fat because of the food chain