Pesticide residuals

Question 1

Residues

Answer 1

Small amount of a chemical or its breakdown products which remain in or on a product

Question 2

Benefits of residuals

Answer 2

Long term control of pests

Question 3

Types of residue benefit used

Answer 3

Stored grain

Pre emergent weed control

Question 4

Reasons for concern of residues

Answer 4

Damage to non target organisms
Location where there is potential damage- 1080
Level of damage is unacceptable

Question 5

Potential adverse affects of residues

Answer 5

Human and animal health effects
Environ contamination
Feed stuffs
Damage to following crops - group B

Question 6

Source of residues Direct

Answer 6

Over aplication
Tooclose to harvest
Incorrect product used
Presticde drift

Question 7

Sources of residues Indirect

Answer 7

Plant takes up residue from soil from prev yr
Animal uptake
Contamination from silo wall

Question 8

Level of residue impact depends on

Answer 8

Initial dose
Time after exposure (witholding period)
Enviro COnditons

Question 9

Assessement of residues

Answer 9

Toxicological evaluation
Maximum residue limit
Dietry Exposure Evaluation

Question 10

Toxocological Evaluation

Answer 10

No observable effect limit
No adverse residue
Acceptable Daily limit
Uncertainty level - 1/100th of NOEL
MRL max residue limit

Question 11

Dietry Exposure Evaluation

Answer 11

DAFF
Gives confidence
Determine risk to public health