WorksheetsDDT and POPs
Total questions: 5
Worksheet time: 7mins
What are some differences between the food chain of ospreys and the food chain of northern harriers? How might these differences in the diet of osprey and northern harriers result in exposure to different amounts of DDE?
If the osprey eats 300 g of fish/day and the fish tissue has 0.1 ug DDE/g tissue, how much DDE is the osprey consuming per day?
3 ug
30 ug
300 ug
3000 ug
The eagle eats 300 g food/day, including seals. The seal eats fish that has 1.0 ug DDE/g tissue, but the seal has a lot of blubber (fat) so DDE bioaccumulates to 2 ug/g tissue in the seal. How much DDE does the eagle get if it eats 300 g of seal tissue?
6 ug
60 ug
600 ug
6000 ug
Which of the following species will have the greatest bioaccumulation of DDE? Which will have the least?
Northern harrier
Osprey
Seal
Eagle
The partition coefficient (KOW) of DDT is 1.58 x 106 and benzene is 138. Which chemical will have a higher BCF?
DDT
benzene
