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Polychlorinated biphenyls (PCBs) are commonly used as cooling fluids for electrical transformers.
True
False
Question 2
Match the abbreviation for an environmental criterion with its media or receptor.
A. Drinking water
B. Sediment
C. Soil
——————————————————————————–
select A B C 1. MCL
select A B C 2. PRG
select A B C 3. PEC
Question 3
Herbicides are the most abundant type of agricultural pesticide in use by weight.
True
False
Question 4
DDT is a?
A.Chlorinated organic pesticide
B.Organophosphate pesticide
C.PCB
D.PAH
Question 5
Which chemical is a potential endocrine disrupter?
A.DDT
B.PCBs
C.PAHs
D.Dioxins
E.All of the above
F.None of the above
Question 6
Which is a persistent organic pollutant?
A.Mercury
B.Benzene
C.DDT
D.Arsenic
Question 7
Which factor is NOT important in affecting the environmental mobility of organic compounds?
A.Molecular weight
B.Solubility in water
C.Water hardness
D.Volatility
E.Polarity
Question 8
Briefly discuss major environmental toxicological differences between metals and organic compounds.
Question 9
In terms of copper toxicity at the Ely Mine Superfund site, describe how bioreceptors may be affected through the various pathways that we studied this session. Discuss humans and fish separately and specifically.
Question 10
Discuss the advantages and disadvantages of DDT in modern society.
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