Quiz Questions: |
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| 1. |
GLI is an acronym for________ |
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Great Lakes Water Quality Initiative |
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Great lakes Quality Implementation |
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| 2. |
PBT is an acronym for which strategy? |
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Persistent, Bio accumulative and Toxic |
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Permeable, Bio accumulative, and Toxic |
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| 3. |
A _________________ is the ratio of the chemical concentration in an organism to the concentration in water, assuming no exposure by food sources. |
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Bio concentration factor (BCF) |
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Bio accumulation factor (BAF) |
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| 4. |
The_______________ represents the ratio of the concentration in an organism to the concentration in water, including both the organism and food sources exposed to the chemical. |
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Bio concentration factor (BCF) |
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Bio accumulation factor (BAF) |
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| 5. |
On page 15 we see this formulae BSAF= (Co/L)/(Cs/OC) |
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Where: |
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L = lipid concentration (glipid/gtissue)
Cs = concentration in sediment (mg/g)
OC = total organic carbon concentration (glipid/gsediment) |
| What does BSAF stand for? |
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Biota-Sediment Accumulation Factor |
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Biological Soil Accumulation Factor |
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| 6. |
DDT is highly lipid soluble (log Kow 6.19), has an extremely long half-life, and therefore, tends to bio accumulate. It was extensively used as an agricultural pesticide and to control vector-borne diseases between 1920 and 1970. |
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True |
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False |
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| 7. |
Arsenic (As) is found in three valence states. |
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Tube |
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False |
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| 8. |
______________ is most commonly found in aquatic environments and can be found dissolved as the free ion, sorbed to minerals, or bound to organic carbon. |
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Nickel (Ni) |
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Mercury (Hg) |
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| 9. |
___________and ___________ are the predominant species in water and can be toxic to aquatic organisms. |
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Selenate and selenite |
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Nickel and mercury |
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| 10. |
Polycyclic aromatic hydrocarbons (or poly nuclear aromatic hydrocarbons) are a large group of chemicals characterized by two or more fused benzene rings, with or without substituted groups attached to the rings. |
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True |
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False |
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| 11. |
Table 4.2 on page 42 represents________ |
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Chemical properties for categorizing PBT chemicals under TSCA |
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Physical properties for categorizing PBT chemicals under TSCA |
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| 12. |
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ARL x BW |
| CR (lim) = |
------------------- in appendix A denotes; |
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CSF x Cm |
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An equation for Carcinogenic chemicals |
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An equation for Non-carcinogenic chemicals |
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| 13. |
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RfD x BW |
| CR (lim) = |
------------------- in appendix A denotes; |
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Cm |
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An equation for Carcinogenic chemicals |
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An equation for Non-carcinogenic chemicals |
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| 14. |
The predicted baseline BCF shall be calculated using the equation:
predicted baseline BCF = KOW (octanol - water partition coefficient) |
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True |
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False |
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| 15. |
Equations 1 and 2 in appendix C represent _________ |
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Equations for calculating the Human Health Bio Accumulation Factor |
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Equations for calculating the Human Health Bio concentration factor |
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