Walden PUBH6034 Module 1 Quiz Latest 2019 November

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PUBH6034 Environmental Health: Local to Global

Module 1 Quiz

Question 1 The quantity of a toxicant (or its breakdown product) that is available to interact with some vulnerable tissue in the body is called the _______________.

Question 2 Fundamentally, any risk assessment for a chemical brings together information on _______________ and information on _______________.

Question 3 The phrase contact with the human envelope is a common definition of _______________.

Question 4 The persistence of a chemical in the environment—for example, in soil or sediment—is often quantified as its _______________.

Question 5 Bioaccumulation is the _______________.

Question 6 Exposure modeling is used to estimate the _______________.

Question 7 An exposure pathway connects _______________ to _______________.

Question 8 The body burden of a chemical in the body reflects the net effect of _______________.

Question 9 If wastes are spilled on the ground within the recharge area of an aquifer, the wastes may _______________.

Question 10 The Ames test is a test of a chemical’s _______________.

Question 11 In doing a risk assessment for a chemical, the usual assumption is that _______________.

Question 12 The three major routes of human exposure to environmental contaminants are _______________.

Question 13 In toxicity testing in rodents, the LD50 is a dose that is _______________.

Question 14 Which of the following is not characteristic of a health impact assessment?

Question 15 In environmental health, the term toxin refers to a toxic substance that _______________.

 

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