Which of the following is not characteristic of a health impact assessment?
Question 1
- In environmental health, the term toxin refers to a toxic substance that _______________.
| [removed] | is naturally produced by a plant or animal | |
| [removed] | occurs in the occupational setting | |
| [removed] | results from human activity | |
| [removed] | a man-made product introduced into the environment due to human activity |
1 points
Question 2
- In toxicity testing in rodents, the LD50 is a dose that is _______________.
| [removed] | acutely fatal to 50 percent of test animals | |
| [removed] | fatal to 50 percent of test animals within a 90-day period | |
| [removed] | fatal to 50 percent of test animals after lifetime bioaccumulation |
1 points
Question 3
- Which of the following is not characteristic of a health impact assessment?
| [removed] | It evaluates a site or activity as it is, rather than looking forward in time | |
| [removed] | It includes social and economic factors in the assessment | |
| [removed] | It incorporates input from community members |
1 points
Question 4
- An exposure pathway connects _______________ to _______________.
| [removed] | an exposure / a change in tissue structure or function | |
| [removed] | inhalation / absorption | |
| [removed] | the environmental source of a contaminant / the point of exposure |
1 points
Question 5
- The three major routes of human exposure to environmental contaminants are _______________.
| [removed] | by air, water, and soil | |
| [removed] | environmental, occupational, and residential | |
| [removed] | ingestion, inhalation, and dermal contact |
1 points
Question 6
- The phrase contact with the human envelope is a common definition of _______________.
| [removed] | absorption | |
| [removed] | disposition | |
| [removed] | exposure |
1 points
Question 7
- The quantity of a toxicant (or its breakdown product) that is available to interact with some vulnerable tissue in the body is called the _______________.
| [removed] | absorbed dose | |
| [removed] | biologically effective dose | |
| [removed] | body burden |
1 points
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