Toxicology Problem Set
Problem 2: Hazards and sources
For help to answer the question:
One of the items below is a hazardous substance. Four are sources of a hazardous substances. Which one is a hazardous substance?
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A.
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clogged furnace
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B.
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cigarette
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C.
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a dog
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D.
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paint applied before 1978
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E.
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dust mite parts
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Tutorial
A hazardous substance is one that causes harm to our health. Hazards must come from a source. Some common hazards and their sources are:
| Hazard: |
Source: |
| animal dander |
fur-bearing animals, such as dogs or cats |
| carbon monoxide |
broken appliances that incompletely burn natural gas or oil, such as furnaces or stoves |
| dust mite particles |
dust mites living in beds, carpets, curtains, furniture |
| lead |
paint applied before 1978, batteries, water pipes |
| mercury |
thermometers, filling in teeth, batteries |
| mold spores |
molds which are found especially in damp places like showers |
| tobacco smoke |
lighted cigarettes or cigars |
The Southwest Environmental Health Sciences Center
The Biology Project
The University of Arizona
Tuesday, September 16, 1997
Contact the Development Team
http://www.biology.arizona.edu
All contents copyright © 1997. All rights reserved.
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