Industrial Hygiene
and Toxicology #7
Interviews with workers can provide some of the best
information about hazard information. What are four questions workers should be
asked to help evaluate hazards and adequacy of controls?
The number of samples that needs to be collected depends on
three factors. What are those factors?
What is the definition of a “breathing zone?” How is
sampling in the breathing zone achieved?
What are the advantages and disadvantages of grab sampling
(name at least 2 each)?
What are the benefits and limitations of colorimetric
detector tubes (name at least 2 benefits and 3 limitations)?
Far too often, industrial hygienists rely on direct reading
instrument results without understanding all the calibration requirements,
limitations, interferences, and errors potentially associated with a particular
instrument. Discuss some of these factors affecting the results, and what steps
an industrial hygienist should take to ensure the results they are obtaining
are accurate and precise.
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