Adequate Uncertainty Factor for Exposure Limit

Craig Thompson ctho461 at ecy.wa.gov
Fri Oct 6 14:52:39 EST 1995


am879 at FreeNet.Carleton.CA (Lawrence Segal)
writes:

> I am currently reviewing information concerning a proposed
> occupational exposure limit for an industrial chemical.

[snip]

Let me ask some perhaps foolish questions:

Can levels of the chemical be reliably detected at levels of 0.075 or  
less? (1/4th of the company's proposal).

Does the chemical have an odor threshold (or odor) below the proposed
TWA?

Would exposure be ingestion, inhalation, dermal?

That is, I suppose, is the chemical a gas, a liquid, a solid?

Some exposures can be more easily limited than others.

Craig
________________________________________________________
+ Craig Thompson            |  The above is NOT the     +
+ WA State Dept of Ecology  |  opinion of my employer - +
+ ctho461 at ecy.wa.gov        |  But SHOULD be !!!        +





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