Lapel air sampling - Honest opinion

[Ragreen1@nwohio.com]

RA>Do you feel that lapel air sampling provides an adequate sample of
RA>breathing zone air or is grab sampling better ?

RA>Phillip Llewellyn
RA>plllewellyn@tva.gov


As long as you are dealing with particulates; you correct for the
difference between breathing rate and sampling rate; and  use activity
on filter , not concentration, the
comparable< factor of 2-3> with bioassay results.

Regis A. Greenwood, C H P
ragreen1@nwohio.com
              OR
ragreenwood@tol-ed.com

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let alone my opinions. results are