Journal
INDOOR AND BUILT ENVIRONMENT
Volume 9, Issue 3-4, Pages 192-200Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/1420326X0000900308
Keywords
area sampling; personal sampling; occupational exposure; asbestos abatement; glove-bag
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Air sample data were collected during asbestos abatement of two buildings using area and personal sampling methods. Abatement involved removal of pipe insulation from crawl spaces. The two sampling methods were compared to determine if there was a relationship between them. A relationship was observed between area and personal airborne samples in building 2 as determined by correlation and regression but is most likely due to chance. One major outlier was detected for both area and personal measurement sample data sets in building 2. It was concluded that any relationship between area and personal sample measurements must be viewed with caution. Concentrations measured from personal sampling were statistically higher than those from area sampling. Also, the distributions of concentrations in the samples were calculated to be nonnormal (logarithmic form). It is proposed that area sampling under-estimates worker exposure compared to personal measurements and is not applicable for exposure and hazard assessment. It is suggested that area and personal samples measure two different population concentrations of airborne fibers. Use of area samples in lieu of personal measurements should only be employed with caution. Copyright (C) 2001 S. Karger AG,Basel.
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