國家衛生研究院 NHRI:Item 3990099045/2402

NHRI > National Institute of Environmental Health Sciences > Ming-Tsang Wu(2000-2001) > Periodical Articles > Item 3990099045/2402

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Title:	Assessment of the effectiveness of respirator usage in coke oven workers
Authors:	Wu, MT
Contributors:	Division of Environmental Health and Occupational Medicine
Abstract:	This program protection factor study was conducted to evaluate the effectiveness of filter cartridge respirators while coke oven workers performed their normal work. Benzene soluble fraction (BSF) of total particulate concentrations was measured inside and outside the respirators of nine coke oven workers who worked on the top of the battery of one older coke oven plant and who reported regular use of respirators. The measurements were taken for 3 consecutive days. Excluding two undetectable measurements inside the respirator, it was found that the outside respirator BSF concentrations (25 sets) ranged from 87 to 807 mug/m(3), whereas the inside respirator BSF concentrations ranged from 16 to 509 mug/m(3). A program protection factor (PPF) for each set of observations was calculated as the ratio of outside to inside air BSF concentrations. The mean PPF was 2.5 with a range of 1.1 to 9.6, and 12 of the 25 measurements (48%) were below 2.0. Although the workers claimed they regularly wore their respirators, the wide range and the low PPF findings suggest that worker behavior and respirator fit may influence the level of protection provided by the respirator.
Keywords:	Environmental Sciences;Public, Environmental & Occupational Health
Date:	2002-01
Relation:	AIHA Journal. 2002 Jan;63(1):72-75.
Link to:	http://www.ncbi.nlm.nih.gov/sites/entrez?myncbishare=nhrilib&Db=pubmed&Cmd=DetailsSearch&Term=11843430
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000173742800012
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0036159483
Appears in Collections:	[Ming-Tsang Wu(2000-2001)] Periodical Articles

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