Characterization of airborne BTEX exposures during use of lawnmowers and trimmers

Few studies have evaluated airborne exposures to benzene, toluene, ethylbenzene, and xylenes (BTEX) during operation of two-stroke and four-stroke small engines, such as those in lawn maintenance equipment. Full-shift, 8-hour personal samples were collected during a simulation study to characterize...

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Published in:Archives of environmental & occupational health 2019-07, Vol.74 (4), p.197-205
Main Authors: Avens, Heather J., Maskrey, Joshua R., Insley, Allison L., Unice, Kenneth M., Reid, Rachel C. D., Sahmel, Jennifer
Format: Article
Language:English
Subjects:
Air Pollutants
Benzene
Benzene Derivatives - analysis
BTEX
Environmental Monitoring
Ethylbenzene
exhaust
Exposure
Exposure limits
fueling
gasoline
Iran
Lawnmowers
Mowing
Occupational exposure
Occupational Exposure - analysis
Occupational health
small engines
Toluene
Toluene - analysis
Trimming
Xylenes - analysis
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container_title Archives of environmental & occupational health
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creator Avens, Heather J.
Maskrey, Joshua R.
Insley, Allison L.
Unice, Kenneth M.
Reid, Rachel C. D.
Sahmel, Jennifer
description Few studies have evaluated airborne exposures to benzene, toluene, ethylbenzene, and xylenes (BTEX) during operation of two-stroke and four-stroke small engines, such as those in lawn maintenance equipment. Full-shift, 8-hour personal samples were collected during a simulation study to characterize yard maintenance activities including mowing, trimming, and fueling. Short-term, 15-minute personal samples were collected to separately evaluate mowing and trimming exposures. Mean 8-hour time weighted average (TWA) BTEX concentrations were 2.3, 5.8, 0.91, and 4.6 ppb, respectively (n = 2). Mean 15-minute TWA BTEX concentrations were 1.6, 1.8, 0.22, and 1.3 ppb, respectively, during mowing and 1.2, 3.6, 0.68, and 3.3 ppb, respectively, during trimming (n = 3 per task). Measured BTEX concentrations during fueling were 20-110, 61-310, 8-41, and 40-203 ppb, respectively (n = 2, duration 2-3 minutes). These exposure concentrations were well below applicable US occupational exposure limits.
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subjects Air Pollutants
Benzene
Benzene Derivatives - analysis
BTEX
Environmental Monitoring
Ethylbenzene
exhaust
Exposure
Exposure limits
fueling
gasoline
Iran
Lawnmowers
Mowing
Occupational exposure
Occupational Exposure - analysis
Occupational health
small engines
Toluene
Toluene - analysis
Trimming
Xylenes - analysis
title Characterization of airborne BTEX exposures during use of lawnmowers and trimmers
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