Airborne asbestos take-home exposures during handling of chrysotile-contaminated clothing following simulated full shift workplace exposures.
The potential for para-occupational, domestic, or take-home exposures from asbestos-contaminated work clothing has been acknowledged for decades, but historically has not been quantitatively well characterized. A simulation study was performed to measure airborne chrysotile concentrations associated with laundering of contaminated clothing worn during a full shift work day. Work clothing fitted onto mannequins was exposed for 6.5 h to an airborne concentration of 11.4 f/cc (PCME) of chrysotile asbestos, and was subsequently handled and shaken. Mean 5-min and 15-min concentrations during active clothes handling and shake-out were 3.2 f/cc and 2.9 f/cc, respectively (PCME). Mean airborne PCME concentrations decreased by 55% 15 min after clothes handling ceased, and by 85% after 30 min. PCM concentrations during clothes handling were 11-47% greater than PCME concentrations. Consistent with previously published data, daily mean 8-h TWA airborne concentrations for clothes-handling activity were approximately 1.0% of workplace concentrations. Similarly, weekly 40-h TWAs for clothes handling were approximately 0.20% of workplace concentrations. Estimated take-home cumulative exposure estimates for weekly clothes handling over 25-year working durations were below 1 f/cc-year for handling work clothes contaminated in an occupational environment with full shift airborne chrysotile concentrations of up to 9 f/cc (8-h TWA).
Cardno ChemRisk, Boulder, Colorado, USA.
Jennifer
J
Sahmel
Cardno ChemRisk, Boulder, Colorado, USA.
Christy A
CA
Barlow
Cardno ChemRisk, San Francisco, California, USA.
Shannon
S
Gaffney
Cardno ChemRisk, Boulder, Colorado, USA.
Heather J
HJ
Avens
Cardno ChemRisk, Aliso Viejo, California, USA.
Amy K
AK
Madl
Cardno ChemRisk, Sanibel, Florida, USA.
John
J
Henshaw
Cardno ChemRisk, Pittsburgh, Pennsylvania, USA.
Ken
K
Unice
Cardno ChemRisk, San Francisco, California, USA.
David
D
Galbraith
Cardno ChemRisk, Pittsburgh, Pennsylvania, USA.
Gretchen
G
DeRose
RJ Lee Group, Monroeville, Pennsylvania, USA.
Richard J
RJ
Lee
RJ Lee Group, Monroeville, Pennsylvania, USA.
Drew
D
Van Orden
RJ Lee Group, Monroeville, Pennsylvania, USA.
Matthew
M
Sanchez
RJ Lee Group, Monroeville, Pennsylvania, USA.
Matthew
M
Zock
Cardno ChemRisk, Jackson, Wyoming, USA.
Dennis J
DJ
Paustenbach
D000395:Air Pollutants, Occupational / Q000032:analysis*; D017632:Asbestos, Serpentine / Q000032:analysis*; D004784:Environmental Monitoring; D006801:Humans; D019570:Inhalation Exposure / Q000032:analysis*; D016273:Occupational Exposure / Q000032:analysis*; D052638:Particulate Matter / Q000032:analysis*; D011481:Protective Clothing
D000395:Air Pollutants, Occupational; D017632:Asbestos, Serpentine; D052638:Particulate Matter