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Use of downdraft booth design in removing toxic dusts from protective clothing.

Authors
Dungey-CE
Source
Proceedings of the symposium on occupational health hazard control technology in the foundry and secondary non-ferrous smelting industries, December 10-12, 1979, Chicago, Illinois. Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 81-114, 1981 Aug; :358-366
Link
NIOSHTIC No.
00174966
Abstract
A downdraft booth, with compressed air nozzles for cleaning clothes, was designed, constructed and evaluated for its efficiency in cleaning protective clothing as compared to the vacuuming method. The booth was intended to remove lead (7439921) and arsenic (7440382) dust from protective clothing before workers enter lunchroom or changehouse areas. One booth was built outside the lead and arsenic work areas of the Cottrell Department at the copper (7440508) smelter, adjacent to a lunchroom. All the required personal protective equipment, including respiratory protection, was cleaned in the booth while worn. For two weeks during the day shift while the booth was used and for two weeks while the workers' clothes were vacuumed, airborne and settled arsenic levels in the lunchroom were monitored. Very small differences in contamination levels when using either of the two methods were measured in airborne arsenic samples. The differences were not statistically significant. Breathing zone air samples collected while employees used the booth were higher during the vacuuming, as expected. No difference was found between wipe samples collected during vacuuming and those collected during the booth use. The author concludes that the results show that the downdraft booth can be as effective as vacuuming in reducing the contamination and also takes less time and is less cumbersome.
Keywords
NIOSH-Contract; Contract-210-79-0048; Airborne-dusts; Arsenic-compounds; Lead-dust; Smelting; Vacuum-cleaning-systems; Workplace-studies
CAS No.
7439-92-1; 7440-38-2; 7440-50-8
Publication Date
19810801
Document Type
Conference/Symposia Proceedings
Fiscal Year
1981
NTIS Accession No.
NTIS Price
Identifying No.
(NIOSH) 81-114
NIOSH Division
DPSE
Source Name
Proceedings of the symposium on occupational health hazard control technology in the foundry and secondary non-ferrous smelting industries, December 10-12, 1979, Chicago, Illinois
State
OH
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