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Health hazard evaluation report: HETA-89-278-2035, Twin City Fruit, F.L. Thorpe Co., Deadwood, South Dakota.

Authors
Hales-TR; Gunter-B
Source
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HETA 89-278-2035, 1990 Apr; :1-20
NIOSHTIC No.
00194759
Abstract
In response to a request from the South Dakota Health Department, an evaluation was made of possible exposure to methylene-bisphenyl- diisocyanate (101688) (MDI) among employees of Thorpe's, a jewelry facility (SIC-3911) located in a warehouse owned by Twin City Fruit in Deadwood, South Dakota. At this facility gold was casted, soldered, buffed, finished, packaged, and shipped. The facility employed 85 women and two men in two rooms of the warehouse basement. Insulation was applied by spraying MDI and polyol in a 1:1 mixture onto the warehouse ceiling, walls, and basement rooms adjacent to the jewelry facility. Five days after insulation spraying ceased, seven of 16 area samples had detectable quantities of MDI, but all were below NIOSH's recommended exposure limit of 50 micrograms/cubic meter. It was not possible to estimate the concentration of MDI in the jewelry facility during the spraying application. Thirteen employees had probable MDI induced respiratory disease. Of these 13, one had respiratory symptoms persisting at least 6 days after the exposure and four had symptoms 2 months later. All blood tests for allergy to MDI were negative. Inadequate isolation procedures during the spraying operation were cited as the cause of these difficulties. The authors conclude that MDI exposure probably occurred during the application of the insulation material.
Keywords
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; HETA-89-278-2035; Hazard-Confirmed; Region-8; Isocyanates; Respiratory-system-disorders; Hypersensitivity;
CAS No.
101-68-8
Publication Date
19900401
Document Type
Field Studies; Hazard Evaluation and Technical Assistance
Fiscal Year
1990
NTIS Accession No.
PB91-118927
NTIS Price
A03
Identifying No.
HETA-89-278-2035
NIOSH Division
DSHEFS
SIC Code
3911
Source Name
National Institute for Occupational Safety and Health
State
SD; OH
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