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HHE Report No. HETA-84-117-1696, Martin Marietta Michoud Operations, New Orleans, Louisiana.

Authors
McConnell-RS; Markel-HL
Source
NIOSH 1986 May:19 pages
Link
NIOSHTIC No.
00163546
Abstract
Workers at the Martin Marietta Michoud Operations Facility (SIC- 3769), New Orleans, Louisiana requested an evaluation of asthma and liver function test abnormalities among workers in the Thermal Protection System (TPS) insulation areas with potential exposures to diphenylmethane-diisocyanate (101688) (MDI) and solvents. Three cases of probable MDI induced asthma were identified. There was no detectable group decline in one second forced expiratory volume associated with MDI exposure. In general, environmental levels of MDI in company records were below 25ppm. Respiratory protection was worn by operators and sprayers where MDI was present. In the final assembly area 9 of 103 workers had abnormal serum liver enzyme concentrations. The authors conclude that it is probable that some employees developed asthma as a result of exposure to MDI. Recommendations include informing workers of possible health hazards, clearly indicating the 25 foot hazard radius to be avoided during processes using MDI, reducing the 20 parts per billion permissible exposure limit ceiling for MDI currently in use, transfer workers who have isocyanate provoked asthma to other areas of the facility, carefully investigating any cases of job related illness for possible additional cases, and developing and implementing a monitoring strategy.
Keywords
NIOSH-Author; HETA-84-117-1696; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; Region-6; Pulmonary-system-disorders; Respiratory-irritants; Lung-disorders; Organic-solvents; Isocyanates; Hepatotoxicity; Liver-damage; Enzyme-activity; Hazard-Confirmed;
CAS No.
101-68-8;
Publication Date
19860501
Document Type
Hazard Evaluation and Technical Assistance;
Fiscal Year
1986
NTIS Accession No.
PB87-105557
NTIS Price
A03
Identifying No.
HETA-84-117-1696
NIOSH Division
DSHEFS;
Priority Area
Pulmonary-system-disorders
SIC Code
3769;
Source Name
Hazard Evaluations and Technical Assistance Branch, NIOSH, U.S. Department of Health and Human Services, Cincinnati, Ohio, Report No. HETA-84-117-1696, 19 pages, 14 references
State
LA; OH;
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