Montrose Chemical Corporation of California, Torrance, California. Task II. Monochlorobenzene survey report of the plant contact.

Details

• Personal Author:
  Cohen JM ; Diamond P
• Description:
  In order to determine whether additional industrial hygiene surveys to quantify worker exposure to monochlorobenzene (108907) (MCB) were justifiable, a study was undertaken at a DDT manufacturing facility in Torrance, California, where MCB was used in the manufacture of DDT. Very low concentrations of MCB were identified in the background airborne levels near the facility. Of the 135 persons employed at this facility, 14 to 16 individuals may have been exposed to MCB. This included those workers involved in MCB receiving areas and DDT rework areas. Exposure levels which were recorded were below the threshold limit value. DDT was produced in a fairly open structure with both natural and forced ventilation to keep worker exposures to a low level. The potential for MCB exposure was greatest when a quality control sample was taken and when DDT scrap was added to the rework area. During a simulation of the rework operation, a short duration concentration of 6.58 parts per million was obtained. The potential did exist for short term, higher levels of exposure. The potential for exposure to DDT (50293) far outweighed the potential for exposure to MCB. The authors conclude that additional studies should be made at the facility, emphasizing DDT exposures.
• Subjects:
  Accidents, Occupational Air Pollutants, Occupational Air Pollution Chemistry Environmental Exposure Hazardous Substances Occupational Health Particulate Matter Quality Control Risk Assessment Risk Factors Safety Skin Workplace

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• Keywords:
  Agricultural-chemicals Air-quality-monitoring Chemical-industry-workers Chemical-manufacturing-industry Chlorinated-benzenes Chlorinated-hydrocarbons Field-Study IWS-100-10 NIOSH-Author NIOSH-Survey Organic-solvents Pesticides Region-9

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• Publisher:
  National Institute for Occupational Safety and Health
• Document Type:
  Text
• Funding:
  Contract
• Genre:
  Field Studies ; Industry Wide
• Place as Subject:
  California ; Ohio ; OSHA Region 5 ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DSHEFS - Division of Surveillance, Hazard Evaluations, and Field Studies
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-25
• NIOSHTIC Number:
  nn:00179849
• Citation:
  Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, IWS 100-10, 1977 Jun; :1-25
• CAS Registry Number:
  Chlorobenzene (CAS RN 108-90-7) ; DDT (CAS RN 50-29-3)
• Federal Fiscal Year:
  1977
• Performing Organization:
  Stanford Research Institute, Menlo Park, California
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:6746d094023511a946f4ce0953ccc44335e1e1163beea6f78f9b25f83fa147aedff9603e66645602bfa2582caacbff9d0304cfccfd066eda97df94ca47f99c64
• Download URL:
  https://stacks.cdc.gov/view/cdc/180061/cdc_180061_DS1.pdf
• File Type:
  [PDF - 1.46 MB ]