Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Montrose Chemical Corporation of California, Torrance, California. Task II. Monochlorobenzene survey report of the plant contact, report no. IWS-100-10.

Authors
Cohen-JM; Diamond-P
Source
NIOSH 1977 Jun; :1-25
Link
NIOSHTIC No.
00179849
Abstract
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.
Keywords
NIOSH-Author; NIOSH-Survey; Field-Study; IWS-100-10; Region-9; Chlorinated-hydrocarbons; Chemical-manufacturing-industry; Pesticides; Agricultural-chemicals; Chemical-industry-workers; Air-quality-monitoring; Organic-solvents; Chlorinated-benzenes
CAS No.
108-90-7; 50-29-3
Publication Date
19770607
Document Type
Industry Wide
Fiscal Year
1977
NTIS Accession No.
PB88-221874
NTIS Price
A03
Identifying No.
IWS-100-10
NIOSH Division
DSHEFS
Source Name
Stanford Research Institute, Menlo Park, California, Report No. IWS-100-10, 25 pages, 1 reference
State
CA
TOP