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HHE Report No. HETA-85-029-1675, J.R. Simplot Company, Helm, California.

Authors
Belanger-P
Source
NIOSH 1986 Mar:10 pages
Link
NIOSHTIC No.
00163143
Abstract
Following a request from a Chemical Workers Union representative concerning excessive dust exposures at the J.R. Simplot Company (SIC- 2874), Helm, California, total nuisance dust air concentrations were measured during fertilizer, ammonium-sulfate (7783202) and ammonium- phosphate (7783280, 7722761), bagging and bulk loading. Four samples showed nuisance dust concentrations ranging from a no dust concentration to 0.38 milligrams per cubic meter (mg/m3), none of which exceeded the CAL-OSHA standard of 10.0mg/m3. At a follow-up survey, six environmental air samples collected ranged from 2.55 to 11.1 mg/m3, one of which exceeded the CAL-OSHA nuisance dust standard. The author concluded that a potential health hazard exists due to nuisance dusts. The greatest potential for exposure occurs when the front end loader operator quickly dumps the fertilizer from the loader onto the floor grating, creating a dust cloud. It was recommended that the front end loader should be reminded to slowly dump the fertilizer onto the floor grating to help control dust generation; that a method be devised to remind the operator to turn off the wax atomizer spray system to control dust exposure when the conveyor line is turned on to do bulk loading of fertilizer; that workers close the screen doors after inspecting or cleaning the screens; and employees who wear disposable respirators be qualitatively fit tested to assure a good face to piece seal.
Keywords
NIOSH-Author; HETA-85-029-1675; NIOSH-Health-Hazard-Evaluation; Hazard-Confirmed; Fertilizer-industry; Ammonium-compounds; Phosphates; Sulfates; Dust-control; Respiratory-protection; Region-9; NIOSH-Technical-Assistance-Report;
CAS No.
7783-20-2;
Publication Date
19860301
Document Type
Hazard Evaluation and Technical Assistance;
Fiscal Year
1986
NTIS Accession No.
PB86-221322
NTIS Price
A02
Identifying No.
HETA-85-029-1675
NIOSH Division
DSHEFS;
SIC Code
2874;
Source Name
Hazard Evaluations and Technical Assistance Branch, NIOSH, U.S. Department of Health and Human Services, Cincinnati, Ohio, Report No. HETA-85-029-1675, 10 pages, 4 references
State
CA; OH;
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