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Health hazard evaluation report: HETA-94-0182-2519, Little Blue Valley Sewer District, Independence, Missouri.

Authors
Marlow-DA
Source
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, HETA 94-0182-2519, 1995 Aug; :1-35
NIOSHTIC No.
00230290
Abstract
In response to a confidential request, an investigation was begun into possible hazardous working conditions at the Little Blue Valley Sewer District wastewater treatment facility (SIC-4952), Independence, Missouri. Complaints received included gastrointestinal disturbances, sore throats, fatigue, headaches, eye irritation, and coughing among those working in the belt press room. Personal breathing zone samples for total particulate ranged from 0.03 to 0.28mg/m3. Measurements also indicated a range of 2.50 to 6.82 endotoxin units per cubic meter of air. Sludge samples containing 40% solids had the highest concentrations and largest variety of volatile organic compounds. Analysis indicated that the belt room workers were exposed to hydrogen-sulfide (7783064) at concentrations which exceeded the NIOSH 10 minute ceiling of 10 parts per million (ppm) in eight of 13 breathing zone samples; three also exceeded the OSHA limit of 20ppm. The author concludes that workers were overexposed to hydrogen-sulfide. The author recommends that continuous monitoring be provided for employees in or around the belt press room to evaluate hydrogen-sulfide exposure levels. Engineering controls should be used to reduce hydrogen-sulfide levels. Until the improvements are made, workers should use respiratory protection.
Keywords
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; HETA-94-0182-2519; Hazard-Confirmed; Region-7; Waste-treatment; Occupational-exposure; Endotoxins; Airborne-particles;
CAS No.
7783-06-4
Publication Date
19950801
Document Type
Field Studies; Hazard Evaluation and Technical Assistance
Fiscal Year
1995
NTIS Accession No.
PB96-191789
NTIS Price
A04
Identifying No.
HETA-94-0182-2519
NIOSH Division
DSHEFS
SIC Code
4952
Source Name
National Institute for Occupational Safety and Health
State
MO; OH
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