Coal liquefaction: recent findings in occupational safety and health. Technical report
Technical Report
·
OSTI ID:5785420
Two coal liquefaction pilot facilities were surveyed to determine worker exposure to low concentrations of polynuclear-aromatic-hydrocarbons (PNAs) and aromatic-amines. One facility used the donor solvent (DS) process and the other used the DS/catalytic hydrogenation (DS/CH) process. Area samples taken at the two facilities indicated the presence of 29 PNAs and benzene (71432), toluene (108883), xylene (1330207), aniline (62533), N,N-dimethylaniline (121697), 2,4-dimethylaniline (95681), p-nitroaniline (100016), o-toluidine (95534), o-anisidine (90040) and p-anisidine (104949). Total PNA exposure of workers was the sum of the concentration of the 29 PNAs. PNA exposure was greater for workers of the DS process. Of the PNAs, 97 percent were 2 and 3 ring PNAs and 3 percent were 4 and 5 ring PNAs. Exposure concentrations for field technicians at the DS facility were less than 0.02, 0.1, and 0.04 for benzene, toluene and xylene, respectively. Concentrations of aromatic amines were below OSHA standards. Total particulates ranged from 0.7 to 10 milligrams per cubic centimeter. Noise levels were below 85 to 90 decibels. The authors conclude that coal liquefaction materials contain potentially hazardous and biologically active substances many of which have not been characterized as to their composition and health effects.
- Research Organization:
- National Inst. for Occupational Safety and Health, Rockville, MD (USA); Enviro Control, Inc., Rockville, MD (USA)
- OSTI ID:
- 5785420
- Report Number(s):
- PB-81-223422
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
016000* -- Coal
Lignite
& Peat-- Health & Safety
560306 -- Chemicals Metabolism & Toxicology-- Man-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AMINES
ANILINE
AROMATICS
BENZENE
COAL LIQUEFACTION PLANTS
HAZARDS
HEALTH HAZARDS
HYDROCARBONS
INDUSTRIAL MEDICINE
INDUSTRIAL PLANTS
MEDICINE
OCCUPATIONAL SAFETY
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
POLYCYCLIC AROMATIC HYDROCARBONS
SAFETY
SAMPLING
TOLUENE
TOLUIDINES
TOXICITY
XYLENES
016000* -- Coal
Lignite
& Peat-- Health & Safety
560306 -- Chemicals Metabolism & Toxicology-- Man-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AMINES
ANILINE
AROMATICS
BENZENE
COAL LIQUEFACTION PLANTS
HAZARDS
HEALTH HAZARDS
HYDROCARBONS
INDUSTRIAL MEDICINE
INDUSTRIAL PLANTS
MEDICINE
OCCUPATIONAL SAFETY
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
POLYCYCLIC AROMATIC HYDROCARBONS
SAFETY
SAMPLING
TOLUENE
TOLUIDINES
TOXICITY
XYLENES