Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Industrial Hygiene Study at the Anvil Points Oil-Shale-Fines Fire
Air sampling studies were conducted prior to and during extinguishing operations on a subsurface oil shale pile fire. The fire consisted of a smoldering pile of raw oil shale fines at the Paraho Oil Shale Corporation near Anvil Points, Colorado. Initial field measurements of airborne contaminants were made to evaluate potential exposures associated with the fire and to provide input for the extinguishment plan relative to worker protection. Gas and vapor concentrations at a fissure at the top of the pile were considerably higher than at a fissure midway down the side of the pile. Removal of the top of the pile by bulldozer proved to be very dusty and hazardous because of the heavy equipment traversing the surface of the pile over fissures and near hot spots. It was then decided to use a high-pressure water stream to wash the overburden to the bottom of the pile and extinguish hot spots. The heavy equipment then moved the cooled material from the base of the pile to the prepared dump site. Air samples during extinguishment operations were taken from the ledge formed by the initial extinguishment attempt and at the fissures that opened up on this ledge. Dust samples were collected by cascade impactor and measured. Carbon monoxide, hydrogen sulfide, and sulfur dioxide, although present in high concentrations at the fissure openings, were less than detectable at the breathing zone. Formaldehyde detected at up to 8 ppM at the top fissure initially was less than detectable at the lower fissures during extinguishment. Total hydrocarbons present at over 1000 ppM at the fissure openings diminished to <1 to 30 ppM at the breathing zone. Polynuclear aromatic hydrocarbons (PAH) associated with particulates were less than or equal to 17.5 ng/m exp 3 and PAH associated with vapors were even lower at less than or equal to 0.2 ng/m exp 3 . These studies indicate a very low probability for significant exposures to extinguishment or support personnel.
Industrial Hygiene Study at the Anvil Points Oil-Shale-Fines Fire
Air sampling studies were conducted prior to and during extinguishing operations on a subsurface oil shale pile fire. The fire consisted of a smoldering pile of raw oil shale fines at the Paraho Oil Shale Corporation near Anvil Points, Colorado. Initial field measurements of airborne contaminants were made to evaluate potential exposures associated with the fire and to provide input for the extinguishment plan relative to worker protection. Gas and vapor concentrations at a fissure at the top of the pile were considerably higher than at a fissure midway down the side of the pile. Removal of the top of the pile by bulldozer proved to be very dusty and hazardous because of the heavy equipment traversing the surface of the pile over fissures and near hot spots. It was then decided to use a high-pressure water stream to wash the overburden to the bottom of the pile and extinguish hot spots. The heavy equipment then moved the cooled material from the base of the pile to the prepared dump site. Air samples during extinguishment operations were taken from the ledge formed by the initial extinguishment attempt and at the fissures that opened up on this ledge. Dust samples were collected by cascade impactor and measured. Carbon monoxide, hydrogen sulfide, and sulfur dioxide, although present in high concentrations at the fissure openings, were less than detectable at the breathing zone. Formaldehyde detected at up to 8 ppM at the top fissure initially was less than detectable at the lower fissures during extinguishment. Total hydrocarbons present at over 1000 ppM at the fissure openings diminished to <1 to 30 ppM at the breathing zone. Polynuclear aromatic hydrocarbons (PAH) associated with particulates were less than or equal to 17.5 ng/m exp 3 and PAH associated with vapors were even lower at less than or equal to 0.2 ng/m exp 3 . These studies indicate a very low probability for significant exposures to extinguishment or support personnel.
Industrial Hygiene Study at the Anvil Points Oil-Shale-Fines Fire
M. Gonzales (Autor:in) / L. L. Garcia (Autor:in) / G. W. Royer (Autor:in) / E. A. Vigil (Autor:in) / M. I. Tillery (Autor:in)
1981
33 pages
Report
Keine Angabe
Englisch
Environmental Health & Safety , Air Pollution & Control , Public Health & Industrial Medicine , Oil shale fines , Paraho process , Combustion products , Hot spots , Fires , Biological effects , Occupational safety , Inhibition , Solid wastes , Personnel , Sampling , Dusts , Amines , Formaldehyde , Polycyclic aromatic hydrocarbons , Gas chromatography , Hydrogen sulfides , Carbon monoxide , Carbon dioxide , Nitrogen dioxide , Sulfur dioxide , Experimental data , Hydrocarbons , ERDA/500200 , ERDA/040700
Fire-resistance of no-fines concrete walls
| Engineering Index Backfile | 1954
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Industrial cleaning and hygiene
TIBKAT | 1985; 2.1986; damit Ersch. eingest.