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Correlation analysis of workplace air-sampling data collected at coal gasifiers

Author
Scripsick, R. C.
Published
United States : [publisher not identified], 1982
Springfield, Va.: National Technical Information Service, [approximately 1982]
Physical Description
microfiche : negative ; 11 x 15 cm
Additional Creators
Brink, E. J. and Sherman, R. J.

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Summary
Several simultaneous sets of air samples for hydrogen sulfide, carbon monoxide, cyclohexane extractable particles, and cyclohexane extractable vapors were collected at two coal gasifiers. The cyclohexane extracts were analyzed to determine the air concentrations of six polycyclic aromatic hydrocarbon (PAH) fractions in addition to determining total extractable levels. Estimates of air concentrations were examined to determine the correlation between set elements. Results of this analysis were used to evaluate set elements as possible indicator substances for monitoring worker exposure to process fugitive emissions. In general, set elements of the same physical state, either particulate or vapor, correlated better with each other than with elements of unlike states. The potential indicator relationships found in the study relate individual PAH fractions to other individual PAH fractions of the same physical state and to the total PAH fractions of the same physical state. No correlation was found between levels of materials measured and either CO or cyclohexane extractable levels. H/sub 2/S levels were below minimum measurable levels of 0.5 ppM so that no correlation determination could be made between H/sub 2/S and other materials measured. These results suggest that CO is probably not a suitable indicator substance for the conditions studied. The use of individual PAH fractions as indicators of other individual PAH fraction levels and of total PAH fraction levels was found to be technically feasible, but of limited value.
Report Numbers
DE83002311; LA-9145-MS
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: W-7405-ENG-36
OSTI Identifier 6708302
Research organization: Los Alamos National Lab., NM (USA).
View MARC record | catkey: 47328671