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Title: Runoff from coal piles: effects on the environment and the public's health

Thesis/Dissertation ·
OSTI ID:5911451

The use of coal for fuel in place of oil and natural gas has been increasing in the US. Typically, users store their reserves of coal outdoors in large piles and rainfall on the coal creates runoffs which may contain materials hazardous to the environment and the public's health. To study this hazard, rainfall on model coal piles was simulated, using deionized water and four coals of varying sulfur content. The simulated surface runoffs were collected during 9 rainfall simulations spaced 15 days apart. The runoffs were analyzed. The runoffs from the high-sulfur coals and the lignite exhibited extremes of pH (acidity), specific conductance, chemical oxygen demand, and total suspended solids; the low-sulfur coal runoffs did not exhibit these extremes. Without treatment, effluents from these high-sulfur coals and lignite would not comply with federal water quality guidelines. Most extracts of the simulated surface runoffs contained at least 10 organic compounds including polycyclic aromatic hydrocarbons. All extracts were clastogenic. Extracts of runoffs from the high-sulfur coals were both clastogenic and cytotoxic; those from the low-sulfur coal and the lignite were less clastogenic and not cytotoxic. These data suggest a relationship between the sulfur content of a coal, its mutagenicity and also its clastogenicity.

OSTI ID:
5911451
Resource Relation:
Other Information: Thesis (Ph. D.)
Country of Publication:
United States
Language:
English