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Waste Management & Research, Vol. 10, No. 1, 99-111 (1992)
DOI: 10.1177/0734242X9201000111

Municipal Solid Waste Incinerator Fly Ash as a Source of Polynuclear Aromatic Hydrocarbons (PAHs) To the Environment

S.R. Wild

Insitute of Environmental and Biological Sciences, Lancaster University, Lancaster, LAI 4YQ

D.J. Mitcheill

Warren Spring Laboratory, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2BX, U.K.

C.M. Yelland

Insitute of Environmental and Biological Sciences, Lancaster University, Lancaster, LAI 4YQ

K.C. Jones

Insitute of Environmental and Biological Sciences, Lancaster University, Lancaster, LAI 4YQ

Arrested fly ash samples from most currently operating municipal solid waste (MSW) incinerators on the U.K. mainland have been analysed for polynuclear aromatic hydrocarbons (PAHs). The ashes have a mean {Sigma}PAH content of about 227 µg kg -1. This is generally lower than concentrations observed in U.K. surface soils. Benzo-[ghi]perylene was the most abundant individual compound, and the most frequently detected. The {Sigma}PAH content of ashes does not appear to be related to incinerator type, but rather it is likely that poor gas phase combustion favours higher PAH levels. The significance of PAHs in ash residues and their possible fate following disposal to landfill are discussed.

Key Words: PAHs • arrested municipal fly ash • sewage sludge fly ash • coal fly ash • landfill


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S. R. Wild and K. C. Jones
The Significance of Polynuclear Aromatic Hydrocarbons Applied To Agricultural Soils in Sewage Sludges in the U.K
Waste Management Research, January 1, 1994; 12(1): 49 - 59.
[Abstract] [PDF]