Heavy metal accumulation in small mammals following sewage sludge application to forests. [Sorex trow-bridgii, Neurotrichus gibbsii, Peromyscus maniculatus]
- Virginia Water Control Board, Richmond (USA)
- Univ. of Washington, Seattle (USA)
The application of sewage sludge to forested land as a fertilizer may result in the transfer of heavy metals from sludge to wildlife. Levels of four heavy metals (Cd, Pb, Zn, and Cu) were measured in livers and kidneys of insectivorous Trowbridge's shrews (Sorex trowbridgii) and shrew-moles (Neurotrichus gibbisii), and granivorous deer mice (Peromyscus maniculatus) from sludge-treated and untreated sites at Charles Lathrop Pack Forest, located near Eatonville, WA. Heavy metal levels were higher in the organ of Trowbridge's shrews from sludge-treated areas than in those from untreated areas. Only Cd was elevated in both organs of the deer mouse. Shrew-moles from sludge-treat sites had higher levels of Cd and Pb, but not Zn or Cu, than those from untreated sites. In general, heavy metal levels in the three species from control sites at Pack Forest were similar to levels found in animals from five other control sites in western Washington. Samples of liver and kidney tissue from Trowbridge's shrews were examined for evidence of heavy metal-induced lesions. Despite the high levels of heavy metals found in Trowbridge's shrews, no lesions were found in their organs.
- OSTI ID:
- 6997979
- Journal Information:
- Journal of Environmental Quality; (USA), Journal Name: Journal of Environmental Quality; (USA) Vol. 18:3; ISSN JEVQA; ISSN 0047-2425
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
540220 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
BIOLOGICAL ACCUMULATION
BODY
CADMIUM
CONTAMINATION
COPPER
DIGESTIVE SYSTEM
ELEMENTS
FERTILIZERS
FORESTS
GLANDS
GROUND DISPOSAL
KIDNEYS
LEAD
LIVER
MAMMALS
MANAGEMENT
METALS
ORGANS
SEWAGE
SEWAGE SLUDGE
SLUDGES
TRANSITION ELEMENTS
USES
VERTEBRATES
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
ZINC