Effects of sewage sludges contaminated with chlorinated aromatic hydrocarbons on sludge-treated areas (soils and sediments).
The fate of PCDDs, PCDFs, and PCBs in sewage sludges after different management techniques--such as agricultural application, land restoration, and marine disposal--was studied. Changes observed in the concentrations, in the ratio between PCDD and PCDF levels, and in the isomeric distribution suggest the influence of the sewage sludge on the sludge-treated areas (soils and sediments). Whereas land application techniques seem to produce no serious environmental consequences, marine disposal practices produce considerable increases in the levels of contamination in marine sediments.
Eljarrat
Ethel
E
Department of Environmental Chemistry, IIQAB, CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain. eeeqam@cid.csic.es
D004784:Environmental Monitoring / Q000379:methods; D019015:Geologic Sediments / Q000032:analysis*; D006841:Hydrocarbons, Aromatic / Q000378:metabolism*; D006843:Hydrocarbons, Chlorinated / Q000378:metabolism*; D012623:Seawater / Q000032:analysis*; D012722:Sewage; D012987:Soil / Q000032:analysis*; D018505:Waste Management / Q000379:methods
D006841:Hydrocarbons, Aromatic; D006843:Hydrocarbons, Chlorinated; D012722:Sewage; D012987:Soil