Record Display for the EPA National Library Catalog
RECORD NUMBER: 42 OF 55
|OLS Field Name||OLS Field Data|
|Main Title||Sludge organics bioavailability. /|
|Author||Eiceman, G. A. ; Bellin, C. A. ; Ryan, J. A. ; O'Connor, G. A.|
|CORP Author||Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. ;New Mexico State Univ., Las Cruces. Dept. of Agronomy and Horticulture.|
|Publisher||Environmental Protection Agency, Risk Reduction Engineering Laboratory,|
|Additional Subjects||Sewage sludge ; Sludge disposal ; Organic compounds ; Soil contamination ; Biological effects ; Toxic substances ; Polychlorinated biphenyls ; Plants(Botany) ; Path of pollutants ; Farm crops ; Concentration(Composition) ; Plant metabolism ; Bioaccumulation ; Degradation ; Reprints ; Phthalic acid/di(ethylhexyl-ester) ; Phenol/pentachloro ; Phenol/dinitro|
Concern over the bioavailability of toxic organics that can occur in municipal sludges threatens routine land application of sludge. Available data, however, show that concentrations of priority organics in normal sludges are low. Sludges applied at agronomic rates yield chemical concentrations in soil-sludge mixtures 50 to 100 fold lower. Plant uptake at these pollutant concentrations (and at much higher concentrations) is minimal. Chemicals are either (1) accumulated at extremely low levels (PCBs), (2) possibly accumulated, but then rapidly metabolized within plants to extremely low levels (DEHP), or (3) likely degraded so rapidly in soil that only minor contamination occurs (PCP and 2,4-DNP).
Includes bibliographical references. Microfiche.