You are here:
PLANT UPTAKE OF PENTACHLOROPHENOL FROM SLUDGE-AMENDED SOILS
Citation:
Bellin, C. AND G. O'Connor. PLANT UPTAKE OF PENTACHLOROPHENOL FROM SLUDGE-AMENDED SOILS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-90/450.
Description:
A greenhouse study was conducted to determine the effects of sludge on plant uptake of 14C-pentachlorophenol (PCP). lants included all fescue (Festuca arundinacea Schreb.), lettuce (Latuca sativa L.), carrot (Daucus carota L.), and chile pepper (Capsicum annum I.). Minimal intact PCP was detected in the fescue and lettuce by gas chromatography/mass spectrometry (GC/MS) analysis. o intact PCP was detected in the carrot tissue extracts. hile pepper analyzed for intact PCP because ethylene chloride extracts contained minimal 14c. he GC/MS analysis of soil extracts at harvest suggests a half-life of PCP of about 10 d independent of sludge rate or PCP loading rate. apid degradation of PCP in the soil apparently limited PCP availability to the plant. ioconcentration factors (dry plant wt./initial soil PCP concentration) based on intact PCP were <0.01 for all crops, suggesting little PCP uptake. hus, food-chain crop PCP uptake in these alkaline soils should not limit land application of sludge.