Plant uptake of pentachlorophenol from sludge-amended soils
- New Mexico State Univ., Las Cruces (USA)
A greenhouse study was conducted to determine the effects of sludge on plant uptake of {sup 14}C-pentachlorophenol (PCP). Plants included tall fescue (Festuca arundinacea Schreb.), lettuce (Latuca sativa L.), carrot (Daucus carota L.), and chile pepper (Capsicum annum L.). Minimal intact PCP was detected in the fescue and lettuce by gas chromatography/mass spectrometry (GC/MS) analysis. No intact PCP was detected in the carrot tissue extracts. Chile pepper was not analyzed for intact PCP because methylene chloride extracts contained minimal {sup 14}C. The 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. Rapid degradation of PCP in the soil apparently limited PCP availability to the plant. Bioconcentration factors (dry plant wt./initial soil PCP concentration) based on intact PCP were < 0.01 for all crops, suggesting little PCP uptake. Thus, food-chain crop PCP uptake in these alkaline soils should not limit land application of sludge.
- OSTI ID:
- 5467132
- Journal Information:
- Journal of Environmental Quality; (United States), Vol. 19:3; ISSN 0047-2425
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
PHENOLS
BIOLOGICAL AVAILABILITY
PLANTS
CONTAMINATION
SEWAGE SLUDGE
GROUND DISPOSAL
CARBON 14 COMPOUNDS
ORGANIC CHLORINE COMPOUNDS
SOILS
TRACER TECHNIQUES
UPTAKE
AROMATICS
BIOLOGICAL MATERIALS
BIOLOGICAL WASTES
CARBON COMPOUNDS
HYDROXY COMPOUNDS
ISOTOPE APPLICATIONS
LABELLED COMPOUNDS
MANAGEMENT
MATERIALS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
SEWAGE
SLUDGES
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
540211* - Environment
Terrestrial- Basic Studies- Radiometric Techniques- (1990-)