PMID- 15952370 OWN - NLM STAT- MEDLINE DCOM- 20050912 LR - 20240109 IS - 0013-936X (Print) IS - 0013-936X (Linking) VI - 39 IP - 10 DP - 2005 May 15 TI - Long-term fate of polychlorinated biphenyls and polycyclic aromatic hydrocarbons in an agricultural soil. PG - 3663-70 AB - Laboratory studies are useful for understanding the behavior of persistent organic pollutants (POPs) in soil, although such investigations do not always relate directly to field conditions. Outdoor lysimeter studies may be used to overcome this problem. This work aimed to investigate the behavior of two polycyclic aromatic hydrocarbons (PAHs) (fluoranthene and benzo[a]pyrene) and two polychlorinated biphenyls (PCBs; congeners 28 and 52) in soil, using lysimeters established in 1990 atthe Agrosphere Institute (Forschungszentrum Julich GmbH, Germany). The two PAHs were in one lysimeter, and the PCBs were in a second lysimeter. Afurther aim of the study was to determine soil half-lives for each of the contaminants. The overall decline in PAH concentrations was considerably greater than forthe PCBs over the 152 month study. The PCBs exhibited greater chemical extractability than the PAHs and were demonstrated to have migrated through the soil column to a greater extent than the PAHs. Loss of PCBs from surface soil was not considered to have been congener specific for the two PCB congeners in this study. The two PAHs varied in their extents of total loss and movement through the soil column. Soil half-lives were determined as 10.9 y for [12C]PCB 28, 11.2 yr for [12C]PCB 52, 2.7 yr for benzoqpyrene, and 32 d (phase 1) to 38 yr (phase 2) for fluoranthene. These are shown to disagree with some previous estimates of POP half-lives in soil, suggesting that previous studies underestimated persistence by 10-fold or more. FAU - Doick, Kieron J AU - Doick KJ AD - Department of Environmental Science, Institute of Environmental and Natural Sciences, Lancaster University, Lancaster LA1 4YQ, United Kingdom. FAU - Klingelmann, Eva AU - Klingelmann E FAU - Burauel, Peter AU - Burauel P FAU - Jones, Kevin C AU - Jones KC FAU - Semple, Kirk T AU - Semple KT LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Environ Sci Technol JT - Environmental science & technology JID - 0213155 RN - 0 (Carbon Radioisotopes) RN - 0 (Fluorenes) RN - 0 (Soil) RN - 0 (Soil Pollutants) RN - 3417WMA06D (Benzo(a)pyrene) RN - 360UOL779Z (fluoranthene) RN - 7440-44-0 (Carbon) RN - 844ODP31Q0 (2,4,4'-trichlorobiphenyl) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Agriculture MH - Benzo(a)pyrene/*analysis/metabolism MH - Beta vulgaris/chemistry/metabolism MH - Carbon/analysis/metabolism MH - Carbon Radioisotopes/analysis/metabolism MH - Crops, Agricultural/*chemistry/metabolism MH - Environmental Monitoring MH - Fluorenes/*analysis/metabolism MH - Half-Life MH - Polychlorinated Biphenyls/*analysis/metabolism MH - Soil/analysis MH - Soil Pollutants/analysis/metabolism MH - Triticum/chemistry/metabolism MH - Vegetables/chemistry/metabolism EDAT- 2005/06/15 09:00 MHDA- 2005/09/13 09:00 CRDT- 2005/06/15 09:00 PHST- 2005/06/15 09:00 [pubmed] PHST- 2005/09/13 09:00 [medline] PHST- 2005/06/15 09:00 [entrez] AID - 10.1021/es048181i [doi] PST - ppublish SO - Environ Sci Technol. 2005 May 15;39(10):3663-70. doi: 10.1021/es048181i.