PMID- 22014290
OWN - NLM
STAT- MEDLINE
DCOM- 20120409
LR  - 20171116
IS  - 1520-5851 (Electronic)
IS  - 0013-936X (Linking)
VI  - 45
IP  - 24
DP  - 2011 Dec 15
TI  - Vertical and lateral redistribution of POPs in soils developed along a 
      hydrological gradient.
PG  - 10378-84
LID - 10.1021/es200938z [doi]
AB  - Study of the dispersion of persistent organic pollutants (POPs) throughout the 
      environment is necessitated by their toxicological properties and propensity to 
      accumulate in biota. In this study, we use data from the analysis of three 
      (210)Pb dated soil profiles collected along a 30-m hydrological gradient to 
      demonstrate postdepositional mobility of polychlorinated dibenzo-p-dioxins and 
      polychlorinated dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs). We 
      found that (i) humus originating from litter exposed to surface fallout during 
      the 1960-1970s contains the highest concentrations of PCDD/Fs and PCBs in the 
      O-horizon of the soils; (ii) accumulation rates of PCDD/Fs and PCBs in the 
      O-horizon ( approximately 5.0 and  approximately 210 mug m(-2) yr(-1)) constituted only 9.1% and 3.5%, 
      respectively, of the measured annual input, demonstrating that a minor fraction 
      of the deposited material is retained within the O-horizon; (iii) POP inventories 
      in the upper 0.5-0.9 m of the mineral soil constituted a considerable part 
      (40-70%) of the total pool stored in the soil, implying significant vertical 
      translocation of atmospheric derived POPs; and (iv) increasing downslope 
      inventories of POPs suggest a lateral downward transport of POPs from uphill 
      soils. The findings challenge the commonly accepted view that POPs fallout is 
      effectively retained within O-horizons.
FAU - Bergknut, Magnus
AU  - Bergknut M
AD  - Department of Chemistry, Umea University, SE-901 87 Umea, Sweden. 
      magnus.bergknut@chem.umu.se
FAU - Wiberg, Karin
AU  - Wiberg K
FAU - Klaminder, Jonatan
AU  - Klaminder J
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20111129
PL  - United States
TA  - Environ Sci Technol
JT  - Environmental science & technology
JID - 0213155
RN  - 0 (Benzofurans)
RN  - 0 (Dibenzofurans, Polychlorinated)
RN  - 0 (Organic Chemicals)
RN  - 0 (Polychlorinated Dibenzodioxins)
RN  - 0 (Soil)
RN  - 0 (Soil Pollutants)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
SB  - IM
MH  - Benzofurans/analysis/chemistry
MH  - Dibenzofurans, Polychlorinated
MH  - Environmental Monitoring
MH  - Geological Phenomena
MH  - Kinetics
MH  - Organic Chemicals/*analysis/chemistry
MH  - Polychlorinated Biphenyls/analysis/chemistry
MH  - Polychlorinated Dibenzodioxins/analogs & derivatives/analysis/chemistry
MH  - Soil/*chemistry
MH  - Soil Pollutants/*analysis/chemistry
EDAT- 2011/10/22 06:00
MHDA- 2012/04/10 06:00
CRDT- 2011/10/22 06:00
PHST- 2011/10/22 06:00 [entrez]
PHST- 2011/10/22 06:00 [pubmed]
PHST- 2012/04/10 06:00 [medline]
AID - 10.1021/es200938z [doi]
PST - ppublish
SO  - Environ Sci Technol. 2011 Dec 15;45(24):10378-84. doi: 10.1021/es200938z. Epub 
      2011 Nov 29.