PMID- 15992603
OWN - NLM
STAT- MEDLINE
DCOM- 20051027
LR  - 20171116
IS  - 0045-6535 (Print)
IS  - 0045-6535 (Linking)
VI  - 60
IP  - 7
DP  - 2005 Aug
TI  - The role of soil organic carbon in the global cycling of persistent organic 
      pollutants (POPs): interpreting and modelling field data.
PG  - 959-72
AB  - Soil is an important global reservoir for persistent organic pollutants (POPs). 
      The interaction between air (which often receives the majority of emissions) and 
      soil plays a key role in the long term environmental cycling and fate of these 
      chemicals. Soil surveys have been carried out to try and estimate regional and 
      global distribution/inventory of POPs. A correlation between soil POPs 
      concentration and soil organic carbon (SOC) has been observed in background soils 
      [Meijer et al., 2003. Global distribution and budget of PCBs and HCB in 
      background surface soils: implications for sources and environmental processes. 
      Environ. Sci. Technol., 37, 667], provoking discussion about whether POPs will 
      approach steady-state (or equilibrium) between air and SOC, on a global scale. 
      This manuscript investigates this relationship and in particular how soil 
      concentrations can be influenced by factors such as temperature, SOC content and 
      physicochemical properties. A simple two box model designed to investigate 
      parameters that are likely to affect air-soil exchange revealed that more 
      volatile chemicals such as HCB are likely to achieve steady-state conditions 
      between air and soil relatively quickly whilst relatively involatile chemicals, 
      such as heavy PCBs, may take considerably longer and other compounds (e.g. OCDD) 
      may never achieve it. These model calculations provide an insight into which fate 
      processes (e.g. volatilisation or degradation) may control a chemicals fate in 
      the terrestrial environment. A different modelling exercise was used to explore 
      the complex interaction of environmental parameters, representative of 'real 
      world' conditions to study their potential influence on POPs cycling at the 
      European scale. Results from the model suggested that compound degradation rates 
      in soil (linked to SOC content), temperature, vegetation cover and ecosystem C 
      turnover are all likely to significantly influence POP air-soil exchange and 
      fate.
FAU - Sweetman, Andrew J
AU  - Sweetman AJ
AD  - Department of Environmental Science, Institute of Environmental and Natural 
      Sciences, Lancaster University, Lancaster, LA1 4YQ, United Kingdom. 
      a.sweetman@lancaster.ac.uk
FAU - Valle, Matteo Dalla
AU  - Valle MD
FAU - Prevedouros, Konstantinos
AU  - Prevedouros K
FAU - Jones, Kevin C
AU  - Jones KC
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Air Pollutants)
RN  - 0 (Polychlorinated Dibenzodioxins)
RN  - 0 (Soil)
RN  - 0 (Soil Pollutants)
RN  - 4Z87H0LKUY (Hexachlorobenzene)
RN  - 7440-44-0 (Carbon)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
RN  - YW59P10266 (octachlorodibenzo-4-dioxin)
SB  - IM
MH  - Air/analysis
MH  - Air Pollutants/*analysis
MH  - Carbon/*analysis
MH  - Hexachlorobenzene/analysis/chemistry
MH  - *Models, Theoretical
MH  - Polychlorinated Biphenyls/analysis/chemistry
MH  - Polychlorinated Dibenzodioxins/analogs & derivatives/analysis/chemistry
MH  - Soil/*analysis
MH  - Soil Pollutants/*analysis
MH  - Temperature
MH  - Volatilization
EDAT- 2005/07/05 09:00
MHDA- 2005/10/28 09:00
CRDT- 2005/07/05 09:00
PHST- 2004/08/31 00:00 [received]
PHST- 2004/12/15 00:00 [revised]
PHST- 2004/12/24 00:00 [accepted]
PHST- 2005/07/05 09:00 [pubmed]
PHST- 2005/10/28 09:00 [medline]
PHST- 2005/07/05 09:00 [entrez]
AID - S0045-6535(05)00085-8 [pii]
AID - 10.1016/j.chemosphere.2004.12.074 [doi]
PST - ppublish
SO  - Chemosphere. 2005 Aug;60(7):959-72. doi: 10.1016/j.chemosphere.2004.12.074.