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@article{992992,
author = {Stemmler, I. and Lammel, Gerhard},
article_location = {Heidelberg},
article_number = {6},
doi = {http://dx.doi.org/10.1007/s11356-012-0943-8},
keywords = {Polychlorinated biphenyls; Trans-Pacific transport; Long-range transport; Inter-continental transport; Persistent organic pollutants; Modelling},
language = {eng},
issn = {0944-1344},
journal = {Environmental Science and Pollution Research},
title = {Long-term trends of continental scale PCB patterns studied using a global atmosphere-ocean general circulation model},
volume = {19},
year = {2012}
}
TY - JOUR
ID - 992992
AU - Stemmler, I. - Lammel, Gerhard
PY - 2012
TI - Long-term trends of continental scale PCB patterns studied using a global atmosphere-ocean general circulation model
JF - Environmental Science and Pollution Research
VL - 19
IS - 6
SP - 1971-1980
EP - 1971-1980
PB - Springer
SN - 09441344
KW - Polychlorinated biphenyls
KW - Trans-Pacific transport
KW - Long-range transport
KW - Inter-continental transport
KW - Persistent organic pollutants
KW - Modelling
N2 - Continental-scale distribution and inter-continental transport of four polychlorinated biphenyl (PCB) congeners (28, 101, 153, 180) from 1950 to 2010 were studied using the global multicompartment chemistry transport model MPI-MCTM. Following identical primary emissions for all PCB congeners into air, most of the burden is stored in terrestrial (soil and vegetation) compartments. Thereby, PCB-28, PCB-101 and PCB-153 show a shift of the soil burden maxima from source to remote regions. This shift is downwind with regard to the westerlies for Eurasia and upwind for North America and more prominent for the lighter PCBs than for PCB-153 or PCB-180. In meridional direction, all congeners' distributions underwent a northward migration in Eurasia and North America since the 1950s. Inter-continental transport from Eurasian sources accounts largely for contamination of Alaska and British Columbia and determines the migration of the PCB distribution in soil in North America. Trans-Pacific transport occurs mainly in the gas phase in boreal winter (December-January-February) at 3-4 km altitude and is on a multi-year time scale strongly linked to the atmospheric pressure systems over the Pacific. Inter-continental transport of the lighter, more volatile PCBs is more efficient than for the heavier PCBs.
ER -
STEMMLER, I. a Gerhard LAMMEL. Long-term trends of continental scale PCB patterns studied using a global atmosphere-ocean general circulation model. \textit{Environmental Science and Pollution Research}. Heidelberg: Springer, 2012, roč.~19, č.~6, s.~1971-1980. ISSN~0944-1344. Dostupné z: https://dx.doi.org/10.1007/s11356-012-0943-8.
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