Detailed Information on Publication Record
2010
Pathways of PFOA to the Arctic: variabilities and contributions of oceanic currents and atmospheric transport and chemistry sources
STEMMLER, Irene and Gerhard LAMMELBasic information
Original name
Pathways of PFOA to the Arctic: variabilities and contributions of oceanic currents and atmospheric transport and chemistry sources
Name in Czech
Pathways of PFOA to the Arctic: variabilities and contributions of oceanic currents and atmospheric transport and chemistry sources
Authors
STEMMLER, Irene (276 Germany) and Gerhard LAMMEL (276 Germany, guarantor)
Edition
Atmospheric Chemistry and Physics, Göttingen, Copernicus Publ. 2010, 1680-7316
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
30304 Public and environmental health
Country of publisher
Germany
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 5.309
RIV identification code
RIV/00216224:14310/10:00045328
Organization unit
Faculty of Science
UT WoS
000283663000017
Keywords (in Czech)
fluorinated compounds PFOA, Arctic long range transport
Keywords in English
fluorinated compounds PFOA Arctic long range transport
Tags
International impact, Reviewed
Změněno: 10/11/2010 13:28, prof. Gerhard Lammel, PhD.
V originále
Perfluorooctanoic acid (PFOA) and other perfluorinated compounds are industrial chemicals in use for decades which resist degradation in the environment and seem to accumulate in polar regions. Transport of PFOA was modeled using a spatially resolved global multicompartment model including fully coupled three-dimensional ocean and atmosphere general circulation models, and two-dimensional top soil, vegetation surfaces, and sea ice compartments. In addition to primary emissions, the formation of PFOA in the atmosphere from degradation of 8:2 fluorotelomer alcohol was included as a PFOA source. Oceanic transport, delivered 14.8 plus/minus 5.0 (8 to 23) t per year to the Arctic, strongly influenced by changes in water transport, which determined its interannual variability. This pathway constituted the dominant source of PFOA to the Arctic. Formation of PFOA in the atmosphere led to episodic transport events (timescale of days) into the Arctic with small spatial extent. Deposition in the polar region was found to be dominated by wet deposition over land, and shows maxima in boreal winter. The total atmospheric deposition of PFOA in the Arctic in the 1990s was about 1 t per year , much higher than previously estimated, and is dominated by primary emissions rather than secondary formation.
In Czech
Perfluorooctanoic acid (PFOA) and other perfluorinated compounds are industrial chemicals in use for decades which resist degradation in the environment and seem to accumulate in polar regions. Transport of PFOA was modeled using a spatially resolved global multicompartment model including fully coupled three-dimensional ocean and atmosphere general circulation models, and two-dimensional top soil, vegetation surfaces, and sea ice compartments. In addition to primary emissions, the formation of PFOA in the atmosphere from degradation of 8:2 fluorotelomer alcohol was included as a PFOA source. Oceanic transport, delivered 14.8 plus/minus 5.0 (8 to 23) t per year to the Arctic, strongly influenced by changes in water transport, which determined its interannual variability. This pathway constituted the dominant source of PFOA to the Arctic. Formation of PFOA in the atmosphere led to episodic transport events (timescale of days) into the Arctic with small spatial extent. Deposition in the polar region was found to be dominated by wet deposition over land, and shows maxima in boreal winter. The total atmospheric deposition of PFOA in the Arctic in the 1990s was about 1 t per year , much higher than previously estimated, and is dominated by primary emissions rather than secondary formation.
Links
| MSM0021622412, plan (intention) |
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