2016
Persistent organochlorine pesticides and polychlorinated biphenyls in air of the North Sea region and air-sea exchange
MAI, Carolin, Norbert THEOBALD, Heinrich HUHNERFUSS a Gerhard LAMMELZákladní údaje
Originální název
Persistent organochlorine pesticides and polychlorinated biphenyls in air of the North Sea region and air-sea exchange
Autoři
MAI, Carolin (276 Německo), Norbert THEOBALD (276 Německo), Heinrich HUHNERFUSS (276 Německo) a Gerhard LAMMEL (276 Německo, garant, domácí)
Vydání
Environmental Science and Pollution Research, Landsberg, Germany, Ecomed, 2016, 0944-1344
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30304 Public and environmental health
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.741
Kód RIV
RIV/00216224:14310/16:00093451
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000388601400028
Klíčová slova anglicky
Air-sea exchange; North Sea; Organochlorine pesticides; Polychlorinated biphenyls
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 2. 3. 2017 14:16, Mgr. Michaela Hylsová, Ph.D.
Anotace
V originále
Organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) were studied to determine occurrence, levels and spatial distribution in the marine atmosphere and surface seawater during cruises in the German Bight and the wider North Sea in spring and summer 2009-2010. In general, the concentrations found in air are similar to, or below, the levels at coastal or near-coastal sites in Europe. Hexachlorobenzene and alpha-hexachlorocyclohexane (alpha-HCH) were close to phase equilibrium, whereas net atmospheric deposition was observed for gamma-HCH. The results suggest that declining trends of HCH in seawater have been continuing for gamma-HCH but have somewhat levelled off for alpha-HCH. Dieldrin displayed a close to phase equilibrium in nearly all the sampling sites, except in the central southwestern part of the North Sea. Here atmospheric deposition dominates the air-sea exchange. This region, close to the English coast, showed remarkably increased surface seawater concentrations. This observation depended neither on riverine input nor on the elevated abundances of dieldrin in the air masses of central England. A net depositional flux of p,p'-DDE into the North Sea was indicated by both its abundance in the marine atmosphere and the changes in metabolite pattern observed in the surface water from the coast towards the open sea. The long-term trends show that the atmospheric concentrations of DDT and its metabolites are not declining. Riverine input is a major source of PCBs in the German Bight and the wider North Sea. Atmospheric deposition of the lower molecular weight PCBs (PCB28 and PCB52) was indicated as a major source for surface seawater pollution.
Návaznosti
LM2015051, projekt VaV |
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LO1214, projekt VaV |
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