J 2016

Persistent organochlorine pesticides and polychlorinated biphenyls in air of the North Sea region and air-sea exchange

MAI, Carolin, Norbert THEOBALD, Heinrich HUHNERFUSS and Gerhard LAMMEL

Basic information

Original name

Persistent organochlorine pesticides and polychlorinated biphenyls in air of the North Sea region and air-sea exchange

Authors

MAI, Carolin (276 Germany), Norbert THEOBALD (276 Germany), Heinrich HUHNERFUSS (276 Germany) and Gerhard LAMMEL (276 Germany, guarantor, belonging to the institution)

Edition

Environmental Science and Pollution Research, Landsberg, Germany, Ecomed, 2016, 0944-1344

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

References:

Impact factor

Impact factor: 2.741

RIV identification code

RIV/00216224:14310/16:00093451

Organization unit

Faculty of Science

UT WoS

000388601400028

Keywords in English

Air-sea exchange; North Sea; Organochlorine pesticides; Polychlorinated biphenyls

Tags

Tags

International impact, Reviewed
Změněno: 2/3/2017 14:16, Mgr. Michaela Hylsová, Ph.D.

Abstract

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.

Links

LM2015051, research and development project
Name: Centrum pro výzkum toxických látek v prostředí (Acronym: RECETOX RI)
Investor: Ministry of Education, Youth and Sports of the CR
LO1214, research and development project
Name: Centrum pro výzkum toxických látek v prostředí (Acronym: RECETOX)
Investor: Ministry of Education, Youth and Sports of the CR