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Air and seawater pollution and air-sea gas exchange of persistent toxic substances in the Aegean Sea: spatial trends of PAHs, PCBs, OCPs and PBDEs
Research Centre for Toxic Compounds in the Environment, Masaryk University, Brno, Czech Republic; Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany.
Research Centre for Toxic Compounds in the Environment, Masaryk University, Brno, Czech Republic.
Department of Chemistry, Environmental Pollution Control Laboratory, Aristotle University, Thessaloniki, Greece.
Research Centre for Toxic Compounds in the Environment, Masaryk University, Brno, Czech Republic.
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2015 (English)In: Environmental science and pollution research international, ISSN 0944-1344, E-ISSN 1614-7499, Vol. 22, no 15, 11301-11313 p.Article in journal (Refereed) Published
Resource type
Text
Abstract [en]

Near-ground air (26 substances) and surface seawater (55 substances) concentrations of persistent toxic substances (PTS) were determined in July 2012 in a coordinated and coherent way around the Aegean Sea based on passive air (10 sites in 5 areas) and water (4 sites in 2 areas) sampling. The direction of air-sea exchange was determined for 18 PTS. Identical samplers were deployed at all sites and were analysed at one laboratory. hexachlorobenzene (HCB), hexachlorocyclohexanes (HCHs) as well as dichlorodiphenyltrichloroethane (DDT) and its degradation products are evenly distributed in the air of the whole region. Air concentrations of p,p'-dichlorodiphenyldichloroethylene (p,p'-DDE) and o,p'-DDT and seawater concentrations of p,p'-DDE and p,p'-DDD were elevated in Thermaikos Gulf, northwestern Aegean Sea. The polychlorinated biphenyl (PCB) congener pattern in air is identical throughout the region, while polybrominated diphenylether (PBDE)patterns are obviously dissimilar between Greece and Turkey. Various pollutants, polycyclic aromatic hydrocarbons (PAHs), PCBs, DDE, and penta- and hexachlorobenzene are found close to phase equilibrium or net-volatilisational (upward flux), similarly at a remote site (on Crete) and in the more polluted Thermaikos Gulf. The results suggest that effective passive air sampling volumes may not be representative across sites when PAHs significantly partitioning to the particulate phase are included.

Place, publisher, year, edition, pages
Springer Berlin/Heidelberg, 2015. Vol. 22, no 15, 11301-11313 p.
Keyword [en]
Air-sea gas exchange; Deposition; Passive sampling; Volatilisation; Fugacity ratios; Aegean Sea
National Category
Environmental Sciences
Research subject
Enviromental Science
Identifiers
URN: urn:nbn:se:oru:diva-49767DOI: 10.1007/s11356-015-4363-4ISI: 000358330800011PubMedID: 25804661Scopus ID: 2-s2.0-84937978438OAI: oai:DiVA.org:oru-49767DiVA: diva2:918911
Note

Funding Agencies:

Granting Agency of the Czech Republic 312334

Czech Ministry of Education LO1214  LM2011028

European Social Fund CZ.1.07/2.3.00/30.0037

European Commission FP7 262254 ACTRIS

Available from: 2016-04-12 Created: 2016-04-12 Last updated: 2017-10-17Bibliographically approved

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