Atmospheric Occurrence and Deposition of Polychlorinated Dibenzo-p-Dioxins and Dibenzofurans (PCDD/Fs) in the Open Mediterranean Sea

被引:39
作者
Castro-Jimenez, J. [1 ]
Eisenreich, S. J. [3 ]
Ghiani, M. [1 ]
Mariani, G. [1 ]
Skejo, H. [1 ]
Umlauf, G. [1 ]
Wollgast, J. [1 ]
Zaldivar, J. M. [2 ]
Berrojalbiz, N. [4 ]
Reuter, H. I.
Dachs, J. [4 ]
机构
[1] Inst Environm & Sustainabil, Ispra, Italy
[2] Inst Hlth & Consumer Protect, Ispra, Italy
[3] Directorate Programmes, Brussels, Belgium
[4] Inst Environm Assessment & Water Res IDAEA CSIC, Dept Environm Chem, Barcelona, Catalunya, Spain
关键词
PERSISTENT ORGANIC POLLUTANTS; POLYCYCLIC AROMATIC-HYDROCARBONS; TEMPORAL TRENDS; BIPHENYLS PCBS; AMBIENT AIR; ATLANTIC; PCDFS; FLUXES; LAGOON; INPUT;
D O I
10.1021/es100718n
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The overall objective of this work is to provide the first evaluation of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) occurrence and deposition to Mediterranean open seawater. Sigma 2,3,7,8-PCDD/F air (gas+aerosol) concentrations over the Mediterranean Sea ranged from 60 to 1040 fg m(-3). The highest value (1555 fg m(-3)) was measured in a reference sample taken in the SW Black Sea. No consistent trend regarding the diel cycle of PCDD/Fs was observed. PCDD/Fs transported to the open sea waters from continental areas and across the Atlantic as well as ship emissions may be significant sources to the open Mediterranean. Seawater concentrations in the Mediterranean ranged from 42 to 64 fg L-1. The Sigma 2,3,7,8-PCDD/F dry deposition fluxes in the Marmara and Black Seas (210 kg year(-1)) are from 2 to 55 times higher than dry fluxes in the Mediterranean Sea (4-156 kg year(-1)). Analysis of estimated diffusive air-water fluxes and air/water fugacity ratios show that a net volatilization of some PCDD congeners is feasible. However, evidence of a net absorption flux for the rest of PCDD/F is found. When both atmospheric deposition processes are considered together the open Mediterranean Sea is a net sink of PCDD/F, due to the importance of dry deposition fluxes of aerosol-bound PCDDFs.
引用
收藏
页码:5456 / 5463
页数:8
相关论文
共 46 条
[1]   Temporal trends of PCDDs/PCDFs in ambient air in Catalonia (Spain) [J].
Abad, E ;
Caixach, J ;
Rivera, J ;
Gustems, L ;
Massagué, G ;
Puig, O .
SCIENCE OF THE TOTAL ENVIRONMENT, 2004, 334 :279-285
[2]   Physical-Chemical Property Data for Dibenzo-p-dioxin (DD), Dibenzofuran (DF), and Chlorinated DD/Fs: A Critical Review and Recommended Values [J].
Aberg, Annika ;
MacLeod, Matthew ;
Wiberg, Karin .
JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 2008, 37 (04) :1997-2008
[3]   Polychlorinated dibenzo-p-dioxins and dibenzofurans in the remote North Atlantic marine atmosphere [J].
Baker, JI ;
Hites, RA .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1999, 33 (01) :14-20
[4]  
Berrojalbiz N., GLOBAL BIOGEOC UNPUB
[5]   Polychlorinated dibenzo-p-dioxins and dibenzofurans: Gas phase hydroxyl radical reactions and related atmospheric removal [J].
Brubaker, WW ;
Hites, RA .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1997, 31 (06) :1805-1810
[6]   PCDD/F and PCB multi-media ambient concentrations, congener patterns and occurrence in a Mediterranean coastal lagoon (Etang de Thau, France) [J].
Castro-Jimenez, J. ;
Deviller, G. ;
Ghiani, A. ;
Loos, R. ;
Mariani, G. ;
Skejo, H. ;
Umlauf, G. ;
Wollgast, J. ;
Laugier, T. ;
Heas-Moisan, K. ;
Leaute, F. ;
Munschy, C. ;
Tixier, C. ;
Tronczynski, J. .
ENVIRONMENTAL POLLUTION, 2008, 156 (01) :123-135
[7]   Atmospheric input of POPs into Lake Maggiore (Northern Italy):: PCDD/F and dioxin-like PCB profiles and fluxes in the atmosphere and aquatic system [J].
Castro-Jimenez, J. ;
Mariani, G. ;
Eisenreich, S. J. ;
Christoph, E. H. ;
Hanke, G. ;
Canuti, E. ;
Skejo, H. ;
Umlauf, G. .
CHEMOSPHERE, 2008, 73 (01) :S122-S130
[8]   A general indication of the contemporary background levels of PCDDs, PCDFs, and coplanar PCBs in the ambient air over rural and remote areas of the united states [J].
Cleverly, David ;
Ferrario, Joseph ;
Byrne, Christian ;
Riggs, Karen ;
Joseph, Darrell ;
Hartford, Pamela .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2007, 41 (05) :1537-1544
[9]  
*CONV PROT MAR ENV, 2004, CONV PROT MAR ENV BA
[10]   HCB, PCB, PCDD and PCDF emissions from ships [J].
Cooper, DA .
ATMOSPHERIC ENVIRONMENT, 2005, 39 (27) :4901-4912