%0 Journal Article
%T Occurrence, loading and exposure of atmospheric particle-bound POPs at the African and European edges of the western Mediterranean Sea.
%+ Institut méditerranéen d'océanologie (MIO)
%+ FSB
%+ CSIC-IQOG
%+ Laboratoire Chimie de l'environnement (LCE)
%A Castro-Jimenez, Javier
%A Barhoumi, Badreddine
%A Paluselli, Andrea
%A Tedetti, Marc
%A Jiménez, Begoña
%A Muñoz-Arnanz, Juan
%A Wortham, Henri
%A Driss, Mohamed Ridha
%A Sempere, Richard
%< avec comité de lecture
%Z MIO:17-044
%@ 0013-936X
%J Environmental Science and Technology
%I American Chemical Society
%V 51
%N 22
%P 10.1021/acs.est.7b04614
%8 2017-10-20
%D 2017
%R 10.1021/acs.est.7b04614
%M 29052985
%K marine pollution
%K PCB
%K environmental risk
%K flame retardant
%K dioxin
%Z Environmental Sciences/Global Changes
%Z Sciences of the Universe [physics]/Continental interfaces, environment
%Z Sciences of the Universe [physics]/Ocean, Atmosphere
%Z Chemical Sciences/Analytical chemistryJournal articles
%X A comparative study for 62 toxic chemicals based on the monthly simultaneous collection of aerosol samples during 2015-2016 in two coastal cities at both the African (Bizerte, Tunisia) and European (Marseille, France) edges of the W Mediterranean basin is presented. Legacy polychlorinated biphenyls (Σ18PCBs) and polychlorinated dibenzo-p-dioxins and dibenzofurans (Σ17PCDD/Fs) show generally higher median levels at the African edge (2.1 and 0.2 pg m-3, respectively) compared to the European coastal site (1.0 and 0.08 pg m-3, respectively). Contrary, the “emerging” polybrominated diphenyl ethers (Σ27PBDEs) median concentrations were higher in Marseille (~ 9.0 pg m-3) compared to Bizerte (~ 6.0 pg m-3). Different past usage and current emission patterns were found at both edges of the W Mediterranean, most probably linked to the respective different regulatory frameworks for toxic chemicals. Our results indicate that the total organic carbon (TOC) and/or the elemental carbon (EC) contents in the atmospheric aerosol may have a stronger effect than the total suspended particle (TSP) content as a whole on the spatial-temporal variability and the long-range atmospheric transport potential of the studied POPs. A “jumping” of the PBDE local atmospheric stocks from the NW European Mediterranean edge to the NW African coast seems to be possible under favorable conditions at present. While a higher PBDE median loading is estimated for Marseille area (~ 550 ng m-2 y-1) compared to Bizerte (~400 ng m-2 y-1), the median PCB and PCDD/F dry deposition fluxes were higher at the African site, resulting in a 3-fold higher toxic equivalent (TEQ) loading of dioxin-like pollutants (400 pg TEQ m-2 y-1) compared to Marseille (~140 pg TEQ m-2 y-1) with potential implications for the aquatic organisms. However, the inhalation exposure assessment points to a minimum risk for human health at both sites.
%G English
%2 https://hal.science/hal-01621291/document
%2 https://hal.science/hal-01621291/file/Castro-Jimenez_2017_EST_POPs_WMED_just%20accepted.pdf
%L hal-01621291
%U https://hal.science/hal-01621291
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%~ UNIV-AMU
%~ MIO
%~ OSU-INSTITUT-PYTHEAS
%~ GIP-BE
%~ INC-CNRS
%~ AMIDEX
%~ LCE
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