<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Sanctorum,H.</style></author><author><style face="normal" font="default" size="100%">M. Elskens</style></author><author><style face="normal" font="default" size="100%">Leermakers,M.</style></author><author><style face="normal" font="default" size="100%">Gao,Y.</style></author><author><style face="normal" font="default" size="100%">Charriau,A.</style></author><author><style face="normal" font="default" size="100%">Billon,G.</style></author><author><style face="normal" font="default" size="100%">Séverine Goscinny</style></author><author><style face="normal" font="default" size="100%">Cooman,W.</style></author><author><style face="normal" font="default" size="100%">Baeyens,W.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Sources of PCDD/Fs, non-ortho PCBs and PAHs in sediments of high and low impacted transboundary rivers (Belgium-France)</style></title><secondary-title><style face="normal" font="default" size="100%">Chemosphere</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Case</style></keyword><keyword><style  face="normal" font="default" size="100%">CONSUMPTION</style></keyword><keyword><style  face="normal" font="default" size="100%">contribution</style></keyword><keyword><style  face="normal" font="default" size="100%">Fraction</style></keyword><keyword><style  face="normal" font="default" size="100%">France</style></keyword><keyword><style  face="normal" font="default" size="100%">IS</style></keyword><keyword><style  face="normal" font="default" size="100%">LEVEL</style></keyword><keyword><style  face="normal" font="default" size="100%">levels</style></keyword><keyword><style  face="normal" font="default" size="100%">Non-ortho PCB</style></keyword><keyword><style  face="normal" font="default" size="100%">observed</style></keyword><keyword><style  face="normal" font="default" size="100%">ORIGIN</style></keyword><keyword><style  face="normal" font="default" size="100%">PAH</style></keyword><keyword><style  face="normal" font="default" size="100%">PAHs</style></keyword><keyword><style  face="normal" font="default" size="100%">past</style></keyword><keyword><style  face="normal" font="default" size="100%">PCB</style></keyword><keyword><style  face="normal" font="default" size="100%">Pcbs</style></keyword><keyword><style  face="normal" font="default" size="100%">PCDD/F</style></keyword><keyword><style  face="normal" font="default" size="100%">PROCESSES</style></keyword><keyword><style  face="normal" font="default" size="100%">Ratio</style></keyword><keyword><style  face="normal" font="default" size="100%">Ratios</style></keyword><keyword><style  face="normal" font="default" size="100%">Reduction</style></keyword><keyword><style  face="normal" font="default" size="100%">Sample</style></keyword><keyword><style  face="normal" font="default" size="100%">Samples</style></keyword><keyword><style  face="normal" font="default" size="100%">Sediments</style></keyword><keyword><style  face="normal" font="default" size="100%">Upper-Scheldt river</style></keyword><keyword><style  face="normal" font="default" size="100%">use</style></keyword><keyword><style  face="normal" font="default" size="100%">Yser river</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">0/9/2011</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">209</style></number><volume><style face="normal" font="default" size="100%">85</style></volume><pages><style face="normal" font="default" size="100%">203 - 209</style></pages><isbn><style face="normal" font="default" size="100%">0045-6535</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">PAHs, PCDD/Fs and non-ortho PCBs have been assessed in Yser and Upper-Scheldt river sediments. Higher contamination levels were observed in the Upper-Scheldt sediments: maximum concentrations for the 16 US-EPA PAHs, PCDD/Fs and non-ortho PCBs respectively amount to 8.9 mg kg-1, 12 ng TEQ kg-1 and 5.1 ng TEQ kg-1. Diagnostic PAH ratios in sediments and atmospheric samples suggest that the PAH compounds are from pyrolytic origin, more specifically combustion processes. The huge consumption of coal in cokes-ovens and smelters and its use for house-heating in Northern France, although decreasing during the last decades, are in support of that suggestion. PCDD/F fingerprints in sediments and deposition material indicate that OCDD is the dominant congener. In addition use of pentachlorophenol (PCP) in the past led to a minor contribution of PCDD/Fs in our sediment samples. Non-ortho PCBs form a substantial fraction of the total TEQ concentrations observed in the sediments. Since the 1980s and 1990s a substantial reduction of the PCDD/F sediment concentrations is observed, but this is not the case for the PAHs</style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><custom1><style face="normal" font="default" size="100%">2115</style></custom1><section><style face="normal" font="default" size="100%">203</style></section></record></records></xml>