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|Title:||A practical example of the challenges of biota monitoring under the Water Framework Directive|
|Authors:||LAVA ROBERTO; MAJOROS Laszlo; DOSIS IOANNIS; RICCI Marina|
|Citation:||TRAC-TRENDS IN ANALYTICAL CHEMISTRY vol. 59 p. 103-111|
|Publisher:||ELSEVIER SCI LTD|
|Type:||Articles in periodicals and books|
|Abstract:||Twenty-nine Wels catfish were caught from the Ebro River (Spain) and analyzed for the mass fractions of hexachlorobenzene (HCB) and hexachlorobutadiene (HCBD), two priority substances for which environmental quality standards (EQSs) have been established in biota since 2008. These fish are the starting material for a candidate certified reference material. The results obtained show high variability in the mass-fraction level. Considering the same specimen, tails always have higher contamination levels than heads, the highest results being of about 1000 ng g−1 for both analytes. EQSs were exceeded 17 times for HCB and once for HCBD in tail samples. We discuss the results with regard to representativeness and data evaluation with regard to EQS compliance. We present observations and open questions for the on-going discussion about implementing biota monitoring, in the view of the requirements imposed to Member States by the recently adopted Directive 2013/39/EU.|
|JRC Directorate:||Health, Consumers and Reference Materials|
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