Contamination levels of polychlorinated biphenyls in wild versus cultivated samples of female and male mussels (Mytilus sp.) from the Northwest Coast of Iberian Peninsula--new application for QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) methodology.
A newly analytical method based on QuEChERS extraction followed by gas chromatography with mass spectrometry (GC-MS) analysis was developed and validated for the quantification of 18 PCBs in wild (from Matosinhos Beach, Portugal) and cultivated (from Ria de Arousa, Spain) mussel samples, pooled by sex. Wild animals showed higher PCB levels than cultivated mussels, with males from both origins, presenting an upper contamination profile comparing with females. This fact seems to be correlated with few biometric parameters, but other interdependencies, not addressed herein, such as distinct lipid contents between sexes, as a consequence of the gametogenic stage, may also explain this data. Overall, data reiterate the importance of investigating the presence of PCBs in marine biological samples, which can act both as bioindicators of environmental contamination, either as food quality controls for human health.
ICBAS-Institute of Biomedical Sciences Abel Salazar, U. Porto-University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313, Oporto, Portugal, tvmadureira@icbas.up.pt.
Tânia Vieira
TV
Madureira
Cláudia
C
Santos
Susana
S
Velhote
Catarina
C
Cruzeiro
Eduardo
E
Rocha
Maria João
MJ
Rocha
D000818:Animals; D017756:Aquaculture; D004784:Environmental Monitoring; D005260:Female; D005398:Fisheries / Q000706:statistics & numerical data; D008401:Gas Chromatography-Mass Spectrometry; D008297:Male; D049878:Mytilus / Q000378:metabolism*; D011078:Polychlorinated Biphenyls / Q000032:analysis / Q000378:metabolism*; D011174:Portugal; D013030:Spain; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000378:metabolism*
D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls