Galvao Petrus, Henkelmann Bernhard, Longo Renan, Dorneles Paulo Renato, Torres João Paulo Machado, Malm Olaf, Schramm Karl-Werner
Programa de Biofísica Ambiental - Universidade Federal do Rio de Janeiro, 21941-900 Rio de Janeiro, RJ, Brazil; Laboratório de Radioisótopos Eduardo Penna-Franca, Universidade Federal do Rio de Janeiro, 21941-900 Rio de Janeiro, RJ, Brazil.
Helmholtz ZentrumMünchen, German Research Center for Environmental Health, Molecular EXposomics, IngolstädterLandstrasse 1, 85764 Neuherberg, Germany.
Chemosphere. 2014 Nov;114:9-15. doi: 10.1016/j.chemosphere.2014.04.008. Epub 2014 May 5.
For evaluating the brown mussel Perna perna as a sentinel organism regarding environmental concentrations of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs), the present study reports original data on the relationship between the concentrations of these chemicals in bottom surface sediments, suspended solids (SS) and concentrations bioaccumulated by this bivalve. Three P. perna cultivation areas, located at three bays in southeastern Brazil were used in this study. The three estuaries are under different degrees of environmental impact. Variations in the OCP and PCB concentrations bioaccumulated by the bivalves tended to be similar to those observed in the sediment, but differed from those found in SS. This latter difference might suggest that the SS trapping apparatuses should have been left in place for approximately 60 days (not only 15 days). This longer period would allow the integration of the environmental variability of the OCP and PCB burden adsorbed to this compartment. Authors encourage future studies to evaluate P. perna exposure to OCPs and PCBs through the evaluation of sediment concentrations.
为了评估褐贻贝（Perna perna）作为监测有机氯农药（OCPs）和多氯联苯（PCBs）环境浓度的指示生物，本研究报告了关于这些化学物质在底表沉积物、悬浮固体（SS）中的浓度以及该双壳贝类生物累积浓度之间关系的原始数据。本研究使用了位于巴西东南部三个海湾的三个褐贻贝养殖区。这三个河口受到不同程度的环境影响。双壳贝类生物累积的OCP和PCB浓度变化趋势与沉积物中观察到的相似，但与SS中的不同。后一种差异可能表明，SS捕获装置应放置约60天（而不仅仅是15天）。更长的时间将使吸附在该隔室中的OCP和PCB负荷的环境变异性得以整合。作者鼓励未来的研究通过评估沉积物浓度来评估褐贻贝对OCPs和PCBs的暴露情况。
