Postgraduate program of Chemical Engineering, West Paraná State University, Toledo, Paraná, Brazil.
Water Sci Technol. 2011;63(7):1506-12. doi: 10.2166/wst.2011.396.
The main objective of this study was to evaluate the metal content in water and sediment from the Toledo municipal lake, as well as the concentration levels of heavy metals in muscle and liver of four fish species. A digestion procedure was performed in all fish samples. Metal analysis was performed by using the Synchrotron Radiation X-ray Fluorescence technique. The accuracy and validity of the measurements were determined by analysis of certified reference materials. The highest Cr, Cu and Se concentration levels above the maximum tolerance limit according to the Brazilian norms in fish tissue could be associated with the metal uptake and accumulation due to the direct contact with contaminated water and sediment.
本研究的主要目的是评估托莱多市湖泊的水和沉积物中的金属含量，以及四种鱼类肌肉和肝脏中的重金属浓度。对所有鱼类样本进行了消解处理。采用同步辐射 X 射线荧光技术进行金属分析。通过分析认证参考物质来确定测量的准确性和有效性。鱼类组织中 Cr、Cu 和 Se 的浓度水平高于巴西标准规定的最大耐受限度，这可能与直接接触受污染的水和沉积物导致的金属摄取和积累有关。
