Department of Chemistry, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rua Marquês de São Vicente, 225, Gávea-Rio de Janeiro, RJ-22453-900, Brazil.
Chemosphere. 2009 Oct;77(6):863-9. doi: 10.1016/j.chemosphere.2009.07.079. Epub 2009 Sep 9.
Despite the concern over widespread distribution of perfluorinated compounds (PFCs) even in sparsely populated regions of the world, few studies have reported their occurrence in South America. In this study, PFCs were measured in Rio de Janeiro State in southeast Brazil: in drinking water from various districts in the State, in river water and tucuxi dolphins from the Paraiba do Sul River, several species of fish from the State, and mussels from Guanabara Bay. Liver, kidney, and muscle from fishes were analyzed to enable an understanding of the tissue distribution of PFCs. PFOS, PFOA, and PFHxS were detected in all drinking water samples in concentration ranges of 0.58-6.70, 0.35-2.82, and 0.15-1.00 ng L(-1), respectively. The profiles of PFCs in drinking water from Brazil (with PFOS concentrations comparable to or higher than those of PFOA) were different from the profiles that have been reported for other countries. In fish, concentrations of PFOS were, in general, higher in liver than in muscle. Concentrations of PFOA in livers of fish were similar to or lower than fish muscle tissue concentrations. PFOS and PFOA were found in brown mussels from Guanabara Bay. Bioconcentration factors (BCFs) of PFOA calculated for mussels were higher than the BCFs calculated for fishes. Elevated concentrations of PFUnDA (mean: 109+/-17.4 ng g(-1) wet weight) were found in mussels from certain locations within Guanabara Bay. Although PFCs were detected in all types of samples analyzed, the concentrations were generally lower than the concentrations reported for Japan and the USA.
尽管人们对全氟化合物（PFCs）在世界上人口稀少地区的广泛分布表示担忧，但在南美洲，很少有研究报告其存在情况。在本研究中，对巴西南部里约热内卢州的 PFCs 进行了测量：在该州不同地区的饮用水中、帕拉伊巴杜苏尔河中河水和宽吻海豚、该州的几种鱼类以及瓜纳巴拉湾中的贻贝中都检测到了 PFCs。对鱼类的肝脏、肾脏和肌肉进行了分析，以了解 PFCs 在组织中的分布情况。在所有饮用水样本中均检测到 PFOS、PFOA 和 PFHxS，浓度范围分别为 0.58-6.70、0.35-2.82 和 0.15-1.00ng/L。巴西饮用水中 PFCs 的分布情况（PFOS 浓度与 PFOA 相当或高于 PFOA）与其他国家报告的分布情况不同。在鱼类中，PFOS 的浓度通常在肝脏中高于肌肉。鱼类肝脏中 PFOA 的浓度与肌肉组织浓度相似或低于肌肉组织浓度。在瓜纳巴拉湾的贻贝中发现了 PFOS 和 PFOA。为贻贝计算的 PFOA 生物浓缩系数（BCF）高于为鱼类计算的 BCF。在瓜纳巴拉湾某些地区的贻贝中发现了浓度较高的 PFUnDA（平均值：109+/-17.4ng/g 湿重）。尽管在所有类型的分析样本中均检测到 PFCs，但浓度通常低于日本和美国报告的浓度。
