The aim of this study was to investigate the phytoremediation potential promoted by Enydra anagallis at anthropogenic polluted area – Santa Bárbara Stream, south Brazil. The watercourse was selected considering it is the main source of water to Pelotas city and the presence of high levels of nutrients and toxic metals. The phytoremediation indexes as bioconcentration factor (BCF), translocation factor (TF), and plant effective number (PEN) were estimated. The results highlighted the possibility of application of E. anagallis in phytoextraction of Ca, K, Mg and P, showing the ability of maintaining high levels of elements in aerial parts of the plant. It was also detected the rhizofiltration mechanism (BCF > 1.0 and TF < 1.0), with possible application for the removal of aluminum, arsenic, chromium, copper, iron, manganese, sodium, nickel, lead, sulfur, vanadium and zinc. Regarding the Plant Effective Number (PEN), it can be highlighted the values found for Al (55 plants), P (38 plants) and S (56 plants), being the number of plants needed for removal of 1 g. Thus, E. anagallis showed natural potential for removing contaminants from the aquatic environment and along with further studies, it could be a good recovery alternative for other contaminated watercourses.

这项研究的目的是调查由人为Enydra anagallis促进的人为污染区域–巴西南部圣巴巴拉河的植物修复潜力。选择该水道是因为它是佩洛塔斯市的主要水源，并且存在大量的营养物质和有毒金属。估算了植物修复指数，例如生物浓缩因子（BCF），转运因子（TF）和植物有效数量（PEN）。结果突出了应用E. anagallis的可能性Ca，K，Mg和P的植物提取过程中，表现出维持植物空中部分中高水平元素的能力。还检测到了根滤作用机理（BCF> 1.0和TF <1.0），并可能用于去除铝，砷，铬，铜，铁，锰，钠，镍，铅，硫，钒和锌。关于植物有效数量（PEN），可以突出显示Al（55株），P（38株）和S（56株）的值，即去除1 g所需的植物数。因此，anagallis大肠杆菌显示出从水生环境中去除污染物的自然潜力，并且随着进一步的研究，它可能是其他被污染水道的良好替代选择。