The Serinhaém River estuary is located in the Environmental Protection Area (EPA) of Pratigi, in the State of Bahia, Brazil, which is recognized for being a relatively well-preserved environment. In this work, the levels of aluminum (Al), arsenic (As), barium (Ba), cobalt (Co), chromium (Cr), copper (Cu), iron (Fe), manganese (Mn), nickel (Ni), lead (Pb), vanadium (V), and zinc (Zn) were determined to evaluate the behavior of these chemical elements through geochemical parameters. Eighty-one sediment samples were collected in five sediment cores along the estuarine region. The results of the composition of the Serinhaém river basin showed high levels of Fe, Al, and Mn in the sediment samples. By using Principal Component Analysis, it was observed that 55.8% of the elements have a significant correlation with Fe, Al, and Mn, which may have the same origin or be associated with Fe and Mn oxy-hydroxides, and aluminosilicates. Although Cr, As, and V are correlated with Fe, Mn, and Al, their concentrations are above those established by NOAA, suggesting adverse effects on biota. Barium concentrations increased toward the outfall, where it meets the Camamu Bay, which is naturally enriched with this element. It was also possible to observe that along with the vertical profile, there were no variations in the concentrations of the elements, while along the estuary, it was possible to verify that the cores differ from each other. The estuary of the Serinhaém River can be considered to be influenced relatively little by human activities, and its concentrations can be considered as a base level for this coastal region.

塞林海姆河河口位于巴西巴伊亚州普拉蒂吉的环境保护区（EPA），该地区被认为是保存相对良好的环境。在这项工作中，铝（Al），砷（As），钡（Ba），钴（Co），铬（Cr），铜（Cu），铁（Fe），锰（Mn），镍（Ni）的含量），铅（Pb），钒（V）和锌（Zn）用于通过地球化学参数评估这些化学元素的行为。在河口地区的五个沉积岩心中收集了81个沉积物样本。Serinhaém流域的组成结果表明，沉积物中的铁，铝和锰含量很高。通过主成分分析，发现55.8％的元素与Fe，Al和Mn具有显着的相关性，它们可能具有相同的来源或与Fe和Mn羟基氢氧化物以及铝硅酸盐有关。尽管Cr，As和V与Fe，Mn和Al相关，但它们的浓度高于NOAA确定的浓度，表明对生物群有不利影响。钡的浓度朝着排污口增加，并与天然富含该元素的卡马穆湾相遇。还可以观察到，沿着垂直剖面，元素的浓度没有变化，而沿着河口，可以验证岩心彼此不同。可以认为Serinhaém河的河口受人类活动的影响相对较小，其集中程度可以视为该沿海地​​区的基准水平。和铝硅酸盐。尽管Cr，As和V与Fe，Mn和Al相关，但它们的浓度高于NOAA确定的浓度，表明对生物群有不利影响。钡的浓度朝着排污口增加，并与天然富含该元素的卡马穆湾相遇。还可以观察到，沿着垂直剖面，元素的浓度没有变化，而沿着河口，可以验证岩心彼此不同。可以认为Serinhaém河的河口受人类活动的影响相对较小，其集中程度可以视为该沿海地​​区的基准水平。和铝硅酸盐。尽管Cr，As和V与Fe，Mn和Al相关，但它们的浓度高于NOAA确定的浓度，表明对生物群有不利影响。钡的浓度朝着排污口增加，并与天然富含该元素的卡马穆湾相遇。还可以观察到，沿着垂直剖面，元素的浓度没有变化，而沿着河口，可以验证岩心彼此不同。可以认为Serinhaém河的河口受人类活动的影响相对较小，其集中程度可以视为该沿海地​​区的基准水平。表明对生物群有不利影响。钡的浓度朝着排污口增加，并与天然富含该元素的卡马穆湾相遇。还可以观察到，沿着垂直剖面，元素的浓度没有变化，而沿着河口，可以验证岩心彼此不同。可以认为Serinhaém河的河口受人类活动的影响相对较小，其集中程度可以视为该沿海地​​区的基准水平。表明对生物群有不利影响。钡的浓度朝着排污口增加，并与天然富含该元素的卡马穆湾相遇。还可以观察到，沿着垂直剖面，元素的浓度没有变化，而沿着河口，可以验证岩心彼此不同。可以认为Serinhaém河的河口受人类活动的影响相对较小，其集中程度可以视为该沿海地​​区的基准水平。元素的浓度没有变化，而沿着河口，有可能核实核彼此不同。可以认为Serinhaém河的河口受人类活动的影响相对较小，其集中程度可以视为该沿海地​​区的基准水平。元素的浓度没有变化，而沿着河口，有可能核实核彼此不同。可以认为Serinhaém河的河口受人类活动的影响相对较小，其集中程度可以视为该沿海地​​区的基准水平。