Freitas Vânia, Almeida C Marisa R, Rodrigues Sabrina M, Pereira Rúben, Gorito Ana M, Cunha Jacinto, Silva Diogo M, van Heerden Alexandre, Ramos Sandra
CIIMAR/CIMAR LA, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal.
Chemistry and Biochemistry Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal.
Data Brief. 2025 Jan 21;59:111317. doi: 10.1016/j.dib.2025.111317. eCollection 2025 Apr.
This article presents a comprehensive dataset of physicochemical data from two urban estuaries on the northern Portuguese coast, based on five sampling campaigns conducted between October 2021 and November 2022. The dataset includes: a) vertical profiles of water physicochemical parameters (temperature, salinity, pH, turbidity, dissolved oxygen concentration and saturation) collected at 8 sampling stations along the Lima estuary (during both ebb and flood tides) and at 11 stations along the Douro estuary (during flood tides); and b) chemical analyses data, including nutrients (nitrate, nitrite, phosphate, ammonium, and silica), chlorophyll , total particulate matter, particulate organic matter, and key metal (copper, zinc, cadmium, iron, nickel, lead, manganese, and chromium) concentrations. For the Lima estuary, additional data on dissolved metals concentrations are provided, offering a detailed picture of metal contamination. This dataset provides valuable insights into the estuarine dynamics of two important temperate systems, with a particular focus on anthropogenic influences such as nutrient enrichment and metal contamination. The data have strong reuse potential in environmental monitoring, providing a baseline for assessing anthropogenic changes and offering quality-assured references for studies linking contaminant distribution with hydrodynamic patterns in estuarine environments. Furthermore, such data are relevant to supporting the implementing of environmental policies, such as the EU Water Framework Directive for transitional waters.
本文展示了来自葡萄牙北部海岸两个城市河口的物理化学数据综合数据集，该数据集基于2021年10月至2022年11月期间开展的五次采样活动。该数据集包括：a）沿利马河口8个采样站（涨潮和落潮期间）以及杜罗河口11个采样站（涨潮期间）采集的水物理化学参数（温度、盐度、pH值、浊度、溶解氧浓度和饱和度）的垂直剖面；b）化学分析数据，包括营养物质（硝酸盐、亚硝酸盐、磷酸盐、铵和硅）、叶绿素、总颗粒物、颗粒有机物以及关键金属（铜、锌、镉、铁、镍、铅、锰和铬）的浓度。对于利马河口，还提供了溶解金属浓度的额外数据，展现了金属污染的详细情况。该数据集为两个重要温带系统的河口动力学提供了有价值的见解，尤其关注营养物质富集和金属污染等人为影响。这些数据在环境监测中具有很强的重用潜力，为评估人为变化提供了基线，并为将河口环境中污染物分布与水动力模式联系起来的研究提供了质量有保证的参考。此外，这些数据对于支持环境政策的实施至关重要，例如欧盟关于过渡水域的水框架指令。
