Laboratorio de Geoquímica Marina, Departamento de Recursos del Mar, CINVESTAV-Mérida, Mérida, Mexico.
Oceanography Department and Geochemical and Environmental Research Group (GERG), Texas A&M University, College Station, USA.
Bull Environ Contam Toxicol. 2022 Jan;108(1):30-36. doi: 10.1007/s00128-021-03213-8. Epub 2021 Apr 8.
This study analyzed 27 surface sediment samples from the Tamaulipas Continental shelf to determine the spatial-temporal distribution of V and Cd (spring-summer 2016; summer 2017). Average V concentrations (99 ± 18 mg g) were similar to that previously reported values for the area, while average Cd concentrations reflect uncontaminated sediments at surface level of the shelf. Inputs of V and Cd may be related to hydrocarbon and anthropogenic contributions from South and North of the Gulf of Mexico. The variability shown by both elements results from the hydrodynamics and hydrology of the area produced by local currents, eddies of the Loop Current, resuspension of fine sediments and contribution of terrigenous material. Considering that both metals showed significant differences (Shapiro-Wilk, p = 0), baseline concentrations could not be established, instead a reference interval of 79-122 µg g for V and 0.121-0.258 µg g for Cd in sediments from the Tamaulipas platform is suggested.
本研究分析了塔毛利帕斯大陆架的 27 个表层沉积物样本，以确定 V 和 Cd 的时空分布（2016 年春季-夏季；2017 年夏季）。V 的平均浓度（99 ± 18 mg g）与该地区先前报告的值相似，而 Cd 的平均浓度反映了表层沉积物未受污染。V 和 Cd 的输入可能与来自墨西哥湾南部和北部的碳氢化合物和人为贡献有关。这两个元素的变化是由当地海流、环流的漩涡、细沉积物的再悬浮以及陆源物质的贡献引起的。考虑到这两种金属都表现出显著差异（Shapiro-Wilk，p = 0），因此无法建立基线浓度，而是建议在塔毛利帕斯平台的沉积物中，V 的参考区间为 79-122 µg g，Cd 的参考区间为 0.121-0.258 µg g。
