Unidad de Química Sisal, Facultad de Química, Universidad Nacional Autónoma de México, Puerto de Abrigo Sisal, 97355, Sisal, Yucatán, Mexico.
Oceanography Department and Geochemical and Environmental Research Group (GERG), Texas A&M University, 77840, College Station, TX, USA.
Bull Environ Contam Toxicol. 2022 Jan;108(1):43-48. doi: 10.1007/s00128-021-03234-3. Epub 2021 Apr 22.
Surface water samples from the Yucatan shelf presented Cd concentrations similar to those reported internationally for non-polluted coastal and marine waters. V concentrations, on the other hand, fall within the range of anthropogenically polluted waters (25% of the sampling sites). In the study area, the probable sources of V could be: (1) carbonate sediments leaching V into the water column and co-transported with fine sediments resuspending as a result of the complex hydrodynamics in the area or, (2) accidental spills from cargo ships transporting oil between the Atlantic and the Gulf of Mexico. Significant spatial and temporal differences were found for both metals; therefore, a regional interval concentration is suggested for V from 1.28 to 1.84 μg L and Cd from 0.003 to 0.09 μg L. These differences could primarily be the result of the observed hydrology and hydrodynamics created by the Yucatan current, submarine groundwater discharges and upwelling.
尤卡坦陆架的地表水样本中的 Cd 浓度与国际上报道的未受污染的沿海和海洋水域的 Cd 浓度相似。然而，V 的浓度属于人为污染水域的范围（采样点的 25%）。在研究区域，V 的可能来源为：（1）碳酸盐沉积物将 V 浸滤到水柱中，并与由于该地区复杂的水动力而重新悬浮的细沉积物一起被共同输运；（2）在大西洋和墨西哥湾之间运输石油的货船发生意外溢油。这两种金属的空间和时间差异都很大；因此，建议从 1.28 到 1.84μg/L 的区域间隔浓度来表示 V，从 0.003 到 0.09μg/L 的浓度来表示 Cd。这些差异主要可能是由尤卡坦海流、海底地下水排放和上升流所造成的观测到的水文学和水动力造成的。
