Agrochemical Research Group, Chemistry Program, Faculty of Exact and Natural Sciences, University of Cartagena, Cartagena, Colombia.
Doctoral Program in Environmental Toxicology, Pharmaceutical Sciences Faculty, University of Cartagena, Cartagena, Bolivar, Colombia.
Environ Sci Pollut Res Int. 2021 Mar;28(12):14632-14653. doi: 10.1007/s11356-020-11504-6. Epub 2020 Nov 20.
Cartagena Bay is an estuarine system located in the Caribbean Sea (Colombia, South America), that receives fresh water from Canal del Dique, which is connected to the Magdalena River, the most important river of Colombia, with some of the most prominent Colombian cities located in its watershed, which has a high sediment yield. An analysis of persistent organic pollutants and heavy metals was carried out on marine sediments from Cartagena Bay. Cartagena Bay sediments deployed the occurrence of total levels of pesticides (thiocarbamates, bromacil, triazines, organochlorines, and organophosphorus), polybrominated diphenyl ethers (PBDEs), and polychlorinated biphenyls (PCBs), in sediments ranging from 0.83-33.67 ng/g dry-weight, 0.05-0.34 ng/g dry-weight, and 0.06-19.58 ng/g dry-weight, respectively. Their concentrations were lower than those reported in NOAA Screening Quick Reference Tables. DDTs and PCBs are banned organochlorine compounds, since, even at low levels, their presence in sediments represents a threat to aquatic organisms and, therefore, to human health through the trophic chain. Sediments showed high concentrations of strontium (50-959.6 mg/kg). All metals evaluated in the marine sediments were found in the S6 sampling point; this was near tannery and hydrocarbon industries (Pb 37.1 mg/kg, Cr 137.2 mg/kg, Cd 1.7 mg/kg, Cu 64.4 mg/kg, As 13.1 mg/kg, Sr 318.9 mg/kg); these results exceeded the accepted values of threshold effect levels (TEL) used as an indicator of their potential risk on marine life.
卡塔赫纳湾是位于加勒比海（南美洲哥伦比亚）的一个河口系统，它接收来自连接马格达莱纳河的迪奎运河的淡水，马格达莱纳河是哥伦比亚最重要的河流，其流域内有一些哥伦比亚最重要的城市，该流域的泥沙产量很高。对卡塔赫纳湾的海洋沉积物进行了持久性有机污染物和重金属的分析。卡塔赫纳湾沉积物中存在总水平的农药（硫代氨基甲酸盐、溴氨草、三嗪、有机氯和有机磷）、多溴二苯醚（PBDEs）和多氯联苯（PCBs），浓度范围分别为 0.83-33.67ng/g 干重、0.05-0.34ng/g 干重和 0.06-19.58ng/g 干重。它们的浓度低于美国国家海洋和大气管理局（NOAA）筛选快速参考表中报告的浓度。滴滴涕和多氯联苯是被禁止的有机氯化合物，因为即使在低水平下，它们在沉积物中的存在对水生生物构成威胁，因此通过食物链对人类健康构成威胁。沉积物中锶的浓度很高（50-959.6mg/kg）。在海洋沉积物中评估的所有金属都在 S6 采样点被发现；该采样点靠近制革厂和碳氢化合物工业（Pb 37.1mg/kg，Cr 137.2mg/kg，Cd 1.7mg/kg，Cu 64.4mg/kg，As 13.1mg/kg，Sr 318.9mg/kg）；这些结果超过了作为其对海洋生物潜在风险的指标的阈效应水平（TEL）的可接受值。
