Área de Ciencias Básicas y Ambientales, Instituto Tecnológico de Santo Domingo (INTEC), Dominican Republic; LPL Consulting Group, SRL, Dominican Republic.
Laboratorio de la Dirección General de Aduana, Dominican Republic.
Mar Pollut Bull. 2023 Aug;193:115120. doi: 10.1016/j.marpolbul.2023.115120. Epub 2023 Jun 10.
This paper presents the characterization of sargassum that reached the shores of eight Dominican beaches in 2021. The analysis of heavy, alkaline and alkaline-earth metals was performed by ICP-OES. Twelve heavy metals were studied, with the highest concentrations corresponding to Fe, As, and Zn. Regarding the alkaline and alkaline-earth metals, the highest concentrations were detected for Ca, K, Na and Mg. The high values of arsenic and alkali and alkaline-earth metal salts do not suggest using these algae in agriculture. It is recommended to carry out arsenic speciation studies to assess whether the form in which it is found is bioavailable for plants and animals. The heavy metal contamination index was determined, which ranged between 0.318 and 3.279. Finally, for the first time in the country, the organic fraction of sargassum was analyzed.
本文对 2021 年到达多米尼加 8 个海滩的马尾藻进行了特征描述。采用 ICP-OES 对重金属、堿性和堿土金属进行了分析。研究了 12 种重金属，其中浓度最高的分别为 Fe、As 和 Zn。至于堿性和堿土金属，检测到的最高浓度分别为 Ca、K、Na 和 Mg。砷和堿性及堿土金属盐的高含量表明，这些藻类不适合用于农业。建议进行砷形态分析，以评估其存在形式对植物和动物是否具有生物利用性。测定了重金属污染指数，范围在 0.318 到 3.279 之间。最后，首次对该国马尾藻的有机部分进行了分析。
