The analysis of marine matter using the Sentinel-3B OLCI (Ocean Land Color Instrument) satellite is the most advanced technique for evaluating: the absorption of colored detrital and dissolved material (ADG_443_NN), total suspended matter concentration (TSM_NN) and of chlorophyll-a (CHL_NN) on a global scale. The objective is to analyze ADG_443_NN, TSM_NN and CHL_NN using the Sentinel-3B OLCI satellite and the presence of Fe-nanoparticles (NPs) + hazardous elements (HEs) in suspended sediments (SSs) in the maritime estuary of the Colombian city of Barranquilla. The study used the unpublished image of the Sentinel-3B OLCI satellite in the evaluation of ADG_443_NN, TSM_NN and CHL_NN in 72 sampled points. Subsequently, 36 samples of SSs were carried out in the Magdalena River, in the identification of Fe-NPs by advanced electron microscopies. The Sentinel-3B satellite revealed particulate accumulations in OCE1 through the intensity of OLCI in ocean. There was also a high Fe-NPs intensity of SSs in the Magdalena channel, spreading contamination to large regions.

使用 Sentinel-3B OLCI（海洋陆地颜色仪器）卫星分析海洋物质是最先进的评估技术：有色碎屑和溶解物质的吸收 (ADG_443_NN)、总悬浮物质浓度 (TSM_NN) 和叶绿素-a (CHL_NN) 在全球范围内。目的是使用 Sentinel-3B OLCI 卫星分析 ADG_443_NN、TSM_NN 和 CHL_NN，并分析哥伦比亚巴兰基亚市海上河口悬浮沉积物 (SS) 中 Fe 纳米粒子 (NPs) + 危险元素 (HEs) 的存在。该研究使用了 Sentinel-3B OLCI 卫星的未公开图像，在 72 个采样点对 ADG_443_NN、TSM_NN 和 CHL_NN 进行评估。随后，在马格达莱纳河中进行了 36 个 SS 样品，通过先进的电子显微镜鉴定 Fe-NP。Sentinel-3B 卫星通过海洋中 OLCI 的强度揭示了 OCE1 中的颗粒积累。Magdalena 通道中 SS 的 Fe-NPs 强度也很高，将污染扩散到大片区域。