Journal
MARINE POLLUTION BULLETIN
Volume 173, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2021.112925
Keywords
Satellite analysis; Yellow coloration in water; Marine estuaries; Hazardous elements; Environmental quality
Funding
- Scientific Research Institute (Instituto de Investigacion Cientifica, IDIC) of the University of Lima
- Air Centre
- Brazilian National Council for Scientific and Technological Development (CNPq)
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Utilizing the Sentinel-3B OLCI satellite for marine matter analysis is an advanced technique on a global scale, aiming to evaluate the absorption of colored detrital and dissolved material, total suspended matter concentration, and chlorophyll-a. This study focused on analyzing these parameters and detecting the presence of Fe-NPs + HEs in suspended sediments in Barranquilla, Colombia. The satellite imaging revealed particulate accumulations and high Fe-NPs intensity in the Magdalena River, suggesting contamination spread to large regions.
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 Fenanoparticles (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 The study used the unpublished image of the Sentinel-3B OLCI satellite in the evaluation of ADG_443_NN, TSM_NN and CHL_NN in 72 sampled points.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.
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