Hazardous elements present in coal nanoparticles in a Caribbean port region in Colombia

Neckel, Alcindo; Osorio-Martinez, Jorge; Pinto, Diana; Bodah, Brian William; Adelodun, Bashir; Silva, Luis

doi:10.1016/j.scitotenv.2022.156363

Cited by 8 publications

(27 citation statements)

References 74 publications

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“…This can cause a high accumulation of sediment in the waters of the Cartagena Basin [35]. According to Neckel et al [36], sediments are capable of coupling dangerous chemical elements in the form of NPs and ultrafine particles, which is highly harmful to human health and aquatic fauna and flora, in addition to compromising the livelihood of local fishermen and threatening tourist activities.…”

Section: Study Areamentioning

confidence: 99%

“…Samples of sedimentary material from the bottom of the waters of Cartagena Bay were collected at 12 collection points in the regions of Bocagrande, Isla Tierra Bomba, and Playa Blanca using the Draga Van Veen collector. The samples were obtained at an approximate distance of 200 m from the bank, with a minimum spacing of 1000 m between each point [36,37], during January (summer season) and October (winter season) of 2020 and 2021. Cartagena Bay (Figure 1) is highly frequented annually by tourists worldwide [38].…”

Section: Procedures For Collecting and Analyzing Sampled Sedimentsmentioning

confidence: 99%

“…Before carrying out the analyses, all laboratory equipment, together with the glassware used, went through a manual washing process using Milli-Q water filtered by an ultrapure organic solvent and inorganic membrane (Whatman Anodisc at 20 nm), intending to avoid contamination by external impurities concerning the sampled (homogenized) material [39]. After drying the samples, the material was subjected to HR-TEM (high-resolution transmission electron microscopy) (New York, USA) and FE-SEM (field emission scanning electron microscopy) (New York, USA) analyses (Figure 2), which enabled the quantitative identification of the types of major chemical elements present in the sampled material [36]. High-resolution use of HR-TEM (JEOL-2010F, 200 keV) coupled to a ray scanning detector in an Oxford energy dispersive pattern (STEM) and EDS (energy dispersive X-ray microanalysis) was utilized to determine the chemical elements present in particles <100 nm [36].…”

Section: Procedures For Collecting and Analyzing Sampled Sedimentsmentioning

confidence: 99%

“…After drying the samples, the material was subjected to HR-TEM (high-resolution transmission electron microscopy) (New York, USA) and FE-SEM (field emission scanning electron microscopy) (New York, USA) analyses (Figure 2), which enabled the quantitative identification of the types of major chemical elements present in the sampled material [36]. High-resolution use of HR-TEM (JEOL-2010F, 200 keV) coupled to a ray scanning detector in an Oxford energy dispersive pattern (STEM) and EDS (energy dispersive X-ray microanalysis) was utilized to determine the chemical elements present in particles <100 nm [36]. The crystalline phases in the sedimented material were determined using XRD, allocated to a Siemens diffractometer (BRUKER AXS) (model D-5000 (θ-θ)).…”

Section: Procedures For Collecting and Analyzing Sampled Sedimentsmentioning

confidence: 99%

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Environmental Unsustainability in Cartagena Bay (Colombia): A Sentinel-3B OLCI Satellite Data Analysis and Terrestrial Nanoparticle Quantification

Neckel,

Taleb,

Ibrahim

et al. 2024

Sustainability

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Human actions that modify terrestrial and aquatic environments contribute to unsustainability, influencing the economy and human health. Urban environments are responsible for the dispersion of pollution and nanoparticles (NPs), which can potentially harm the health of human populations and contaminate the fauna and flora of aquatic ecosystems on a global scale. The objective of this study is to analyze the dissemination of nanoparticles in Cartagena Bay, Colombia, during the strong winds/low runoff season of January 2020 and the weak winds/high runoff season of October 2021. This was accomplished using images from the Sentinel-3B OLCI (Ocean Land Color Instrument) satellite in conjunction with an analytical chemical analysis of sediments collected in the study area in a laboratory with advanced electron microscopy. It was possible to obtain, on average, a sample of suspended sediments (SSs) every 1000 m in the areas of Bocagrande, Isla de Tierra Bomba, and Playa Blanca, which were analyzed in the laboratory with X-ray diffraction (XRD) and electron transmission and scanning microscopies. Images obtained in the summer of 2020 and winter of 2021 by the Sentinel 3B OLCI satellite were selected at a distance of 1 km from each other and analyzed for the following variables: chlorophyll (CHL_NN), water turbidity (TSM_NN), and suspended pollution potential (ADG443_NN). In addition to of evaluating georeferenced maps, they were subjected to an analysis within the statistical and K-Means clustering model. The laboratory analysis of SSs showed the presence of potentially toxic NPs, responsible for contamination that may harm the health of the local population and marine ecosystems. The K-Means and satellite image analysis corroborated the laboratory analyses, revealing the source of the pollution and contamination of Cartagena Bay as the estuary located close to its center.

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Section: Study Areamentioning

confidence: 99%

Section: Procedures For Collecting and Analyzing Sampled Sedimentsmentioning

confidence: 99%

Section: Procedures For Collecting and Analyzing Sampled Sedimentsmentioning

confidence: 99%

Section: Procedures For Collecting and Analyzing Sampled Sedimentsmentioning

confidence: 99%

See 2 more Smart Citations

Environmental Unsustainability in Cartagena Bay (Colombia): A Sentinel-3B OLCI Satellite Data Analysis and Terrestrial Nanoparticle Quantification

Neckel,

Taleb,

Ibrahim

et al. 2024

Sustainability

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“…Although coal mining activities exert harmful impacts on the local environment and cause problems for public health, coal mining remains an important economic activity related to the production of electricity globally [1][2][3][4]. Open pit coal mining, conducted without environmental safeguards, causes contamination of the soil and water sources by introducing the following hazardous elements which are harmful to human health: arsenic, cadmium, lead, mercury, radionuclides, thorium, and uranium, among others [5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Brazilian Coal Tailings Projects: Advanced Study of Sustainable Using FIB-SEM and HR-TEM

et al. 2022

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The objective of this study is to obtain a more detailed assessment of particles that contain rare-earth elements (REEs) in abandoned deposits of Brazilian fine coal tailings (BFCTs), so as to aid current coal mining industries in the identification of methodologies for extracting such elements (Santa Catarina State, Brazil). The BFCT areas were sampled for traditional mineralogical analysis by X-ray Diffraction, Raman Spectroscopy and nanomineralogy by a dual beam focused ion beam (FIB) coupled with field emission scanning electron microscopy (FE-SEM) and high-resolution transmission electron microscopy (HR-TEM) coupled with an energy dispersive X-ray microanalysis system (EDS). The results show that the smaller the sampled coal fines were, the higher the proportion of rare-earth elements they contained. Although the concentration of REEs is below what would normally be considered an economic grade, the fact that these deposits are already ground and close to the surface negate the need for mining (only uncovering). This makes it significantly easier for REEs to be extracted. In addition, owing to their proximity to road and rail transport in the regions under study, the opportunity exists for such resources (BFCTs) to be utilized as a secondary market as opposed to simply being discarded as has been done in the past.

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Nanoparticles containing hazardous elements and the spatial optics of the Sentinel-3B OLCI satellite in Amazonian rivers: a potential tool to understand environmental impacts

Silva

Bodah

Lozano

et al. 2023

Environ Sci Pollut Res

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The Amazon River is the longest river in the world. The Tapajós River is a tributary to the Amazon. At their junction, a marked decrease in water quality is evident from negative impacts from the constant activity of clandestine gold mining in the Tapajós River watershed. The accumulation of hazardous elements (HEs), capable of compromising environmental quality across large regions is evident in the waters of the Tapajós. Sentinel-3B OLCI (Ocean Land Color Instrument) Level-2 satellite imagery with Water Full Resolution (WFR) of 300 m was utilized to detect the highest potential for the absorption coefficient of detritus and gelbstoff in 443 m −1 (ADG443_NN), chlorophyll-a (CHL_NN) and total suspended matter concentration (TSM_NN), at 25 points in the Amazon and Tapajós rivers (in 2019 and 2021). Physical samples of riverbed sediment collected in the field at the same locations were analyzed for NPs and ultra-fine particles to verify the geospatial findings. The riverbed sediment samples collected in the field were studied by Transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM), with selected area electron diffraction (SAED), following laboratory analytical procedures. The Sentinel-3B OLCI images, based on the Neural Network (NN) were calibrated by the European Space Agency (ESA), with a standard average normalization of 0.83 µg/mg, containing a maximum error of 6.62% applied to the sampled points. The analysis of the riverbed sediment samples revealed the presence of the following hazardous elements: As, Hg, La, Ce, Th, Pb, Pd, among several others. The Amazon River has significant potential to transport ADG443_NN (55.475 m −1 ) and TSM_NN (70.787 gm −3 ) in sediments, with the possibility of negatively impacting marine biodiversity, in addition to being harmful to human health over very large regions.

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Hazardous elements present in coal nanoparticles in a Caribbean port region in Colombia

Cited by 8 publications

References 74 publications

Environmental Unsustainability in Cartagena Bay (Colombia): A Sentinel-3B OLCI Satellite Data Analysis and Terrestrial Nanoparticle Quantification

Environmental Unsustainability in Cartagena Bay (Colombia): A Sentinel-3B OLCI Satellite Data Analysis and Terrestrial Nanoparticle Quantification

Brazilian Coal Tailings Projects: Advanced Study of Sustainable Using FIB-SEM and HR-TEM

Nanoparticles containing hazardous elements and the spatial optics of the Sentinel-3B OLCI satellite in Amazonian rivers: a potential tool to understand environmental impacts

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