Vulnerability of biological resources to potential oil spills in the Lower Amazon River, Amapá, Brazil

Araújo, Elizandra Perez; Abreu, Carlos Henrique Medeiros de; Cunha, Helenilza Ferreira Albuquerque; Brito, Alaan Ubaiara; Pereira, Newton Narciso; Cunha, Alan Cavalcanti da

doi:10.1007/s11356-022-24592-3

Cited by 10 publications

(26 citation statements)

References 35 publications

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“…The present study followed three main steps: (a) a data survey based on the environmental forensics performed in 2019 due to the environmental accident in the port of Santana [6] and the research coming from that forensics [9,12,13]; (b) a computational simulation of the observed hydrodynamics in May (rainy period) and November (dry period) (flow, tidal elevation, and current velocity); and (c) a hydrodynamic and Lagrangian transport model simulation for the pre-established scenarios involving potential claims in the environmental risk area. The experimental survey campaigns in 2019 provided detailed data on the discharge of water into the channel within a complete tidal cycle (12.5 h), in addition to bathymetry and velocity characteristics.…”

Section: Methodsmentioning

confidence: 99%

“…The experimental survey campaigns in 2019 provided detailed data on the discharge of water into the channel within a complete tidal cycle (12.5 h), in addition to bathymetry and velocity characteristics. Building a solid base of experimental information is necessary for model calibration and scenario simulation [9,12,13].…”

Section: Methodsmentioning

confidence: 99%

“…These dynamics often lead to the escalation of erosion and sedimentation [12,14]. The Amazon Coastal Zone has areas of high vulnerability associated with the sensitivity of the dominant estuarine and oceanic ecosystems (mangroves, riverbanks, floodplains, marshes, and vegetated islands) [13,15].…”

Section: Characterization Of the Study Sitementioning

confidence: 99%

“…The position of any particle at the next instant (P n+1 ) is determined by a second-order expansion in the Taylor series according to the previously recorded position (P n ). This transport is represented by several immaterial particles transported by currents defined by the hydrodynamic model [9,10,12,13].…”

Section: Modeling Conditionsmentioning

confidence: 99%

“…Φ is the Earth's rotational angular speed in the local coordinate system (rad s −1 ), and the terms with Φ are the Coriolis forces, where θ is the Latitude angle. ζ represents the free water surface elevation (m), and the components (q p , q E , q Ia , q Ie ) represent the balance of precipitation, evaporation, and inflow and outflow fluxes, respectively, per unit area [9,10,12,13].…”

Section: Modeling Conditionsmentioning

confidence: 99%

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Numerical Simulation of Oil Spills in the Lower Amazonas River

Demoner,

Teixeira,

Medeiros de Abreu

et al. 2023

Water

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In 2013, a slope slide took place at the Santana-AP channel that links to the Lower Amazon River’s North Channel, resulting in the sudden collapse of a substantial section of the Port of Santana and its infrastructure. This area houses liquid bulk terminals and pipelines with high pollution potential. The objective of the research is to evaluate the potential environmental impacts of an eventual oil spill in the very short term using a numerical hydrodynamic simulation model coupled with that of pollutant dispersion. The SisBaHiA® software, experimentally calibrated using acoustic methods (ADCP), was used to generate hypothetical scenarios in these areas with a substantial risk of landslides. Two hydrological scenarios stand out in the simulations: (a) November S-1 (dry) and (b) May S-2 (rainy). In S-1, the plume dispersion was higher during flood tides S-1a and S-1b, reaching 4 h urban slope areas, river mouths, tributaries (Matapi and Vila Nova), and environmental protection areas. At S-2, the plume spread was greater during the ebb tides S-2c and S-2d, affecting Macapá’s water supply system 12 h after the accident. The scenarios suggest the existence of high risks associated with the study hypotheses. The dispersion of the plume is directly proportional to the flow, indicating that local hydrodynamics is probably the most relevant dispersive factor. We conclude that the mitigation time for more severe effects is critical in the first 4 h because the coastal geographic feature tends to keep the plume in the Santana channel.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%