Effects of pollution on the geochemical properties of marine sediments across the fringing reef of Aqaba, Red Sea

Al-Rousan, Saber; Al-Taani, Ahmed A.; Rashdan, Maen

doi:10.1016/j.marpolbul.2016.05.038

Cited by 28 publications

(10 citation statements)

References 37 publications

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“…The sediments were richer in fine particles (silt and clay particles) than coarse particles. As noted by Al‐Rousan et al (2016), the presence of high levels of silt and clay particles in reservoir sediments enhances the availability of such micronutrients such as zinc (Zn), iron (Fe), manganese (Mn) and copper (Cu). Field observations also revealed the upstream zone of the reservoirs had well‐formed delta deposits composed of coarse sand particles and the midstream zone had well‐formed tapering deposits of silt particles, while the downstream zone had well‐formed wedge shape deposits composed of clay particles.…”

Section: Resultsmentioning

confidence: 99%

Physicochemical quality of reservoir sediment in irrigation dams of Northern Ghana

Abagale

Adongo

2022

Lakes & Reservoirs

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The present study assessed the physicochemical quality of irrigation dam reservoir sediment deposits for possible use in enriching soils in Northern Ghana. The surface area of the 9 study reservoirs was divided into upstream, midstream and downstream sections, with 18 undisturbed sediment samples taken at 0–30 cm depth for determining the soil dry bulk density, and 30 samples collected for analysis of particle size distribution, pH, macronutrients, CEC, EC, ESP and SAR. Reservoir sediments were rich in plant macronutrients (K, Ca and Mg) and organic matter and high in silt and clay content. The dry bulk density ranged from 1.10 ± 0.02 g/cm3 to 1.39 ± 0.08 g/cm3, while the sediment particle sizes were 10.3%–24.8% sand, 43.7%–53.1% silt and 30.6%–37.8% clay. The sediment pH ranged from a moderately acidic level of 5.48–6.64, with high levels of organic carbon (1.37%–2.96%) and organic matter (2.36%–5.10%). The total nitrogen (N) was found to be low (0.14%–0.29%), while the phosphorus (P) ranged from 2.6% to 4.9%, about 10 times higher than the FAO recommended normal average range. Except for the potassium (K) in two of the present study reservoirs, the exchangeable bases concentrations in the sediments were within acceptable levels for crop production. The CEC values were within moderate levels (13.69 to 29.84 cmol/kg), corresponding to a non‐expanding, chemically inactive clay, while the salinity and sodicity were absent, with the EC varying between 0.03 and 0.27 dS/m and ESP ranging from 1.8% to 12.9%. Pearson's correlation analyses indicated both positive and negative relationships among the various physicochemical parameters. Based on the present study results, desilted irrigation reservoir sediments, being rich in all plant nutrients, except for N, appear to have great potential to enhance crop production for farmers.

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Section: Resultsmentioning

confidence: 99%

Physicochemical quality of reservoir sediment in irrigation dams of Northern Ghana

Abagale

Adongo

2022

Lakes & Reservoirs

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“…The presence of serpentinites, peridotite, and basalt rocks in marine sediment can contribute to the high concentration of Cr, Ni, and Co in the ST station. Several previous studies had stated that igneous rock has potential to release heavy metals such as Cu, Cr, Co, Ni and Mn due to the chemical weathering processes of forming minerals in the parent rock [7,17]. The deposited heavy metals in marine sediments will either adsorb to form mineral lattice structures or remain as free metal ions [18].…”

Section: Heavy Metals Concentrationmentioning

confidence: 99%

Distribution and Accumulation of Heavy Metals in Marine Sediment from Marudu Bay, Sabah

Musta

Mamun²,

Yaccup³

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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This study aims to analyse the distribution and factors that control the accumulation of heavy metals in marine sediment from Marudu Bay, Sabah. The sediment samples originated from the various types of rocks, namely ultrabasic rock, basic rock, and chert of ophiolite sequence, and sedimentary rock of the Kudat Formation. A total of 20 sediment core samples were systematically sliced for physico-chemical analysis such as pH value, organic matter (OM), and particle size distribution (PSD). Seven heavy metals are analysed in this research, namely cobalt (Co), chromium (Cr), copper (Cu), manganese (Mn), nickel (Ni), vanadium (V), and zinc (Zn) which is measured using the ICP-OES instrument. Descriptive statistics were used to study the distribution and accumulation of heavy metals from two main stations, namely Sg Karang Station (ST) and Kg Tampakan Station (SK). The results from both stations showed various levels of heavy metal concentration. The average concentration of Mn is between 2.19 mg/kg - 94.77 mg/kg and followed by Cr (0.87 mg/kg - 21.11 mg/kg). For Ni, Zn, Cu, V, and Co, the concentration range were between 0.28 mg/kg - 11.48 mg/kg, 0.94 mg/kg - 6.95 mg/kg, 0.55 mg/kg - 6.01 mg/kg, 0.64 mg/kg - 3.77 mg/kg, and 0.02 mg/kg - 0.85 mg/kg respectively. The result of correlation analysis showed the significant negative relationship between pH with Co, Cr, Ni, Mn, and Zn indicated the increasing concentration in acidic condition. A strong negative correlation between percentage of sand and Co, Cr, Mn, and Ni indicated the decreasing concentration in coarse sediment particle size. However, there was a strong positive correlation between percentage of sand and V due to the association in the carbonate minerals. The Kruskal-Wallis tests showed there were no significant means difference of the percentage of heavy metals based on sample depth and the distance from the shoreline except for V and Mn.

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“…GoA is the only marine port for Jordan, and is highly vulnerable to pollution, where all marine-related activities are concentrated within a few kilometers of the coast (27 km). In addition, many economic, industrial, and recreational activities are taking place along the Jordanian coastline, many of which are of potential environmental impacts [6][7][8][9]. Additionally, the region plans to have a number of large coastal projects (such as the Red-Dead Sea conduit, new resorts, and ports relocation), which will certainly accelerate the degradation cycle of existing environmental conditions and threaten these unique marine communities [7].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, many economic, industrial, and recreational activities are taking place along the Jordanian coastline, many of which are of potential environmental impacts [6][7][8][9]. Additionally, the region plans to have a number of large coastal projects (such as the Red-Dead Sea conduit, new resorts, and ports relocation), which will certainly accelerate the degradation cycle of existing environmental conditions and threaten these unique marine communities [7]. Signs of human impacts were reported [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Gulf of Aqaba Coastal Water, Jordan

Al-Taani

Rashdan

Nazzal

et al. 2020

Water

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(1) Background: The Gulf of Aqaba (GoA) supports unique and diverse marine ecosystems. It is one of the highest anthropogenically impacted coasts in the Middle East region, where rapid human activities are likely to degrade these naturally diverse but stressed ecosystems. (2) Methods: Various water quality parameters were measured to assess the current status and conditions of GoA seawater including pH, total dissolved solids (TDS), total alkalinity (TA), Cl−, NO3−, SO42−, PO43−, NH4+, Ca2+, Mg2+, Na+, K+, Sr, Cd, Co, Cr, Cu, Fe, Mn, Pb, and Zn. (3) Results: The pH values indicated basic coastal waters. The elevated levels of TDS with an average of about 42 g/L indicated highly saline conditions. Relatively low levels of inorganic nutrients were observed consistent with the prevalence of oligotrophic conditions in GoA seawater. The concentrations of Ca2+, Mg2+, Na+, K+, Sr, Cl−, and SO42− in surface layer varied spatially from about 423–487, 2246–2356, 9542–12,647, 513–713, 9.2–10.4, 22,173–25,992, and 317–407 mg/L, respectively. The average levels of Cd, Co, Cr, Cu, Fe, Mn, Pb and Zn ranged from 0.51, 0.38, 1.44, 1.29, 0.88, 0.38, and 6.05 µg/L, respectively. (4) Conclusions: The prevailing saline conditions of high temperatures, high evaporation rates, the water stratification and intense dust storms are major contributing factors to the observed seawater chemistry. The surface distribution of water quality variables showed spatial variations with no specific patterns, except for metal contents which exhibited southward increasing trends, closed to the industrial complex. The vast majority of these quality parameters showed relatively higher values compared to those of other regions.

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Effects of pollution on the geochemical properties of marine sediments across the fringing reef of Aqaba, Red Sea

Cited by 28 publications

References 37 publications

Physicochemical quality of reservoir sediment in irrigation dams of Northern Ghana

Physicochemical quality of reservoir sediment in irrigation dams of Northern Ghana

Distribution and Accumulation of Heavy Metals in Marine Sediment from Marudu Bay, Sabah

Evaluation of the Gulf of Aqaba Coastal Water, Jordan

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