Sediment Quality Status of Two Creeks in the Upper Bonny Estuary, Niger Delta, in Relation to Urban/Industrial Activities

Daka, Erema R.; Moslen, M.; Ekeh, Calista A.; Ekweozor, I. K. E.

doi:10.1007/s00128-007-9151-5

Cited by 20 publications

(13 citation statements)

References 12 publications

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“…Station 2 had the highest pH value in the month of May, station 4 in the month of June and station 4 also in the month of July. The values obtained for sediment pH levels during this study were consistent with those of Daka et al [16] who recorded range between of 2.5 -3.5 in Azuabie creek of the upper Bonny Estuary. These values are acidic and would pose serious challenges to organisms in nature.…”

Section: Discussionsupporting

confidence: 92%

Assessment of Physicochemical Characteristics of Sediment from Nwaja Creek, Niger Delta, Nigeria

Adesuyi¹,

Ngwoke²,

Akinola³

et al. 2016

GEP

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Sediments are complex environments, with varying physicochemical characteristics, such as composition and type of organic matter, particle size distribution, and pH. Contaminated sediment is a significant environmental problem affecting many marine, estuarine and freshwater environments throughout the world. Most assessments of water quality have historically focused on water-soluble compounds, with relatively little attention paid to sediment. The aim of this research is to assess the physical and chemical parameters of sediments from Nwaja Creek, Niger Delta, Nigeria. Monitoring of this sediment quality is an important part of preserving and restoring the biological integrity of water bodies as well as protecting aquatic life, wild life and human health. Sediment samples from Nwaja Creek were sampled from seven sampling stations along the creek for over three months May to July, 2015, rainfall peak period, for assessment of their physical and chemical characteristics, such as grain size, organic carbon, pH, conductivity, nitrate and phosphate. These parameters are known to influence the interactions and dynamics of pollutants within sediment matrix. Sediment particle size distribution indicates that they have higher proportion of clay (clay > silt > sand), the mean percentage composition of clay, silt and sand ranged between 64.28% ± 22.04%-72.36% ± 14.00%, 18.71% ± 12.03%-27.32% ± 22.17% and 8.40% ± 6.28%-9.76% ± 4.59% respectively. TOC in the study area is generally above 1% across all stations during the study period with a range between 0.98% and 4.58%. Minimal monthly and spatial variations are observed in particle distribution, pH (3.9-8.5) and phosphate (5.5-15.5 kg/mg) while significant variations are observed in conductivity (23.0-567.0 uS/cm), total organic carbon (0.98%-4.58%) and nitrate (0.45-11.9 mg/kg) concentration. It is concluded that physicochemical characteristics of the sediments from Nwaja Creek are influenced by anthropogenic sources

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Section: Discussionsupporting

confidence: 92%

Assessment of Physicochemical Characteristics of Sediment from Nwaja Creek, Niger Delta, Nigeria

Adesuyi¹,

Ngwoke²,

Akinola³

et al. 2016

GEP

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“…The concentration of heavy metals observed in this study is comparable to the range reported in fish (mudskipper) muscle tissues [5] but generally higher compared to values recorded in different fish species from the study area [31]. The implication of this is gradual accumulation of heavy metal in biota of the Azuabie creek which is attributable to anthropogenic activities in the study area including the discharge of domestic, industrial and municipal wastes into the creek [32,33,34,35,5]. The levels of Pb, Cd and Ni observed in this study also exceeded the recommended maximum permissible limits [28] and [36].…”

Section: Discussionsupporting

confidence: 78%

Concentration of Heavy Metals and Health Risk Assessment of Consumption of Fish (Sarotherodon melanotheron) from an Estuarine Creek in the Niger Delta, Nigeria

Moslen¹,

Miebaka²

2017

IOSR JESTFT

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“…The recognition of this connection and the need to protect human health, recreation and fisheries production led to the early development of water quality regulations and monitoring methods [1,2]. Contaminats of aquatic ecosystems can be confirmed by determining levels of contaminants in water, sediment and organisms [3,4]. Industrial effluents, agricultural run-offs, transport, burning of fossil fuels, animal and human excretions, geologic weathering and domestic waste contribute to the metal levels in water bodies [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Effect of Effluents From Warri Refinery Petrochemical Company WRPC on Water and Soil Qualities of “Contiguous Host” and “Impacted on Communities” of Delta State, Nigeria

Nduka¹,

Orisakwe²

2009

TOEPTJ

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This study investigated the effect of refinery effluents on different sources of potable water supply in two areas of Niger Delta contiguous host and impacted on communities of Delta State, Nigeria (surface water, shallow well water and borehole water) in Ekpan, its adjoining communities and creeks. Since open and underground water bodies are regarded as final recipient of most environmental pollutant, we sought through the study to provide data on pollutant load of potable water supply of the study area. Cadmium, chromium, lead and manganese were determined using Atomic Absorption spectrophotometry; physico-chemical parameters such as nitrate,nitrite, pH, Biological oxygen demand BOD, Total hardness TH, salinity and electrical conductivity EC were all determined using their standard methods. Surface water of Aja-Etan and Ijala had highest levels of cadmium (1.45±0.01 and 1.20 ± 0.0(mg/l), that of ifie-kporo and Ekpan had highest lead (1.00 ± 0.01mg/l). Ekpan borehole water is more acidic (4.79± 0.01) than others. Agigba and Ajamimogha surface water had highest level of manganese (2.40 ± 0.03 and 2.20 ± 0.03mg/l). With the exception of Ekpan shallow well, BOD and hardness were in highest concentration in surface water. Some of the parameter were above WHO standards and USEPA maximum contaminant level MCL.

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Sediment Quality Status of Two Creeks in the Upper Bonny Estuary, Niger Delta, in Relation to Urban/Industrial Activities

Cited by 20 publications

References 12 publications

Assessment of Physicochemical Characteristics of Sediment from Nwaja Creek, Niger Delta, Nigeria

Assessment of Physicochemical Characteristics of Sediment from Nwaja Creek, Niger Delta, Nigeria

Concentration of Heavy Metals and Health Risk Assessment of Consumption of Fish (Sarotherodon melanotheron) from an Estuarine Creek in the Niger Delta, Nigeria

Effect of Effluents From Warri Refinery Petrochemical Company WRPC on Water and Soil Qualities of “Contiguous Host” and “Impacted on Communities” of Delta State, Nigeria

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