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Wyszukujesz frazę "Eyankware, Moses Oghenenyoreme" wg kryterium: Autor


Wyświetlanie 1-4 z 4
Tytuł:
A holistic review of heavy metals in water and soil in Ebonyi SE, Nigeria; with emphasis on its effects on human, plants and aquatic organisms
Autorzy:
Eyankware, Moses Oghenenyoreme
Obasi, Philip Njoku
Powiązania:
https://bibliotekanauki.pl/articles/1840786.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Heavy Metal
Water
Soil
Human
Uptake
Nigeria
Opis:
A comprehensive review of literature was carried out to evaluate the presence of heavy metals (HMs), with a view to study its effect on man, plants and aquatic organisms in Ebonyi State, southeastern Nigeria. From reviewed literature it was observed that the major source of HM in soil and water can be attributed to anthropogenic activities such as mining and quarrying. Geogenic activities were also implicated by some scholars. Detail analysis showed that 62 % of HMs in water and soil is attributed to mining, while 23 % is attributed to indiscriminate waste disposal, and 15 % is due of other human and geogenic activities. The accumulation of HMs in plants, soil and water poses a serious risk to human, plants and aquatic organisms within the study area. The occurrence of HMs in soil and water if not properly monitored may tend to increase in years to come and this may have negative impact on plants and aquatic organisms. Severe health effects of humans are inevitable. Therefore, constant re-evaluating of HM in water and soil in the area is highly required.
Źródło:
World News of Natural Sciences; 2021, 38; 1-19
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Re-evaluating coastal aquifer using graphical and geochemical approach. A case study of Niger Delta Region, Nigeria
Autorzy:
Eyankware, Moses Oghenenyoreme
Ulakpa, Ruth Oghenerukevwe Eyankware
Ike, Joy
Powiązania:
https://bibliotekanauki.pl/articles/1193350.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Chloride - Sulfate Mass Ratio
Corrosion
Larson–Skold Index
Niger Delta Region
Revelle Index
groundwater
plots
seawater intrusion
Opis:
The study was carried out in coastal region of Niger Delta, Nigeria. This study was aimed at evaluating the effect of seawater intrusion and corrosion tendency on coastal aquifer. In other to achieve this aim, 24 groundwater samples was measured and analyzed for various hydrochemical parameters. Results obtained from the study revealed that groundwater was considered to fresh water based on TDS value obtained. Findings from geochemical model showed that 71 % of groundwater samples showed trace of seawater intrusion, while the remaining 29 % showed no trace of seawater intrusion. The value obtained from corrosivity indices such as Chloride-Sulfate Mass Ratio (CSMR) revealed that 33% of groundwater showed no galvanic corrosion potential, 67% showed galvanic corrosion potential, findings obtained from Revelle Index (RI) showed that 2 % of groundwater was not influenced by salinization, 96 % was slightly influenced by salinization and 2% strongly influenced by salinization. Values obtained from Larson-Skold Index (LSI) showed that groundwater samples were classified to be high in corrosion expect for sample locations pH/07 and 23. The plot of Cl¯/HCO3¯ against Cl¯ revealed that 98% of groundwater were classified to be slightly/moderately influenced by sea water intrusion, 2 % was strongly influenced by seawater. Findings from Chadba plots suggested that 97 % of groundwater were of Ca2+ - Mg2+- ˗ Cl¯ water type, 2% were of Na+ ˗ Cl¯ water type and 1% is of Ca2+ - Mg2+ - HCO3¯ water type. On a general note, it was observed that seawater intrusion slightly influenced groundwater of the study area.
Źródło:
World Scientific News; 2021, 154; 133-151
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heavy metals concentration and distribution in soils around Oshiri and Ishiagu lead – zinc mining areas, southeastern Nigeria
Autorzy:
Igwe, Ezekiel Obinna
Ede, Christian Ogobuchi
Eyankware, Moses Oghenenyoreme
Powiązania:
https://bibliotekanauki.pl/articles/1193469.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Heavy metals
Lead
Mining activities
Soil pollution
Southeastern Nigeria
zinc
Opis:
The study area is characterized by ubiquitous ore deposits within the underlying Asu River Group of the southern Benue Trough of Nigeria. The extensive mineralization resulted in widespread artisan and unlawful mining activities, necessitating the need for the assessment of the effects on soils in the area. Careful evaluation of the soils was undertaken to give account of heavy metals concentrations and distribution, and pollution level in soils across the lead – zinc mines. The soil samples were digested and chemically analysed using Atomic Absorption Spectrophotometer (AAS). Results showed concentrations of heavy metals of the soil samples in the order trend Zn>Pb>Mn>Cd>Cu>Fe> Ni>Co>Cr and Pb>Zn>Mn>Fe>Cu>Cd>Ni>Cr>Co in both Oshiri and Ishiagu areas. Cd showed high contamination in the soils with higher amount of contamination occurring in Oshiri. Findings also revealed Co, Fe Cu, Mn, Zn, Pb and Ni whose Igeo’s values indicated uncontaminated to moderate contamination have an insignificant contribution to the pollution in the study area while Cd showed highest Igeo with moderate contamination. Co, Cr, Ni, Pb and Zn show deficiency to minimal enrichment while Cd recorded very high enrichment 23.95 – 37.48 and 25.66 – 34.21 mk/kg in the Oshiri and Ishiagu areas respectively. Cd showed high index of contamination ranging from 7.21 – 13.89, while other metals showed no index of contamination in the area. Pollution load index indicates that only few sites in Oshiri area require urgent rectification measures. The food chain in the area is not safe due to possible biomagnifications; hence arable soil around the mines is not suitable for production of food crops.
Źródło:
World Scientific News; 2021, 158; 22-58
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quantitative analysis of physical and chemical attribute of soil around power-line dumpsite at Boji-Boji Owa, Delta State, Nigeria
Autorzy:
Ulakpa, Ruth Oghenerukevwe Eyankware
Ulakpa, Wisdom Chukwuemeke
Eyankware, Moses Oghenenyoreme
Powiązania:
https://bibliotekanauki.pl/articles/1031480.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Boji-Boji Owa
Cation exchange capacity
Delta State
Exchangeable cation
Nigeria
Solid waste
dumpsite
Opis:
The study ascertains some physiochemical properties of soils around Power-line dumpsite at Boji-Boji Owa, Delta State, Nigeria. In order to evaluate the effects of municipal solid waste dumpsites on soils, soil samples were collected with the aid of a graduated soil auger at depths of 0 – 10 cm, 15 – 25 cm and 25 – 40 cm, representing top to sub and bottom soil sand also 500 m away from dumpsites which serves as control site (R). Samples were taken for laboratory analyses to determine the level of physiochemical properties such as: pH, grain size distribution, Electrical Conductivity (Ec), Organic Carbon (OC), Organic Matter (OM), Available Phosphorous (Av. P), Overall Nitrogen (ON), Basic Cations and Cation Exchange Capacity (CEC) in soils. Results obtained from the study, revealed that values between waste dumpsite and control site were significantly different. Findings showed that the pH value in sampled soils from studied dumpsites ranged from 6.22±0.06 and 7.97±0.04 while the mean pH value for controlled site was 39.8±0.08. The increase in the pH value of the sampled soil indicated an increase in CEC mean value of soil which ranged from 4.73±0.30 and 10.28±0.46 mEq/100 g while a low pH indicated low CEC mean value of 1.50±0.22 mEq/100 g. This is because there exists a positively significant relationship between pH, OC, OM, Av.P, ON, basic cations and CEC. As Ec varied between 692±4.50 to 918±4.03 μScm-1, OC varied between 0.05±0.00 to 0.64±0.03%, OM varied between 0.10±0.06 to 0.57±0.07%, Av.P varied between 8.98±0.06 to 25.36±0.22 mg/kg and ON varied between 0.44±0.01 to 0.93±0.03% across all studied dumpsites.
Źródło:
World News of Natural Sciences; 2021, 35; 118-134
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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