Seasonal Variation in Heavy Metal Distribution in the Sediment of Major Dams in Ekiti-State

Adefemi, O. S.; Olaofe, O.; Asaolu, S. S.

doi:10.3923/pjn.2007.705.707

Cited by 34 publications

(31 citation statements)

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“…Concentrations of Cr, Mn, and Zn are lower than those of these metals in sediments of the Sehyah Dam and Keban Dam Lake, Turkey(Cevik et al 2009;Kulahci and Sen 2008). However, the range of concentrations of Cu is higher than the corresponding values in the sediments of the Wadi Al-Arab and Ziqlab Dams in Jordan, and the Ataturk Dam and the Egbe Dam in Pakistan(Karadede and Unlu 2000;Abu- Rukah 2001;Ghrefat and Yusuf 2006;Adefemi et al 2007). The concentration of Fe ranked second out of seven studies.…”

mentioning

confidence: 84%

Application of geoaccumulation index and enrichment factor for assessing metal contamination in the sediments of Kafrain Dam, Jordan

Ghrefat

Yousef

Rosen

2010

Environ Monit Assess

228

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An investigation is reported of the degree of metal pollution in the sediments of Kafrain Dam and the origin of these metals. Fourteen sampling sites located at Kafrain Dam were chosen for collecting the surface, cutbank, and dam bank sediment samples. The sediment samples have been subjected to a total digestion technique and analyzed by atomic absorption spectrometer for metals including Pb, Zn, Cd, Ni, Co, Cr, Cu, Mn, and Fe. XRD analyses indicate that the sediments of Kafrain Dam are mainly composed of calcite, dolomite, quartz, orthoclase, microcline, kaolinite, and illite reflecting the geology of the study area. The enrichment factor (EF) and geoaccumulation index (I(geo)) have been calculated and the relative contamination levels assessed in the study area. The calculations of I(geo) are found to be more reliable than of those of EF. The enrichment of metals in the study area has been observed to be relatively high. I(geo) results reveal that the study area is not contaminated with respect to Ni, Co, Cr, Cu, and Mn; moderately to strongly contaminated with Pb; and strongly to extremely contaminated with Cd and Zn. The high contents of Pb, Cd, and Zn in the study area result from anthropogenic activities in the catchment area of the dam site. These sources mainly include the agricultural activities, sewage discharging from various sources within the study area (effluent of wastewater treatment plants, treated and untreated wastewaters, and irrigation return water), and the several industries located in the area. Degrees of correlations among the various metals in the study area are suggested by the results and the intermetallic relationship.

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mentioning

confidence: 84%

Application of geoaccumulation index and enrichment factor for assessing metal contamination in the sediments of Kafrain Dam, Jordan

Ghrefat

Yousef

Rosen

2010

Environ Monit Assess

228

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“…These heavy metals detected in the soil samples were below the permissible limits but the iron contents of the samples which ranged from 1942.13 to 2205.9 mg/kg (figure 3) were above the permissible limits of 1000 mg/kg. Fe has been found to occur at high concentrations in Nigerian soil (Adefemi et al, 2007). The high level of Fe could be as a result of the natural basic rock material of the soil (Qian, et al, 1996) Mn is the second most abundant heavy metal after Iron and can find its way into soil from combustion products of motor vehicles, coal burning, pesticides, fertilizers and methylcyclopentadienyl manganese tricarbonyl (MMT) a gasoline additive ((ATSDR, 2000).…”

Section: Heavy Metalsmentioning

confidence: 99%

Physicochemical Parameters and Heavy Metals Content of Soil Samples from Farms in Minna

Abdulhamid

Agbaji²,

Gimba³

et al. 2015

ILCPA

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ABSTRACT. Physico-chemical properties and heavy metals content of soils were determined from seven farms in Minna, central Nigeria. Conventional analytical methods were employed to determine the physico-chemical properties and the heavy metals were analysed by atomic absorption spectrometry. The result showed that pH values ranged from 6.64 -7.70 indicating slight acidity to slight alkalinity of the soils. The total organic carbon values ranged from 0.95-2.25 % resulting in the presence of organic matter (1.63-3.87). The electrical conductivity values ranged from 17-37 µS/cm. The cation exchange capacity of the soil samples ranged from 3.68-5.15 cmol/kg. The heavy metals levels were in the following range: Cd (0.00018-0.00134 mg/g), Cu

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“…If these sites are cleared for redevelopment projects without any form of assessment, people using such land may face environmental hazards. Monitoring the concentrations of heavy metals in the soil and the sediment is important since knowledge of the heavy metal levels in soil and sediments give vital information regarding their sources, distribution and degree of pollution (Odefemi et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Chemical partitioning of iron, cadmium, nickel and chromium in contaminated soils of south-eastern Nigeria

Osakwe

2013

Chemical Speciation & Bioavailability

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Seasonal Variation in Heavy Metal Distribution in the Sediment of Major Dams in Ekiti-State

Cited by 34 publications

References 1 publication

Application of geoaccumulation index and enrichment factor for assessing metal contamination in the sediments of Kafrain Dam, Jordan

Application of geoaccumulation index and enrichment factor for assessing metal contamination in the sediments of Kafrain Dam, Jordan

Physicochemical Parameters and Heavy Metals Content of Soil Samples from Farms in Minna

Chemical partitioning of iron, cadmium, nickel and chromium in contaminated soils of south-eastern Nigeria

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