Heavy metals concentrations in coal and sediments from River Ekulu in Enugu, Coal City of Nigeria

Adaikpoh, Edwin O.; Nwajei, Godwin E.; Ogala, Jude E.

doi:10.4314/jasem.v9i3.17343

Cited by 45 publications

(40 citation statements)

References 3 publications

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“…Elevated levels of heavy metals in environmental compartments, such as aquatic sediments, may pose a risk to human health due to their transfer in aquatic media and uptake by living organisms, thereby entering the food chain (Sin et al 2001;Varol and Sen 2012). Heavy metals may enter a freshwater reservoir from a variety of sources, either natural or anthropogenic (Adaikpoh et al 2005;Akoto et al 2008). Generally, in natural ecosystems, most of the metals are present in very low concentrations and are mostly derived from rock and soil weathering (Reza and Singh 2010;Varol and Sen 2012).…”

Section: Introductionmentioning

confidence: 99%

Occurrence, risk assessment, and source apportionment of heavy metals in surface sediments from Khanpur Lake, Pakistan

Iqbal

Shah

2014

J Anal Sci Technol

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Background: The present study was carried out to assess the seasonal variations, source apportionment, and risk assessment of heavy metals (Cd, Cr, Cu, Fe, Mn, Pb, and Zn) in the surface sediments from the Khanpur Lake, Pakistan. Methods: Composite samples are collected and processed to measure the concentrations of heavy metals in Ca(NO 3 ) 2 extract and acid extract of the sediments using flame atomic absorption spectrophotometry.

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Section: Introductionmentioning

confidence: 99%

Occurrence, risk assessment, and source apportionment of heavy metals in surface sediments from Khanpur Lake, Pakistan

Iqbal

Shah

2014

J Anal Sci Technol

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“…Heavy metals contamination of rivers is one of the main problems in many fast growing cities because the maintenance of water quality and sanitation infrastructure do not follow the population and urbanization growth especially in developing countries (Sundaray et al, 2006;Karbassi et al, 2007;Akoto et al, 2008;Ahmad et al, 2010).Trace metals enter the rivers from variety of sources; they can be either natural or anthropogenic (Bem et al, 2003;Wong et al, 2003;Adaikpoh et al, 2005;Akoto et al, 2008). Usually, in unaffected environments, the concentration of most of the metals is very low and is mostly derived from the mineralogy and the weathering (Karbassi et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Physico-chemical analysis of Logone River water at Moundou City in Southern Chad

Hisseien¹,

Kamga²,

Mahamat³

2015

Int. J. Bio. Chem. Sci

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The physico-chemical parameters and some heavy metal concentrations in the Logone River water at Moundou City, Chad, are studied for two stations from July 2013 to December 2014, one upstream and another downstream of the city. Standard methods are used. A total of twenty-two physico-chemical parameters were determined by spectrophotometers showed clear seasonal variations of; BOD 5, COD, sulphate, phosphate, and nitrate, among the stations. The Moundou City wastewater negatively impacted the concentrations of physicochemical parameters of Logone River water samples when compared with the World Health Organization (WHO) permissible limits. It was observed that the water quality parameters exceed the permissible limits downstream of the river:BOD 5 (198mg/l), COD (897 mg/l), MES (287 mg/l), F(1.87 mg/l), heavy metals Cr (0,934 mg/l), Fe (5,55 mg/l) Cu (0,294 mg/l), Pb (17 mg/l), As (0,894 mg/l), Mb (14,2 mg/l). This study shows that industrial discharge into Logone River seriously contributes to the pollution of the river at the level which poses health and environmental hazards to those using it in downstream for domestic and agricultural purposes.

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“…Many activities such as land use/land cover change Narsimlu et al 2015;Kumar et al 2017), sewage sludge, mine waste, industrial waste, waste water (Gautam et al 2013), atmospheric pollutants, pesticides, and fertilizer applications are the main activities controlling the flow of river and contributors of heavy metals discharged into rivers, lakes, estuaries, and marines (Chen et al 2004;Adaikpoh et al 2005; Lepane and Heonsalu 2007;Amin et al 2014;Singh et al 2016Singh et al , 2017. Beside these wastes, rivers also carry large quantities of solid wastes, including thousands of animal carcasses and hundreds of human corpses are dumped into the active channel of the rivers and on its banks every day in recent years.…”

Section: Introductionmentioning

confidence: 99%

Assessment of heavy metal contamination in the sediment of the River Ghaghara, a major tributary of the River Ganga in Northern India

et al. 2017

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The present study includes a systematic analysis of sediment contamination by heavy metals of the River Ghaghara flowing through the Uttar Pradesh and Bihar in Indian Territory. To estimate the geochemical environment of the river, seven heavy metals, namely Co, Cu, Cr, Ni, Cd, Zn, and Pb were examined from the freshly deposited river bed sediment. All the sediment samples were collected on a seasonal basis for the assessment of fluctuation in 2014-2015 and after preparation samples were analyzed using standard procedure. Result showed that heavy metal concentration ranged between 11.37 and 18.42 mg/kg for Co, 2.76 and 11.74 mg/kg for Cu, 61.25 and 87.68 mg/kg for Cr, 15.29 and 25.59 mg/kg for Ni, 0.21 and 0.28 mg/kg for Cd, 13.26 and 17.59 mg/kg for Zn, 10.71 and 14.26 mg/ kg for Pb in different season. Metal contamination factor indicates the anthropogenic input in the river sediment was in the range of (0.62-0.97) for Co, (0.04-0.26) for Cu, (0.68-0.97) for Cr, (0.22-0.38) for Ni, (0.70-0.93) for Cd, (0.14-0.19) for Zn, and (0.54-0.71) for Pb. The highest contamination degree of the sediment was noticed as 4.01 at Ayodhya and lowest as 3.16 at Katerniaghat. Geo-accumulation index was noted between (0 and 1) which showed that sediment was uncontaminated to moderately contaminated and may have adverse affects on freshwater ecology of the river. Pollution load index (PLI) was found highest at Chhapra which was 0.45 and lowest at Katerniaghat which was 0.35 and it indicates that the river sediment has a low level of contamination. Significant high correlation was observed between Co, Cu, and Zn, it suggests same source of contamination input is mainly due to human settlement and agriculture activity. Positive correlation between Zn, Co, Cu, Cr, and Ni indicated a natural origin of these elements in the river sediment. Cluster analysis suggests grouping of similar polluted sites. The strong similarity between Co, Zn, Pb, Ni, Cu, and Cd showed relationship of these metals come from the same origin, which is possibly from natural and anthropogenic input which was also confirmed by correlation analysis. Using the various pollution indicators it was found that the river bed sediment is less contaminated by toxic metals during the study but the sediment quality may degrade in the near future due to increasing anthropogenic inputs in the river basin, hence proper management strategies are required to control the direct dumping of wastewater in the river.

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Heavy metals concentrations in coal and sediments from River Ekulu in Enugu, Coal City of Nigeria

Cited by 45 publications

References 3 publications

Occurrence, risk assessment, and source apportionment of heavy metals in surface sediments from Khanpur Lake, Pakistan

Occurrence, risk assessment, and source apportionment of heavy metals in surface sediments from Khanpur Lake, Pakistan

Physico-chemical analysis of Logone River water at Moundou City in Southern Chad

Assessment of heavy metal contamination in the sediment of the River Ghaghara, a major tributary of the River Ganga in Northern India

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