Elemental contaminants in groundwater: A study of trace metals from residential area in the vicinity of an industrial area in Lagos, Nigeria

Awofolu, Omotayo Rafiu

doi:10.1007/s10669-006-0157-z

Cited by 7 publications

(5 citation statements)

References 20 publications

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“…The mean Al concentrations were lower than the permissible levels (0.2 mg/l) recommended by WHO (2008) at all the examined samples. The concentrations of Al in the present study were lower than those recorded by Awofolu (2006); and Abdul Ghaffar et al (2009).…”

Section: Heavy Metals In Watercontrasting

confidence: 79%

Some ecological studies on the impact of magnetic field on the tap water

Khater

Ibraheim

2016

Egypt. J. of Aquatic Biolo. and Fish.

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The aim of the present study is to know the effects of the magnetic field on water purification. Samples were collected from tap water of Faculty of Science, Zagazig University, Zagazig, Egypt, and then treated using the magnetic field. Water was exposed to a weak static magnetic field (MF) generated from a stack of magnets (B = 18 G). After this treatment, the physico-chemical parameters of water were measured, as well as the heavy metal concentrations. The results showed that the magnetic field has a very great effect on physico-chemical parameters of the water , as it decreases its concentrations in water samples. The magnetic field with an intensity of 18 G has a very great effect on water purification, but it is not recommended to use it in treating water pollution without sufficient studies on its safety on the living organisms live in and drinking it.

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Section: Heavy Metals In Watercontrasting

confidence: 79%

Some ecological studies on the impact of magnetic field on the tap water

Khater

Ibraheim

2016

Egypt. J. of Aquatic Biolo. and Fish.

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“…Besides, leachate from these substances could contaminate ground and surface water systems. Extensive research works have discussed other sources of groundwater contamination (Awofolu 2006;Anonymous 2007), but little is mentioned on the impact of artisan activities on the ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Concentrations and pattern of Fe, Cu, Cr, and Zn contamination in the soils of Akure, Nigeria

et al. 2011

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An assessment was made on twenty-eight topsoils collected from seven sites with intense artisan activities in the city of Akure, Nigeria, using geochemical approach in order to establish anthropogenic influence on metal contamination and to assess the severity of the contamination in the urban environment. Concentrations of Fe, Cu, Zn, and Cr were determined in the samples by atomic absorption spectrophotometry. The results revealed between 137-and 165-fold elevation of Fe, between 17-and 94-fold elevation of Cu, between 50-and 137-fold elevation of Zn, and between 1-and 3-fold elevation of Cr in topsoil relative to background levels. This indicates that except for Cr, soil contaminations by the metals were due to anthropic sources such as mechanic and vulcanizers workshops. The current average levels of copper exceeded the target value in Nigeria and in many developed countries, while Zn and Cr are generally lower than the respective soil quality guidelines. The contamination/pollution index maps figured out mechanic workshop as the main source of diffuse contamination and also show the influence of the point sources of contamination to urban topsoils. Cu contamination found around the soils of the mechanic/battery charger workshop is potentially serious (severe pollution), and this may pose health risk to people dwelling around these sites or within the metropolis. Children could be at greater risk than adults, because of their hand-to-mouth behaviors that increase their exposure potential.

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“…Rui et al (2008) have shown that a high-level of fertilizer use has become one of the major sources of heavy metals contamination in groundwater around the agricultural areas. Numerous studies have reported on elevated levels of heavy metals in groundwater in agricultural fields in different parts of the world such as South West Bank, Palestine (Malassa et al, 2013), Lagos, Nigeria (Awofolu, 2006), Hail region, Saudi Arabia (Abdel-Satar et al, 2017). These include Pb, Zn, As and Ni derived from the fertilizers (Rajappa et al, 2010;Zalidis et al, 2002), or cadmium which is found in phosphate fertilizers (Awofolu, 2006;Malidareh et al, 2014;McCauley et al, 2009).…”

Section: 6mentioning

confidence: 99%

“…Numerous studies have reported on elevated levels of heavy metals in groundwater in agricultural fields in different parts of the world such as South West Bank, Palestine (Malassa et al, 2013), Lagos, Nigeria (Awofolu, 2006), Hail region, Saudi Arabia (Abdel-Satar et al, 2017). These include Pb, Zn, As and Ni derived from the fertilizers (Rajappa et al, 2010;Zalidis et al, 2002), or cadmium which is found in phosphate fertilizers (Awofolu, 2006;Malidareh et al, 2014;McCauley et al, 2009). Past studies in Kahe catchment have concluded that the groundwater quality is still good (Mckenzie et al, 2010), but the recent increase in groundwater-based irrigation may have impacted the groundwater quality.…”

Section: 6mentioning

confidence: 99%

“…The fertilizers applied were used for a sugarcane plantation, paddy rice, onions, watermelon and tomatoes, purposely to increase the production. In groundwater, heavy metals can occur naturally due to the dissolution of rock materials in the underlying aquifer (Awofolu, 2006), but often in very low concentrations. Its contamination can also occur, however, from anthropogenic activities such as inappropriate disposal of wastes and industrial effluents, and application of agricultural fertilizers.…”

Section: Concentrations Level Of Heavy Metals Concentration In Ground...mentioning

confidence: 99%

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Groundwater recharge estimation and quality on the southern slopes of mount Kilimanjaro, Tanzania

Lwimbo

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This study was undertaken to estimate groundwater recharge rates using three methods (water table fluctuation (WTF), chloride mass balance (CMB) and soil moisture balance (SMB), as well as assessing the impact use of the pesticides and fertilizers on groundwater quality in a Kahe catchment located on the Southern slope of Mt. Kilimanjaro, Tanzania. The estimated recharge rates of the WTF method yielded a higher value of about 248.4 million m 3 /year, whereas that of CMB and SMB methods was 156.0 and 132.1 million m 3 /year, respectively. The concentration of pesticide residues was below the detection limit, while, NO 3 - levels of sampled groundwater were averaged about 18.40 ± 4 and 7.6 ± 1.7 mg/l in the wet and dry season, respectively. An elevated level of nitrate (NO 3 - ), sulfate (SO 4 2- ), phosphate (PO 4 3- ), and ammonium (NH 4 + ) was found nearby the large-scale sugarcane farms. Generally, the groundwater chemistry was dominated by magnesium-sodium-bicarbonate (Mg-Na-HCO 3 ) water type. The cations levels were in the trend of Mg 2+ > Na + > Ca 2+ > K + , whereas anions were HCO 3 - > Cl - > SO 4 2- for both seasons. The heavy metals concentration of Pb, Cd, Fe, Mn, Zn and Cu for both seasons were averaged approximately 0.08 ± 0.03, 0.11 ± 0.03, 0.16 ± 0.02, 0.11 ± 0.01, 0.46 ± 0.05 and 0.55 ± 0.02 mg/l, respectively. Whereas the concentration was higher in shallow groundwater than deep boreholes and most of them were located around the western-eastern zone of the Kahe catchment. The findings from this study provided reliable data information for future monitoring programs of groundwater resources management in Kahe catchment, Tanzania.

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Elemental contaminants in groundwater: A study of trace metals from residential area in the vicinity of an industrial area in Lagos, Nigeria

Cited by 7 publications

References 20 publications

Some ecological studies on the impact of magnetic field on the tap water

Some ecological studies on the impact of magnetic field on the tap water

Concentrations and pattern of Fe, Cu, Cr, and Zn contamination in the soils of Akure, Nigeria

Groundwater recharge estimation and quality on the southern slopes of mount Kilimanjaro, Tanzania

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