Heavy Metal Contents of Municipal and Rural Dumpsite Soils and Rate of Accumulation by <i>Carica papaya</i> and <i>Talinum triangulare</i> in Uyo, Nigeria

Ebong, Godwin Asukwo; Akpan, Mary; Mkpenie, Victor

doi:10.1155/2008/854103

Cited by 60 publications

(48 citation statements)

References 18 publications

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“…All the same, the Cd content at the North bank location (Table 4) was slightly higher than that at Apir (Table 3). This enhanced level of Cd could be attributed to the dumping of PVC plastics, nickel-cadmium batteries, motor oil and disposal sludge on the dumpsites (Jarup, 2003, Ebong et al , 2008. The result of Cd concentration recorded in this study disagrees with the earlier one obtained in a similar study by Uba et al (2007) who reported higher concentration of Cd in refuse dumpsites soils.…”

Section: Resultscontrasting

confidence: 91%

Heavy Metals in Soils of auto- mechanic shops and refuse dumpsites in Makurdi Nigeria

Luter¹,

Terngu²,

Attah³

2011

Journal of Applied Sciences and Environmental Management

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Dumpsites soil samples in Apir and North Bank Auto-mechanic workshop locations in Makurdi, the Benue State capital located on latitude 7 0 44'N and longitude 8 0 32'E of the Equator situated in a valley in north central Nigeria, 100m above sea level, were collected and analyzed for content of selected heavy metals. These locations were chosen for investigation, being the major mechanic workshops sites in Makurdi; and most mechanic workshop waste are made up of metals. Atomic Absorption Spectrophotometer (UnicamSolaar32 model) was used for analyzing the digested soil samples for heavy metal content. Mean concentrations of the selected heavy metals in the dumpsite soil at Apir were 0.003 mg/Kg, 0.2414 mg/Kg, 0.2552 mg/Kg, 0.1882 mg/Kg and 0.0210 mg/Kg for Cd, Cr, Cu, Pb and Ni respectively while in North bank the mean concentrations were 0.0178 mg/Kg, 0.2688 mg/Kg, 0.1869 mg/Kg, 0.5701 mg/Kg and 0.2431 mg/Kg for Cd, Cr, Cu, Pb and Ni respectively .The results from both locations were higher than their controls indicating a clear case of pollution. Heavy metals from the wastes were suspected to be the feeding source in the soils. Such a situation could be regarded as "unsafe" as these metals are eventually taken up by plants and subsequently get into the food chain. Ground and surface water quality is also threatened as these heavy metals get leached and washed into them, making the water unfit for human consumption. Advocacy of waste disposal and its effects with legislation are recommended. This study is important to the host communities of the auto-mechanic locations as a source of awareness of the environmental effects of refuse dumpsite soils. It will also form a baseline of the environmental effects of indiscriminate dumping of refuse. Previous studies have not recognized auto-mechanic shops dumpsites and it will make for research in this area. @JASEM

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Section: Resultscontrasting

confidence: 91%

Heavy Metals in Soils of auto- mechanic shops and refuse dumpsites in Makurdi Nigeria

Luter¹,

Terngu²,

Attah³

2011

Journal of Applied Sciences and Environmental Management

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“…Birds have been recognized as good indictors of environmental contamination because of their abundance, wide distribution, feeding at different trophic levels, and their long life span [1,5,6]. Several studies have shown that chromium in phosphate fertilizers can subsequently accumulate in soil and become readily available to plants and wild birds [7,8] that forage on such plants. Black headed oriole is a farmland dependent bird with a conservation status of least concern but with global changes, it is imperative to study a particular species living in a sensitive habitat such as agricultural ecosystem [6].…”

Section: +mentioning

confidence: 99%

Untitled

2017

IJAWB

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Chromium concentration in Black-headed oriole Oriolus brachyrhynchus was carried out using Atomic Absorption Spectrometry (AAS) to determine the bioaccumulation level in the feather, liver heart, skin, carcass, nestling feather and egg so as to say which of these parts carried more contaminant. A total of 30 birds were trapped using mist net and 150 of these parts were obtained. A total of 9 eggs and 9 nestling were also collected from different nest in the study areas for investigation. Descriptive statistics were used to express chromium concentration mg/kg in the selected parts. Chromium concentration in the different organs of the bird caught in the three sample sites are as follows: feather has the highest mean values of 18.20±2.54mg/kg at Daudu, liver; 6.25±2.38mg/ kg at Daudu, heart; 691±0.23mg/kg at Buruku, skin; 4.43±2.0mg/kg at Daudu, carcass; 28.49±2.68mg/kg at Buruku, egg; 0.42±0.34mg/kg at Daudu and nestling feather; 28.22±3.32mg/kg at Buruku. A significant correlation (r 2 =0.824) existed between the skin and the carcass at (P˂0.01) and also (r 2 =0.668) between feather and skin at (P˂0.05). Similar correlation of (r 2 =0.721) existed between feather and the carcass at (P˂0.05), while the weight of feather correlated (r 2 =0.662) with that of the heart at (P˂0.05). In addition, a negative correlation (r 2 = -0.702) existed between the weight of skin and that of the heart at (P˂0.05). Chromium concentration has the highest mean value of 8.87±1.35mg/kg in maize at Daudu, and in rice; 5.72±2.61mg/kg at Daudu, while guinea corn; 6.92±1.39mg/kg also at Daudu. The concentration in soil and water was highest at Daudu with a mean of 27.04mg/kg and 0.61mg/l respectively. However, chromium concentration in the bird species in the study areas is still within permissible limit of WHO standard of 50mg/kg, but far above WHO permissible level for crop 1.30mg/kg and water 0.1mg/l which calls for concern, as cereals are the major food consumed by the people in the study areas. This calls for continuous monitoring.

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“…52dump soils which were beyond the normal range in soils. The degree of pollution of the refuse dumps by the metals was assessed using the Geoaccumulation Index (Igeo) classification (Table 1) [26]; contamination/pollution index [16]; Enrichment factor index [18]; Pollution load index (PLI) [22]; Quantification of soil contamination (QoC) [23]. On the basis of the quantification of anthropogenic input of the heavy metals in the soils presented in Table 10, the order of contamination with individual metals is as follows: Cr > Mn > Pb> Fe > Ni> Zn > Cd> Cu .…”

Section: Quantification Of Soil Contamination (Qoc)mentioning

confidence: 99%

Quantitative Changes in Soil Properties and Plant Uptake of Metals on Municipal Solid Waste Dumpsite in Nigeria

Ogunmodede

Ojo

2015

ILCPA

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ABSTRACT. In this work concentrations of Cd, Pb, Cr, Fe, Co, Ni, Cu, Zn and Mn were determined in soils and plants from refuse dumpsites in Ado Ekiti, Nigeria. The refuse dump soils were evaluation using contamination/pollution factor(C/P), Enrichment factor (EF), Index of Geoaccumulation (Igeo) and Pollution load index were calculated. The observation suggests high C/P values of the dump soil are polluted by Cd, Cr and Ni acts as a sink for heavy metals contributed from anthropogenic sources in the study area. C/P data, EF, PLI and (Igeo) indicated that these heavy metals originate from anthropogenic sources. Fe and Ni loads in plants from the refuse dump soils pronounced maximum concentration than Nigeria guideline. Transfer ratios for Cd, Co, Cu, Zn, Pb and Fe of plants from the control soils were higher than those from the refuse dump soils, INTRDUCTIONSoil is a vital resource for sustaining basic human needs, a quality food supply and a livable environment. It serves as a sink and recycling factory for both liquid and solid wastes known as dumpsite [1]. Dumpsites, especially in most third world countries, comprise of a higher proportion (50-90%) of organic materials [2]; however, a considerable proportions of plastic, paper, metal rubbish and batteries which are known to be sources of metals which may be hazardous to man and his environment are also present [3]. These metals are not biodegradable and have toxic effects on living organisms at certain level of concentration. Exposure of man to such metals may cause blood and bone disorders, kidney damage and decreased mental capacity and neurological damage [4]. Crops absorb whatever is present in the soil medium and therefore these hazardous metals are also absorbed and become bio-accumulated in the roots, stems, fruits, grains and leaves of the crops [5], which may finally be transferred to man in the food chain. Most edible crops are indiscriminate in their extraction of nutrients from the soil and thus will extract the non-desirable heavy metals alongside the required essential nutrients. The present study was carried out to examine the effects of municipal solid waste on soil physicochemical properties and identify the possible pathway for the transfer of heavy metals from these sites into the food chain.

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Heavy Metal Contents of Municipal and Rural Dumpsite Soils and Rate of Accumulation by Carica papaya and Talinum triangulare in Uyo, Nigeria

Cited by 60 publications

References 18 publications

Heavy Metals in Soils of auto- mechanic shops and refuse dumpsites in Makurdi Nigeria

Heavy Metals in Soils of auto- mechanic shops and refuse dumpsites in Makurdi Nigeria

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Quantitative Changes in Soil Properties and Plant Uptake of Metals on Municipal Solid Waste Dumpsite in Nigeria

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