scholarly journals Heavy metals assessment of soils in and around Kama-Otto and Kwotto artisanal mining of mica, cassiterite and tantalite in Nasarawa state, Nigeria

2018 ◽  
Vol 6 (2) ◽  
pp. 135
Author(s):  
Usman Isa Osu ◽  
Agbaji Edith Bolanle ◽  
Omenesa Hadiza
Keyword(s):  
Contamination Factor ◽  
Pollution Assessment ◽  
Atomic Emission ◽  
Pollution Load Index ◽  
Soil Samples ◽  
Pollution Load ◽  
Plasma Atomic Emission ◽  
Index Method ◽  
Artisanal Mining ◽  
Geochemical Parameters

This study assesses the level of heavy metal in Soils within the vicinity of artisanal mining of Mica, Cassiterite and Tantalite in Nasarawa State, Nigeria. Soil samples of Kama-otto and Kwotto artisanal mining were collected and analyzed using mass-plasma Atomic emission spectroscopy (MP-AES). Samples were also collected in Angwan-Mada, a non-artisanal mining environment, for comparison. Pollution assessment of soil samples using the following geochemical parameters such as contamination factor (CF), pollution load index (PLI), and Enrichment factor (EF), Nemerow index method (IIN) and Geo-accumulating index (Igeo) were carried out. The results indicate an elevation in pollution status in the order of Kama-otto mining, Kwotto mining, Kama-otto, Kwotto and Angwan-mada. The concentrations of Cd, Cr and Mn were significant in the sampled areas (P < 0.05).  

scholarly journals Evaluation of Soil and Ambient Air Pollution Around Un-reclaimed Mining Bodies in Nižná Slaná (Slovakia) Post-Mining Area

Toxics ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 96
Author(s):  
Lenka Demková ◽  
Július Árvay ◽  
Lenka Bobuľská ◽  
Martin Hauptvogl ◽  
Miloslav Michalko ◽  
...  
Keyword(s):  
Soil Enzymes ◽  
Contamination Factor ◽  
Ambient Air ◽  
Mining Area ◽  
Pollution Load Index ◽  
Soil Samples ◽  
Hazardous Substances ◽  
Ambient Air Pollution ◽  
Pollution Load ◽  
Bioaccumulation Index

Thirty soil samples were taken, and the same number of moss (Dicranum scoparium) and lichen (Pseudevernia furfuracea) bags were exposed to detect environmental pollution in the former mining area Nižná Slaná. Soil and ambient air are influenced by hazardous substances, which leak from old mining bodies due to insufficient or completely missing reclamation. The total content of the risk elements (As, Cd, Co, Cu, Fe, Hg, Mn, Ni, Sb, Se, Pb, Zn) was determined in soil, moss, and lichen samples and in the bodies of Leccinum pseudoscabrum. Biological (soil enzymes—urease, acid phosphatase, alkaline phosphatase, fluorescein diacetate (FDA), ß-glucosidase) and chemical properties (pH) were determined in soil samples. Contamination factor (Cf), degree of contamination (Cd), pollution load index (PLI), and enrichment factor (EF) were used for soil and relative accumulation factor (RAF) for air quality evaluation. Contamination factor values show serious pollution by Cd, Fe, Hg, and Mn. Pollution load index confirmed extremely high pollution almost at all evaluated areas. Soil enzymes reacted to soil pollution mostly by decreasing their activity. Mosses and lichens show differences in the accumulation abilities of individual elements. Regular consumption of L. pseudoscabrum would provide the dose of Cd and Hg below the limit of provisional weekly intake. Based on the bioaccumulation index (BAF) values, L. pseudoscabrum can be characterized as an Hg accumulator.

scholarly journals Heavy metal contamination in bottom sediments of saline endorheic lakes of Kulunda and Barabinsk steppes (Western Siberia, Russia)

2019 ◽  
Vol 80 ◽  
pp. 03009
Author(s):  
Marina Kolpakova
Keyword(s):  
Bottom Sediments ◽  
Metal Contamination ◽  
Western Siberia ◽  
Heavy Metal Contamination ◽  
Geoaccumulation Index ◽  
Contamination Factor ◽  
Pollution Load Index ◽  
Pollution Load ◽  
Geochemical Parameters ◽  
The Common

The article presents the results of assessment of heavy metals contamination in bottom sediments of saline lakes located on the territory of Kulunda and Barabinsk steppes of Western Siberia, Russia. The territory is characterized by large amount of lakes (more than 5000), including the Chany lake, which is the biggest lake of south of Western Siberia. By calculation the geochemical parameters, such as Enrichment factor, Contamination factor, Geoaccumulation index, Pollution load index, the common level of bottom sediments was classified as unpolluted. However, in comparison with average level of bottom sediment on that territory the lake sediments are enriched with the following elements: Sr> Rb> Zn> V> Cr> Ni> Cu> As> Pb> Th> U> Mn> Fe> K> Ti.

scholarly journals Assessment of Soil Pollution in the Ishaqi Project Area- Salah Al-Dean Governorate, Iraq

2020 ◽  
pp. 382-388
Author(s):  
Moutaz A. Al-Dabbas ◽  
Marwa A. Abdullah
Keyword(s):  
Soil Pollution ◽  
Chemical Elements ◽  
Contamination Factor ◽  
Pollution Load Index ◽  
Soil Samples ◽  
Pollution Load ◽  
Project Area ◽  
Local Pollution ◽  
Class 1 ◽  
Geo Accumulation

Ten soil samples were collected from Ishaqi project  area, Salah Al-Dean Governorate, and analysed for chemical elements (Fe2O3, Al2O3, CaO, K2O Na2O, Co, Zn, Cu, and Pb) to detect the pollution in the study soil using the indices of geo-accumulation (I-geo), contamination factor (CF), and pollution load index (PLI), The results of I-geo indicate that the soil of Ishaqi project area is unpolluted with Pb,  Co and slightly polluted with Zn and Cu.  The results of CF for Zn, Cu, and  Co showed class 2 of moderate contamination and class 1 of low contamination in some samples while those for Pb demonstrated class 1 –of  low contamination. The Pollution Load Index (PLI) values for Co, Zn, Cu, and Pb showed class 2 of local pollution.

scholarly journals Evaluation of heavy metals in agricultural soils from Katsina state Nigeria

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Aliyu Ibrahim Yaradua ◽  
Adamu Jibrin Alhassan ◽  
Abdullahi Nasir ◽  
Kabir Ibrahim Matazu ◽  
Aminu Usman ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Enrichment Factor ◽  
Agricultural Soil ◽  
Agricultural Soils ◽  
Sampling Site ◽  
Contamination Factor ◽  
Pollution Load Index ◽  
Soil Samples ◽  
Pollution Load

This work contributes to the monitoring of Agricultural soil pollution in Katsina State, North western Nigeria by assessing the degree of heavy metal pollution in Agricultural soil samples. The study was conducted in the year 2017 within some catchment areas located within the 3 senatorial zones that constitute to make up the state (Katsina senatorial zone: Birchi, Dutsinma and Katsina; Daura senatorial zone: Daura, Ingawa and Zango; Funtua senatorial zone: Dabai, Funtua, Kafur, Malunfashi and Matazu).  Analysis for the concentration of these heavy metals; Cr, Cd, Fe, Ni, Mn, Pb and Zn was conducted by the use of AAS (by Atomic Absorption Spectrophotometry) method. . Several indices were used to assess the metal contamination levels in the Agricultural soil samples, namely; Geo-accumulation Index (Igeo), Enrichment Factor (EF), Contamination Factor (CF), Degree of Contamination (Cd) and Pollution Load Index (PLI). The result of this study has shown that generally among the heavy metals evaluated, the highest concentration was observed for Fe (range: 20.195-38.347 ppm), followed by Zn (range: 0.528-1.134 ppm), Pb (range: 0.256-0.627 ppm), Mn (range: 0.261-0.572 ppm) and Cr (range: 0.093-0.344 ppm). While Cd has the lowest concentration (range: 0.022-0.043 ppm). For all the site sampled the heavy metal Ni was below detection level (BDL). From the results of heavy metals I-geo values, according to Muller’s classification,  soil samples from Birchi, Daura, Dutsinma, Kafur and Zango were unpolluted (class 0) while soil samples from Dabai, Funtua, Ingawa, Katsina, Malunfashi and Matazu are moderately polluted (class 1). The result for the enrichment factor has shown that with the exception of the heavy metal Fe, which shows significant enrichment for all the sites sampled all the other heavy metals show deficiency to minimal enrichment. Also based on the contamination factors for all soil samples the heavy metal Fe has a CF values range of 1.2861-2.3240, indicating that the Agricultural soil samples are moderately contaminated with Fe. In contrast, the rest of the heavy metals exhibit low contamination in general. The value of PLI ranges from 0.2408 to 0.4935, indicating unpolluted to moderate pollution, with the sampling site for Katsina displaying the highest PLI value while the sampling site of Ingawa has the lowest PLI. The Eri values for all samples are all < 40, presenting low ecological risk.  The results suggest that the Agricultural soils samples from Katsina state has low contamination by the heavy metals evaluated.Key words: Agricultural soils, Heavy metals, Katsina state, Pollution load index, Contamination factor.

scholarly journals Ecological Risk Assessment of Heavy Metals in Soil of an Open Dump along Old Ikare Road Owo, Ondo State, Nigeria

2019 ◽  
pp. 1-11
Author(s):  
J. O. Olayinka-Olagunju ◽  
A. M. Olatunji-Ojo ◽  
A. Adejuyigbe ◽  
H. A. Ikuesan ◽  
S. E. Abubakar
Keyword(s):  
Heavy Metals ◽  
Contamination Factor ◽  
Pollution Load Index ◽  
Dry Season ◽  
Soil Samples ◽  
Pollution Load ◽  
Wet Season ◽  
Heavy Metal Concentrations ◽  
Regulatory Limits ◽  
Ondo State

Aims: To investigate the heavy metal concentrations in soil samples collected from an open dumpsite in a rural community (Aba Idi-Mangoro) in Owo, Ondo State and to compare the observed values with the regulatory limits. This study also aimed to determine the pollution levels using tools like contamination factor, pollution load index and geoaccumulation index. Study Design: Field study design was use in this study. Place and Duration of Study: Soil samples were collected from Aba Idi-Mangoro in Owo, Ondo State, Nigeria between July 2015 and February 2016 to represent the wet and dry seasons. Methodology: A total of 96 soil samples were collected (6 samples on each visit and the site was visited twice a month). The samples were taken to the Prof. Julius Okojie Central Research Laboratory at the Federal University of Technology, Akure, Ondo State, Nigeria. In the laboratory, samples were air dried to remove the moisture. 2 g of the sampes were digested into HNO3, HCl, HF and HClO4, and AA Spectrophotometer was used to analyse the concentrations of the heavy metals. Results: Out of the 8 heavy metals assessed, 6 were above the regulatory limits. The order of heavy metal concentrations for the wet season is: Fe>Mn>Zn>Cu>Pb>Ni>Cr>Co>Cd and the dry season is as follows: Fe>Zn>Mn>Pb>Cu>Ni>Co>Cr>Cd. When the mean concentrations of the samples for the wet season were compared to the dry season, Mn (0.009), Cd (0.035), Cr (0.044) and Co (0.014) differ significantly (p<0.05). No significant difference was found in Fe, Co, Ni and Zn. It was observed from the overall results that the concentrations of heavy metals were higher during the dry season than in the wet season. The contamination factor (CF), pollution load index and geo-accumulation index values of Fe was extremely high in the two seasons while it varies at different collection times for the other metals. Conclusion: Due to the high presence of some of the heavy metals found in the soil, the study suggests that water and sediment samples from nearby river(s) within the community should also be examined.

scholarly journals Evaluating the Contamination Degree and Risk Assessment of Heavy Metals Around Active Dumpsite Environment: A Case Study of Ozoro Community, Delta State, Nigeria

2021 ◽  
pp. 39-51
Author(s):  
A. N. Ogbaran ◽  
H. Uguru
Keyword(s):  
Heavy Metals ◽  
Enrichment Factor ◽  
Geoaccumulation Index ◽  
Cadmium Concentration ◽  
Contamination Factor ◽  
Pollution Load Index ◽  
Soil Samples ◽  
Pollution Indices ◽  
Pollution Load ◽  
The Government

The use of lowlands for refuse collection point (dumpsite) is a very common practice in Nigeria. However, people cultivated the areas within the vicinity of the dumpsites, without knowledge of the risk of these heavy metals. Therefore, this study was done to evaluate the risk of heavy metals pollution of soils within the vicinity of an active dumpsite. Four (4) soil samples (from 4 locations) at a depth of 0–20 cm were collected from the vicinity of the dumpsite. The heavy metals (e.g. iron lead, nickel and cadmium) concentration of the collected soil samples were analyzed according to American Society for Testing and Materials (ASTM) International methods. Pollution indices (contamination factor, enrichment factor, pollution load index and geoaccumulation index) were used to ascertain the level of heavy metals contamination of the dumpsite area. Results obtained from the soil tests revealed that, the dumpsite area had high heavy metals concentrations. The heavy metals concentrations were of this ranged: iron 3420 mg kg-1 to 4323 mg kg-1, lead 28.92 mg kg-1 to 58.84 mg kg-1, nickel 2.89 mg kg-1 to 6.91 mg kg-1, and cadmium from 1.04 mg kg-1 to 2.05 mg kg-1. The heavy metals concentrations ranked as Fe > Pb > Ni > Cd. Pollution indices results showed that cadmium had the highest contamination factor, enrichment factor, pollution load index and geoaccumulation index values, which portrayed that the dumpsite soil was heavily contaminated with cadmium. Results of the correlation showed a strong correlation (r = 0.87) between iron and nickel, indicating that the two heavy metals got their pollution from the source(s). Results obtained from this study will further help the government and environmental regulators to plan and carried out suitable remediation strategies, to clean the environment.

scholarly journals The content of copper and heavy metals in the multilayer soil mud from the Buchim lake under the Buchim mine's waste dump, Republic North Macedonia

Tehnika ◽  
2020 ◽  
Vol 75 (4) ◽  
pp. 297-304
Author(s):  
Todor Serafimovski ◽  
Goran Tasev ◽  
Trajce Stafilov
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Porphyry Copper ◽  
Contamination Factor ◽  
Pollution Load Index ◽  
Pollution Load ◽  
Mining Areas ◽  
Target Value ◽  
Standard Values ◽  
Almost All

The intense mineral extraction in mining areas during the last several decades has produced a large amount of waste material and tailings, which release toxic elements to the environment. The aim of the study was to determine in two vertical profiles/sections (1 and 2) the heavy metal contents of samples derived from six samples, three from each section located in the porphyry copper mine Buchim area, Republic North Macedonia. The results have been compared to new Dutchlist (DL) and Kabata-Pendias (KP) standards and the following was concluded: As values ranged 14.985÷60.131 mg kg-1 with 4 samples above the target value of the DL (29 mg kg-1 As) and 6 above standard values given in KP value (5 mg kg-1 As), in that context Co values ranged 11 ÷57 mg kg-1 with 6 values above the target value of the DL (9 mg kg-1 Co) and 5 above standard values given in KP value (12 mg kg-1 Co), Cr with range 29.32÷75.76 mg kg-1 with 6 over KP value (10 mg kg-1 Cr) and none above the target value of the DL (100 mg kg-1 Cr), Cu with range 2694÷6749 mg kg-1 with 6 samples above the target value of the DL (36 mg kg-1 Cu) and 6 above standard values given in KP value (20 mg kg-1 Cu), Ni with range 59.57÷105.98 mg kg-1 with 6 samples above the target value of the DL (35 mg kg-1 Ni) and 6 above standard values given in KP value (20 mg kg-1 Ni), Pb with range 27.06 ÷96.08 mg kg-1 with 1 sample above the target value of the DL (85 mg kg-1Pb) and 6 above standard values given in KP value (25 mg kg-1Pb), Zn with range 147÷273 mg kg-1 with 6 over target value of the DL (140 mg kg-1 Zn) and 6 above standard KP value (64 mg kg-1 Zn), V with range 34.44÷92.57 mg kg-1 with 5 over target value of the DL (42 mg kg-1 V) and one above KP value (90 mg kg-1 V).In order to compare the level of contamination, the contamination factor (𝐶𝑓 𝑖 ), degree of contamination (Cd), and pollution load index (PLI) were computed. Serious numbers were found for Cu, as, Zn, Co and Ni, which exceeded standard values at almost all samples from both vertical sections. Compared from section 1 and section 2, pollution load index increased by 13.43%, which in almost all samples was classified as heavily polluted to extremely polluted. The fact that mining activities at the Buchim Mine last for almost 40 years, the presence of heavy metals in soils at a serious level is understandable. The high level of contamination is a result of heavy metal persistence and non-biodegradability.

scholarly journals Lead and Cadmium Levels in Residential Soils of Lagos and Ibadan, Nigeria

2017 ◽  
Vol 7 (13) ◽  
pp. 42-55 ◽  
Author(s):  
Adebola A. Adeyi ◽  
Babafemi A. Babalola
Keyword(s):  
Low Income ◽  
Residential Buildings ◽  
Control Sample ◽  
Contamination Factor ◽  
The United States ◽  
Pollution Load Index ◽  
Vulnerable Groups ◽  
Pollution Load ◽  
Residential Areas ◽  
Lead And Cadmium

Background. Lead and cadmium are components of paints sold in Nigeria. These heavy metals are associated with adverse neurological, cardiovascular and other human health effects. Objectives. This study assesses the levels of lead and cadmium in topsoil of residential areas in Lagos and Ibadan potentially resulting from painting of buildings. Methods. Samples were pre-treated prior to metal determination using atomic absorption spectrophotometry. Metal speciation was determined using modified Tessier sequential extraction. Soil characteristics were determined by standard methods. Soil contamination was assessed using contamination factor, geo-accumulation and pollution load indices. The United States Environmental Protection Agency integrated exposure uptake biokinetic (IEUBK) model was used to estimate and predict children's blood lead levels (BLL). Results. Lead and cadmium concentrations in residential areas in Lagos and Ibadan ranged from 1.56–419 mg/kg and not detected–2.8 mg/kg, respectively. Metal contamination factor and pollution load index were highest at the Lagos low income settlement. Results of IEUBK modelling showed that the Lagos low income settlement had the highest probability density for children between 1–7 years of age with an estimated BLL of &gt;10 μg/dL. This population made up less than 0.01% of those within this age range. Conclusions. Lead and cadmium concentrations in soil around the residential buildings were higher than those in the control sample. Contamination factor and pollution load index showed significant contamination in average and low income settlements. These results suggested that there was accumulation of the metals in the soil, which can persist in the environment. This may pose serious health risks, especially to vulnerable groups such as children. Competing Interests. The authors declare no competing financial interests.

scholarly journals Applying Some Indices for Soil Pollution Assessment in Northern Industrial Area from Erbil Governorate

2021 ◽  
Vol 26 (4) ◽  
pp. 45-58
Author(s):  
Nashmeel Khudhur ◽  
Sidra Qubad Yassin ◽  
Ahmed Saman Hassan ◽  
Mortatha Nawzad Omar
Keyword(s):  
Heavy Metals ◽  
Soil Pollution ◽  
Surface Soil ◽  
Contamination Factor ◽  
Pollution Assessment ◽  
Industrial Area ◽  
Pollution Load Index ◽  
Growth Effect ◽  
Lepidium Sativum ◽  
Soil Site

Soil pollution by some heavy metals including: Cr, Mn, Fe, Ni, Cu, Zn, As, Mo, Cd and Pb from northern industrial area of Erbil City was assessed. The contamination indices including: geoaccumulation (Igeo), contamination factor (CF), enrichment factor (EF), degree of contamination (Cdeg), pollution load index (PLI) and element contamination index (ECI) were applied to assess soil pollution in Erbil North Industrial area at three sites (for both surface and sub-surface soils). Maximum Fe value 34243.6 ppm was recorded in sub-surface soil (site 2). Maximum values 265.4, 248.8, 98.23 and 397.45 ppm were recorded for Cr, Ni, Cu and Zn at sub-surface soil (site 3). Whereas, maximum values of 22.52, 5.36, 23.9, 6.12 and 65.67 ppm were recorded for As, Mo, Ag, Cd and Pb at surface soil (site 3). Results of analysed heavy metals for soil Cr, Mn, Fe, Ni, Cu, Zn, As, Mo, Ag, Cd and Pb have shown that the studied sites were severely contaminated with Cd, so the maximum detected Cd concentration was 6.12 ppm in surface soil (300 meters away from the industrial area). The soil pollution in the studied area was classified as moderate to strong surface and sub-surface soil contamination. Behavioral toxicity experiment showed slight growth effect on Lepidium sativum L.

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