scholarly journals Study of Some Indicators of Environmental Pollution of Surface Soil for the City of Touggourt (Southeast Algeria)

2021 ◽  
Vol 20 (5) ◽  
Author(s):  
A. Benarabi ◽  
M. S. Nili ◽  
A. Douadi
Keyword(s):  
Enrichment Factor ◽  
Contamination Factor ◽  
Pollution Load Index ◽  
Industrial Wastes ◽  
Contamination Level ◽  
Pollution Indices ◽  
Manufacturing Companies ◽  
Pollution Load ◽  
Human Effects ◽  
The City

Soil is contaminated with various potentially harmful metals (PTMs). Therefore, the adequate protection of soil from contamination is imperative, as the soil is regarded as the primary cradle for living and environmental balance. Accordingly, the purpose of this study was to assess the contamination level by PTMs in Touggourt city, where soil samples have been collected randomly from 18 sites. These sites included manufacturing companies and institutions belonging to the industrial region of Touggourt city. The concentrations of six PTMs - zinc (Zn), iron (Fe), cobalt (Co), copper (Cu), lead (Pb) and manganese (Mn) were assessed using the atomic absorption spectrophotometer (AAS) instrument as well as the application of the modern pollution indices such as CF (Contamination Factor), PLI (Pollution Load Index) and EF (Enrichment Factor). The highest values of contamination factor (CF) for Zn, Fe, Co, Cu, and Pb were 0.605, 1.605, 0.277, 0.05, 0.438, and 0.01, respectively, and the highest value of pollution load index (PLI) was 0.139, while the results of enrichment factor (EF) for the Zn, Mn, Co, Cu and Pb metals were 2.608, 0.060, 0.740, 0.122, and 2.358, respectively. According to these pollution indices, the results of this study have indicated that human effects or industrial wastes and traffic, in particular, were the sources of heavy metal contaminating the studied region.

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 Assessment of heavy metals with ecological risk of soils in the industrial vicinity of Tangail district, Bangladesh

2018 ◽  
Vol 6 (1) ◽  
pp. 108 ◽  
Author(s):  
Ram Proshad ◽  
Md. Saiful Islam ◽  
Tapos Kormoker
Keyword(s):  
Heavy Metals ◽  
Enrichment Factor ◽  
Ecological Risk ◽  
Contamination Factor ◽  
Principal Component ◽  
Potential Ecological Risk ◽  
Pollution Load Index ◽  
Pollution Load ◽  
Cd Contamination ◽  
The Mean

This study was conducted to assess the ecological risk of heavy metals in soils collected from the industrial vicinity of Tangail district in Bangladesh. In this study, the levels of six heavy metals namely chromium (Cr), nickel (Ni), copper (Cu), arsenic (As), cadmium (Cd), and lead (Pb) in 15 sampling sites around the industrial vicinity of Tangail district in Bangladesh were assessed. The mean concentration of Cr, Ni, Cu, As, Cd and Pb in studied soils were 11.56, 23.92, 37.27, 6.11, 2.01, and 17.46 mg/kg, respectively. Certain indices, including the enrichment factor (EF), contamination factor (Cif), geoaccumulation index (Igeo), pollution load index (PLI), toxic unit analysis, and principal component analysis (PCA) were used to assess the ecological risk. The enrichment factor of all the studied metals for all sampling sites were in the descending order of Cd > Cu > As > Pb >Ni > Cr. The contamination factor values revealed that the studied soils were highly impacted by Cd. The pollution load index (PLI) values of Cd were higher than 1, indicating the progressive deterioration of soil due to Cd contamination. In the context of potential ecological risk (PER), soils from all sampling sites showed moderate to very high potential ecological risk.

scholarly journals The Potential of Heavy Metals Contamination in the Surface Sediments of River Nile, Egypt

2018 ◽  
Vol 3 (2) ◽  
pp. 143-159 ◽  
Author(s):  
Mohamed Nageeb Rashed ◽  
Mohamed ELSadeek Fouad Toufeek ◽  
Mahmoud Abedeldaium Eltaher ◽  
Ayman Outhman Elbadry
Keyword(s):  
Heavy Metals ◽  
Electrical Conductivity ◽  
Organic Matter ◽  
Anthropogenic Activities ◽  
Correlation Coefficients ◽  
Contamination Factor ◽  
Pollution Load Index ◽  
Pollution Indices ◽  
River Nile ◽  
Pollution Load

Electrical conductivity, pH, organic matter, carbonates and five heavy metals (Fe, Mn, Zn, Cu and Pb) were measured seasonally in the sediments of River Nile (Egypt) during 2015. Ten sectors include 30 sites were selected along River Nile from Aswan to Armant to assess the levels of the studied parameters. Heavy metals in sediments were in the order of Pb < Cu < Zn < Mn < Fe, which indicated that Pb was found to be the least concentration in sediments, whereas Fe was the most accumulated element. Pearson’s correlation coefficients among the measured parameters were tested. Zn, Cu and Pb were positively correlated with electrical conductivity and organic matter accumulation and also they were positively correlated with each other. Sediments pollution load was studied through pollution indices [geo-accumulation index, pollution load index, modified degree of contamination, contamination factor and enrichment factor]. The pollution indices confirmed that the River Nile sediments in the studied area were not contaminated with these heavy metals except for some samples collected from certain sites as a result of the anthropogenic activities at these sites.

scholarly journals Geochemical characterization and spatial distribution of heavy metals from urban dust in Chetumal, Mexico

2019 ◽  
Vol 20 (3) ◽  
pp. 1-9
Author(s):  
José Gonzalo Zapata Carbonell ◽  
Francisco Bautista Zúñiga ◽  
Jaime Rendón von Osten ◽  
Luz del Carmen Lagunes Espinoza ◽  
David de Jesús Palma López ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Spatial Distribution ◽  
Contamination Factor ◽  
Atomic Absorption Spectrophotometry ◽  
Pollution Load Index ◽  
Decision Makers ◽  
Urban Dust ◽  
Pollution Load ◽  
Guideline Values ◽  
The City

The first diagnose of heavy metal (Cd, Cr, Cu, Fe, Mn, Ni and Pb) concentrations present in Chetumal, Mexico and its spatial distribution was carried out by analyzing 86 samples of urban dust through atomic absorption spectrophotometry. The assessment of the extent of pollution was undertaken by the use of the Mexican Residential Soil Guideline Values, the calculation of the contamination factor and the pollution load index. The results showed concentrations of heavy metals below the Mexican guidelines in the city, except for chromium and lead in a few samples. However, using the contamination factor the concentrations for chromium, lead and copper are exceeded in some samples. The map of pollution load index shows the areas requiring immediate attention from the decision makers.

scholarly journals Assessment of Heavy Metal Pollution of Water, Sediments and Algae in River Benue at Jimeta-Yola, Adamawa State, Nigeria

2019 ◽  
Vol 1 ◽  
pp. 186-195
Author(s):  
A A Tyovenda ◽  
S I Ikpughul ◽  
T Sombo
Keyword(s):  
Heavy Metal ◽  
Enrichment Factor ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Contamination Factor ◽  
Pollution Load Index ◽  
Pollution Load ◽  
Accumulation Index ◽  
Geo Accumulation Index ◽  
Geo Accumulation

Heavy metal pollution of water, sediments and Algae in the upper region of River Benue at Jimeta-Yola, Adamawa state, Nigeria was assessed. The concentrations of the heavy metals (Pb, Hg, Ni, Cu, Cr, Zn, Mn, Fe) in the samples were analyzed using Atomic Adsorption Spectrometer. Pollution parameters such as enrichment factor, contamination factor, pollution load index and geo-accumulation index were evaluated. The result of heavy metal analysis showed that, the concentration (ppm) of the metals in water samples ranged as follows: Pb(0.25-0.50), Hg(0.00-2.00), Ni(0.10-0.31), Cu(0.03-0.13), Cr(0.00-1.33), Zn(0.01-0.04), Mn(0.03-0.06) and Fe(105.15-118.75) respectively. This result when compared with the EPA maximum permissible limits for drinking water showed that, all the metals except Cu and Zn had values above the permissible limits. The evaluation of enrichment factor revealed that, Hg showed extremely high enrichment while Pb showed significant enrichment for Algae, water and sediment samples. The contamination factor showed low contamination for all metals except Hg which showed considerable contamination for sediments, water and Algae samples. The pollution load index for sediments, water and Algae indicated no pollution. The geo-accumulation index of the metals in sediments, water and Algae indicates no or minimal pollution. The samples were enriched with Hg and Pb. These metals are capable of causing various types of cancer, brain and kidney damage among other ailments.

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 Contamination in Lower Klang River

2021 ◽  
Vol 920 (1) ◽  
pp. 012023
Author(s):  
M A Sefie ◽  
I N Mohamad ◽  
F Baharudin ◽  
J Kassim
Keyword(s):  
Heavy Metals ◽  
Ecological Risk ◽  
River Estuary ◽  
Contamination Factor ◽  
Heavy Metal Concentration ◽  
Potential Ecological Risk ◽  
Pollution Load Index ◽  
Pollution Indices ◽  
Pollution Load ◽  
Risk Levels

Abstract Estuarine and coastal environments are known to be major sinks for heavy metals. This ecosystem and its sustainability should be secured using the ecological as indicators. This study is conducted to quantify the heavy metal concentration and to assess the potential ecological risk levels of heavy metals in the sediments from Klang River Estuary. Three typical heavy metals such as cadmium (Cd), lead (Pb) and zinc (Zn) were identified. The surface sediment samples were collected from three sampling stations. The concentration of heavy metals in the sediments were arrange in a decreasing sequence of Pb > Zn > Cd. A range of pollution indicators based on single pollution indices such as Contamination Factor, Contamination Degree, Pollution Load Index and Geoaccumulation Index were considered for ecological risk analysis. In conclusion, the ecological risk levels of heavy metals in the sediments from Lower Klang River were low and unpolluted. However, an overall assessment regarding to the heavy metals’ concentrations, spatial distribution and their potential sources need to be monitored for a better understanding of the water-sediment interaction.

scholarly journals Contamination and Pollution Risk Assessment of Heavy Metals in Rice Samples (Oryza sativa) from Nasarawa West, Nigeria

2019 ◽  
pp. 1-8
Author(s):  
Abdullahi Abubakar Mundi ◽  
Umar Ibrahim ◽  
Idris Mohammed Mustapha
Keyword(s):  
Heavy Metals ◽  
Oryza Sativa ◽  
Contamination Factor ◽  
Pollution Load Index ◽  
World Health ◽  
Contamination Level ◽  
Rice Grain ◽  
Pollution Load ◽  
Constant Weight ◽  
Rice Samples

Aim: This study was undertaken to assess the heavy metals contamination level in rice grains (Oryza sativa) from Nasarawa West, Nigeria. Study Design: To estimate the contamination factor, degree of Contamination and Pollution load index of rice samples from Nasarawa west using the world health organization/food and agricultural organization acceptable limits of some toxic Heavy Metals in Food as reference heavy metals concentration. Place and Duration of Study: The research was carried out in the Department of physics, Nasarawa State University, Keffi, from September 2017 to April 2018. Methodology: Fifteen (15) samples each were taken from various locations from the rice fields in Keffi, Kokona, Karu, Nasarawa, and Toto respectively. Rice grain samples were dried in an open air at an ambient temperature to constant weight. Husks were removed. Then, the grain rice samples were pulverized and were passed through a 2.00 mm sieve and stored in closed polyethylene bags for irradiation using ECLIPSE Ш Energy Dispersive X – Ray Fluorescence (EDXRF) XR–100 CR spectrometer supplied by AMTEK INC. MA; USA. Results: The values of contamination factor of rice samples from the study area were in the order of Zn < Cu < Ni < Cr < Pb and are all less than 1, indicating a ‘low risk’ of contamination with the value of Cd >> 6 presenting a very high contamination risk of Cadmium. The Pollution Load Index value observed in Nasarawa West were in the order of Nasarawa (0.0683) < Keffi (0.0773) < Toto (0.0972) < Kokona (0.0988) < Karu (0.1389) and are all less than unity (1), indicating that the rice samples were not polluted by Cd, Cu, Cr, Ni, Pb and Zn. Conclusion: Findings from this study will help in making policies and preferring solution to public health related issues and further studies may be important.

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.

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