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 Comparing Levels of Some Heavy Metals in Rivers and Sediments from Two South-Western States of Nigeria

2021 ◽  
pp. 1-7
Author(s):  
Ogunti mehin ◽  
◽  
Apata o ◽  
Keyword(s):  
Heavy Metals ◽  
Ecological Risk ◽  
Contamination Factor ◽  
Atomic Absorption Spectrophotometry ◽  
Potential Ecological Risk ◽  
Pollution Load Index ◽  
Pollution Load ◽  
Metal Analysis ◽  
Water And Sediment ◽  
Standard Procedures

Ten water and ten sediment samples from both Igbokoda and Apapa in South west, Nigeria were collected between March and August, 2018 for heavy metal analysis. The study aimed at using Potential Ecological Risk (PER) index to characterize rivers sediments and waters for possible environmental impact. The sampling span industrial, domestic and recreational areas. The water and sediment grab samples were treated using standard procedures. The filtrate from sediment was made up to 50 cm3 mark with distilled water and used for seven heavy metals determination using atomic absorption spectrophotometry (AAS). Contamination factor (CF) and Pollution load index (PLI) calculated for each metal in the sediments indicate moderate contaminations. However, Cd in exception showed the highest potential ecological risk factor of 42.3 in Igbokoda. PER value of the Igbokoda sediment is 45.37 while that of Apapa sediment is 6.79. The potential risk pose by Cd alone in the sediment suggests that the Igbokoda water is unsafe for recreational and other beach activities. The recommendation from the study will suggest a proper treatment of wastewater and sewages before fluxing into both the Igbokoda and Apapa water bodies

scholarly journals Tortum Gölü Yüzey Sedimentlerindeki Metal Birikiminin Ekolojik İndeksler Yolu ile Kapsamlı Risk Değerlendirmesi

2016 ◽  
Vol 4 (12) ◽  
pp. 1185 ◽  
Author(s):  
Serkan Kürker
Keyword(s):  
Heavy Metals ◽  
Enrichment Factor ◽  
Ecological Risk ◽  
Fossil Fuels ◽  
Risk Index ◽  
Contamination Factor ◽  
Potential Ecological Risk ◽  
Pollution Load Index ◽  
Organic Carbon Content ◽  
Lake Catchment

In this study, ecological risks arising from the accumulation of some heavy metals in surface sediments of Lake Tortum are discussed based on the use of ecological indices, such as enrichment factor (EF), contamination factor (CF), pollution load index (PLI), potential ecological risk index (PER) and the mean probable effect concentration quotient (mPEC-Q). Sediment samples were collected from six different sites using Van Veen grab and heavy metal and organic carbon content of sediments were determined. Results testify to the existence of minimal to moderate contamination in lake sediment. The highest value for the enrichment factor pertains to Cd caused by the use of fossil fuels in settlement areas in the lake catchment. PLI and PER estimations, on the other hand, reveals the presence of low heavy metals-induced ecological risk in lake sediments. Ranging between 15% and 29%, mPEC-Q values are indicative of the fact that Lake Tortum is a low-moderate priority site in terms of toxicity level caused by heavy metals.

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 Source Apportionment of Heavy Metal Contaminated Soil Around a Urea Fertilizer Factory and Probabilistic Risk Assessment of Human Health

2021 ◽  
Author(s):  
Shirin Akter ◽  
Mohammad Obidur Rahman ◽  
Mehedi Hasan ◽  
Saiful Islam Tushar ◽  
Mottalib Hossain Sarkar ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Enrichment Factors ◽  
Potential Ecological Risk ◽  
Pollution Load Index ◽  
Carcinogenic Risk ◽  
Pollution Load ◽  
Carcinogenic Risk Assessment ◽  
Grade Ii ◽  
The Mean

Abstract The mean concentrations of heavy metals viz: K, Ca, Mg, Ti, Fe, Co, Cu, As, Zn, Rb, Sr, Zr, Pb and Th were measured in soil samples using Energy Dispersive X-ray Fluorescence (EDXRF) technique and sampling sites as a whole were found highly contaminated by Zn, considerably contaminated by Mg and Pb, while moderately contaminated by Fe, Co, Cu, Rb, Sr, As, Rb, Y, Th. The sampling sites are moderate to strongly polluted by heavy metals according to Enrichment factors value, whereas, Pollution Load Index values for 95% of the sample sites were ≥ 1.5, indicating deterioration of soil quality. Potential Ecological risk (RI) value followed the increasing sequence of Pb > As > Co > Zn > Cu. Non-carcinogenic exposure found higher in children compared to adults,however carcinogenic risk assessment revealed that both groups (adult and children) lied within Grade II category (10− 5 to 10− 6) and considered to be at no risk.

scholarly journals Analysis of Heavy Metals in Surface Sediments from Agh Gel Wetland, Iran

2016 ◽  
Vol 10 (3) ◽  
pp. 41-46
Author(s):  
Soheil Sobhanardakani ◽  
◽  
Mehrnaz Ghoochian ◽  
Keyword(s):  
Heavy Metals ◽  
Surface Sediments ◽  
Contamination Factor ◽  
Dry Weight ◽  
Pollution Load Index ◽  
Pollution Load ◽  
Chemical Pollutants ◽  
Accumulation Index ◽  
The Mean ◽  
Geo Accumulation Index

Background: Soil and sediment serve as major reservoir for contaminants as they possess ability to bind various chemicals together. In this study the concentrations of heavy metals Cd, Cr and Cu were analyzed in surface sediments of Agh Gel Wetland in west of Iran. Methods: The sediment samples were taken from 10 stations. The samples were subjected to bulk digestion and chemical partitioning and Cd, Cr and Cu concentrations of the sediments were determined by ICP-OES. Geo-accumulation index (I-geo), Contamination factor (CF) and Pollution load index (PLI) were used to evaluate the magnitude of contaminants in the sediment profile. Results: The mean sediment concentrations (mg kg-1 dry weight) ranged within 0.20-0.29 (Cd), 58-71 (Cr) and 23-36 (Cu). According to the I-geo values, the sediments' qualities are classified as unpolluted to moderately polluted category. According to the CF values, the sediments' qualities are classified as low to moderate contamination. Furthermore, the PLI values indicated that there were no metal pollution exists for all sampling stations. Conclusion: The Agh Gel Wetland is potential to be threatened by chemical pollutants such as agricultural effluent. So to preserve the environment of the Agh Gel Wetland from deterioration, periodically monitoring of the water and sediment qualities is recommended.

scholarly journals Assessment of Heavy Metals in the Sediments of Chalan Beel Wetland Area in Bangladesh

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 410
Author(s):  
Mohammad Abdus Salam ◽  
Mohammad Ashraful Alam ◽  
Sulav Indra Paul ◽  
Fatama Islam ◽  
Dinesh Chandra Shaha ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Anthropogenic Activities ◽  
Risk Index ◽  
Contamination Factor ◽  
Principal Component ◽  
Potential Ecological Risk ◽  
Northwestern Part ◽  
Accumulation Index ◽  
Significant Enrichment ◽  
The Mean

This study aimed to determine the levels and possible sources of heavy metals (HMs) in the sediments of Chalan beel (a large lake-like aquatic ecosystem) area located in the northwestern part of Bangladesh. The mean concentrations (mg kg−1) of two HMs, Cd (6.22) and Pb (51.39) exceeded the world normal averages (WNA), whereas the mean concentrations (mg kg−1) of Ni (60.46), Zn (10.75), Mn (8.64) and Cu (4.71) were below the WNA. The sediments showed significant enrichment with Cd, Pb and Ni in the studied area. The geo-accumulation index values of Cd (3.72) and Pb (0.76) were significantly higher in the sediments. The contamination factor and potential ecological risk index values of Cd and Pb revealed that Chalan beel was extremely and moderately contaminated by these heavy metals, respectively. Analysis of dye complexes used in handlooms around the Chalan beel areas revealed that mean concentrations of Cd and Pb exceeded the WNA. Furthermore, analyses of principal component, cluster and correlation matrix indicated that the presence of the higher levels of Cd and Pb in the sediments might be linked to various anthropogenic activities like discharged dyes into the beel water from the nearby handloom dyeing factories.

scholarly journals Evaluation of ecological risk, source and spatial distribution of some heavy metals in marine sediments in the Middle and Eastern Black Sea region, Turkey

2021 ◽  
Author(s):  
Aylin Apaydın ◽  
Hatice Kabaoğlu ◽  
Gökhan Apaydın ◽  
Murat Şirin ◽  
Erhan Cengiz ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Spatial Distribution ◽  
Black Sea ◽  
Ecological Risk ◽  
Risk Index ◽  
Agricultural Practices ◽  
Contamination Factor ◽  
Pollution Load Index ◽  
Black Sea Region ◽  
The Mean

Abstract In the present study, the concentration levels of heavy metals such as Mn, Fe, Ni, Cu, Zn, Cr and Pb in sediment samples collected from 16 sampling locations in the Middle and Eastern Black Sea regions, Turkey was measured using energy dispersive X–ray fluorescence spectroscopy (EDXRF). Various pollution parameters and methods, such as the enrichment factor (EF), geo–accumulation index (Igeo), contamination factor (CF), pollution load index (PLI), ecological risk index (RI), and geo–spatial distribution patterns were used to assess in detail the pollution status, ecological risks and sources of metals in sediment. The mean concentrations of Mn, Fe, Ni, Cu, Zn, Cr and Pb were found to be 565.38, 46,000, 34.38, 104.06, 109.88, 87.31, and 32.31 mg/kg, respectively. Results showed that the mean concentrations of Cu, Zn and Pb exceeded the crustal shale value, with the exception of Mn, Fe, Ni and Cr. According to the calculated pollution parameters, although minimal or moderate pollution was detected in the area investigated, it was determined that there was a very low ecological risk. Multivariate statistical analysis results showed that Cu, Zn, and Pb levels in the investigated region were slightly influenced by anthropogenic inputs such as mining and agricultural practices. In addition, the geo–spatial distributions of Cu, Zn, Fe and Pb were found to be higher in this region due to the mining activities carried out in the Eastern Black Sea region.

scholarly journals “Assessment of Heavy Metal Pollution in Soil of Chattogram Hill Tracts, Bangladesh and Concomitant Health Risk”

2021 ◽  
Author(s):  
Troyee Barua ◽  
AKM Saiful Islam Bhuian ◽  
Mayeen Uddin Khandaker ◽  
Nipa Deb ◽  
Shahadat Hossain ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Risk Index ◽  
Hazard Index ◽  
Significant Risk ◽  
Contamination Factor ◽  
Principal Component ◽  
Hierarchical Cluster ◽  
Potential Ecological Risk ◽  
Pollution Load Index ◽  
Toxic Heavy Metals

Abstract The increased human population and associated activities may create a risk in the ecological balance of Chattogram Hill Tracts (CHT), Bangladesh via contamination of soil with toxic heavy metals. Thus, the present study was conducted to assess the concentration of heavy metals (Lead, Cadmium, Copper, Zinc, Iron, Manganese, Chromium and Nickel) in forest soils of the CHT area by using an atomic absorption spectrometer. The degree of contamination of soil was evaluated by five indices: geo-accumulation index (I geo ), enrichment factor (EF), contamination factor (CF), pollution load index (PLI) and potential ecological risk index (PERI). According to these criteria, these soils can be classified as moderately contaminated with some metals. Furthermore, the identification of pollution sources based on principal component analysis and hierarchical cluster analysis have revealed that all analyzed metals are anthropogenic except Fe. Calculated hazard index>1 indicates the possibility of noncarcinogenic effect due to higher value of Fe. Carcinogenic risks through the ingestion, inhalation and dermal pathway for carcinogenic elements (Pb, Cd, Cr, and Ni) shows a non-significant risk (CR<10 -6 ) for both children and adults living in the studied area. Measured data may help the policymakers to reduce the potential effects of soil contamination on eco-environment and human health.

scholarly journals Heavy Metals Contamination of Soil in the Vicinity of Hawassa Industrial Zone, Ethiopia

2020 ◽  
Vol 24 (8) ◽  
pp. 1447-1454
Author(s):  
B. Samuel ◽  
S. Solomon ◽  
F. Daniel ◽  
G.M. Zinabu ◽  
G. Riise
Keyword(s):  
Heavy Metals ◽  
Ecological Risk ◽  
Human Impacts ◽  
Risk Index ◽  
Contamination Factor ◽  
Pollution Load Index ◽  
Water Sources ◽  
Industrial Zone ◽  
Pollution Load ◽  
Degree Of Contamination

Industrial effluents, containing heavy metals, drain directly into downstream water sources within the Hawassa Industrial Zone. These, water  sources are used for irrigation, drinking water and other domestic purposes. The load of pollutants, environmental risks and potential human impacts are generally, unknown for soil in Ethiopia. Therefore, the aim of this study was to determine the extent of heavy metal pollution of soil within the Hawassa Industrial Zone and to evaluate environmental impacts using contamination factor (CF), degree of contamination (Cd), modified degree of contamination (mCd), ecological risk factor (Er), ecological risk index (ERI) and pollution load index (PLI) analyses. Seven heavy metals: Cr, Ni, Cu, Zn, As, Cd and Pb were determined in soil samples from three different sites by inductively coupled plasma mass spectrometry (ICP-MS). Average concentration of metals decreased in the order of Zn>Cu>Cr>Ni>Pb>As>Cd consistent with the normal order of abundance in non-polluted soils. One way ANOVA revealed significant differences (P<0.05) in the concentrations of Cu, As, Cd and Pb among the sampling sites. Pearson’s correlation, principal component and cluster analyses revealed that heavy metals are originating from different sources. Within the industrial area,  the CF increased in the order of Pb<Cd<Zn<As<Cu<Cr<Ni. The result of Cd revealed that there was considerable to very high contamination of the soil. The mCd index showed moderate contamination of the soils. The Er increased in the order of Zn<Cr<Pb<Cu<Ni<As<Cd and the result of the ERI value revealed considerable ecological risk for the soils. Overall, the study showed that the soils within the Hawassa Industrial Zone are highly contaminated with heavy metals. Therefore, regular monitoring of heavy metals concentration in soil and policy interventions with respect to waste disposal are recommended. Keywords: Heavy metals, potential ecological risks, pollution load index, soil

scholarly journals Ecological risk assessment of trace metals in the bottom sediments of the young water reservoir – Bardowskiego Lagoon (Warsaw) case study

2018 ◽  
Vol 44 ◽  
pp. 00182 ◽  
Author(s):  
Malwina Tytła ◽  
Anna Dmochowska ◽  
Dariusz Dmochowski ◽  
Kinga Jaworska
Keyword(s):  
Trace Metals ◽  
Ecological Risk ◽  
Bottom Sediments ◽  
Risk Index ◽  
Water Reservoir ◽  
Contamination Factor ◽  
Potential Ecological Risk ◽  
Pollution Load Index ◽  
Pollution Load

The aim of the study was to assess the ecological risk of five trace metals, i.e. Cd, Cu, Ni, Pb, Zn, accumulated in bottom sediments of young water reservoir – Bardowskiego Lagoon located in Warsaw, Poland. In this case, several indices were used, i.e. Geoaccumulation index (Igeo), Contamination factor (CF), Potential ecological risk factor (ER), Degree of contamination (DC), Pollution load index (PLI) and Risk index (RI). The average trace metals concentrations in sediments, were as follow: Zn > Pb > Cu > Cd > Ni. The obtained results revealed that bottom sediments were very highly to extremely high contaminated by Cd and the ecological risk related with this pollutant was the largest. They also indicated that water from the study area was characterized by a low ecological quality, especially due to the content of Cd and Pb. The research proves that problem of cadmium contamination in bottom sediments of young water reservoirs is real and poses a serious ecological risk.

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