Pollution Level and Ecological Risk Rssessment of Heavy Metals in Riverside Sediments of the Grand Canal (Beijing, Tianjin and Hebei section)

2020 ◽  
Vol 105 (3) ◽  
pp. 440-445
Author(s):  
Li Shen ◽  
Yan Gan ◽  
Chengyu Li ◽  
Chao Wang
Keyword(s):  
Heavy Metals ◽  
Ecological Risk ◽  
Pollution Level ◽  
Grand Canal ◽  
The Grand Canal

scholarly journals Assessment of the Ecological Risk from Heavy Metals in the Surface Sediment of River Surma, Bangladesh: Coupled Approach of Monte Carlo Simulation and Multi-Component Statistical Analysis

Water ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 180
Author(s):  
Arup Acharjee ◽  
Zia Ahmed ◽  
Pankaj Kumar ◽  
Rafiul Alam ◽  
M. Safiur Rahman ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Ecological Risk ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
River Sediment ◽  
Risk Index ◽  
Pollution Level

River sediment can be used to measure the pollution level in natural water, as it serves as one of the vital environmental indicators. This study aims to assess heavy metal pollution namely Copper (Cu), Iron (Fe), Manganese (Mn), Zinc (Zn), Nickel (Ni), Lead (Pb), and Cadmium (Cd) in Surma River. Further, it compares potential ecological risk index values using Hakanson Risk Index (RI) and Monte Carlo Simulation (MCS) approach to evaluate the environmental risks caused by these heavy metals. in the study area. With obtained results, enrichment of individual heavy metals in the study area was found in the order of Ni > Pb > Cd > Mn > Cu > Zn. Also, variance in MCS index contributed by studied metals was in the order of Cd > Pb > Ni > Zn > Cu. None of the heavy metals, except Ni, showed moderate contamination of the sediment. Risk index values from RI and MCS provide valuable insights in the contamination profile of the river, indicating the studied river is currently under low ecological risk for the studied heavy metals. This study can be utilized to assess the susceptibility of the river sediment to heavy metal pollution near an urban core, and to have a better understanding of the contamination profile of a river.

scholarly journals Computing the Parametric Geo-Accumulation and Ecological Risk Indices of Some Heavy Metals Along on, Charsadda-Peshawar Road, Pakistan

2019 ◽  
Vol 10 (3) ◽  
pp. 109-117
Author(s):  
Fiza Sarwar ◽  
Zufishan Anjum ◽  
Noor Fatima ◽  
Muhammad Jahangir Khan ◽  
S. Umair Ullah Jamil ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Ecological Risk ◽  
Cynodon Dactylon ◽  
Heavy Traffic ◽  
Risk Index ◽  
Pollution Index ◽  
Pollution Assessment ◽  
Pollution Level ◽  
Cyperus Esculentus ◽  
Sample Collection

Charsadda to Peshawar road is characterized with diverse surrounding environment of residential settlements,industrial zones, commercial and agricultural sectors along with heavy traffic route which is contributing to heavy metalpollution. This study is focused on heavy metals: Cadmium (Cd), Chromium (Cr) and Lead (Pb) contribution to theatmospheric pollution level. The heavy metals pollution assessment is carried out by sample collection (soil dust samplesand two vegetation species Cyperus esculentus and Cynodon dactylon) from ten sites along the road which were analyzedby using atomic absorption spectrometry (AAS). Average values of pollution index (PI) as well as average value ofpollution load index (PLI) for Cr, Cd and Pb in case of Cyperus esculentus, Cynodon dactylon and dust were calculated.Geo-accumulation index of roadside dust for Cr, Cd and Pb were estimated along with ecological risk due to roadsidedust using potential ecological risk index (RI). The analyses of this study suggest that the indices for the Cd metal foundto be of more concern than Cr or Pb which correspond to middle or low level of pollution. Statistical analysis revealedthat the three metals had a weak to moderate relationship with one another indicating multiple and somewhat similarsources of pollution.

scholarly journals Assessment of Heavy Metal Pollution and Potential Ecological Risk in Sewage Sludge from Municipal Wastewater Treatment Plant Located in the Most Industrialized Region in Poland—Case Study

2019 ◽  
Vol 16 (13) ◽  
pp. 2430 ◽  
Author(s):  
Malwina Tytła
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Wastewater Treatment ◽  
Risk Factor ◽  
Sewage Sludge ◽  
Ecological Risk ◽  
Treatment Plant ◽  
Potential Ecological Risk ◽  
Pollution Level ◽  
Chemical Forms

This study aimed to assess the pollution and potential ecological risk of seven heavy metals (Cd, Cr, Cu, Hg, Ni, Pb, and Zn) in the sewage sludge collected from a wastewater treatment plant (WWTP), located in the most industrialized region of Poland (Silesian Voivodeship). The concentrations of heavy metals were determined using inductively coupled plasma optical spectrometry (ICP-OES) and cold vapor atomic absorption spectrometry (CVAAS). The chemical forms (chemical speciation) of heavy metals were determined using the three-step chemical sequential extraction procedure, developed by the Community Bureau of Reference (BCR). To assess the pollution level and potential ecological risk, the following indices were used: Geoaccumulation Index (Igeo), Potential Ecological Risk Factor (ER), Individual Contamination Factor (ICF), Risk Assessment Code (RAC), and Ecological Risk Factor (ERF)—the author’s index. Sludge samples were collected at successive stages of processing. The results revealed that the activated sludge process and sludge thickening have a significant impact on heavy metal distribution, while anaerobic digestion and dehydration decrease their mobility. The most dominant metals in the sludge samples were Zn and Cu. However, the content of heavy metals in sewage sludge did not exceed the permissible standards for agricultural purposes. The concentrations of heavy metals bound to the immobile fractions exhibited higher concentrations, compared to those bound to mobile fractions (except Zn). The values of the total indices indicated that sludge samples were moderately to highly contaminated with Zn, Hg, Cd, Cu, and Pb, of which only Hg, Cd, and Cu posed a potential ecological risk, while according to the speciation indices, sludge samples were moderately to very highly polluted with Zn, Cu, Cd, Cr, and Ni, of which Zn, Ni, and Cd were environmentally hazardous. The obtained results proved that assessment of the pollution level and potential ecological risk of heavy metals in sewage sludge requires knowledge on both their total concentrations and their chemical forms. Such an approach will help prevent secondary pollution of soils with heavy metals, which may influence the reduction of health risks associated with the consumption of plants characterized by a high metal content.

scholarly journals Investigation of heavy metals concentration in soil around a Pb-Zn mine and ecological risk assessment

2019 ◽  
Vol 6 (3) ◽  
pp. 151-156 ◽  
Author(s):  
Amir Hossein Baghaie ◽  
Forough Aghili
Keyword(s):  
Heavy Metals ◽  
Soil Pollution ◽  
Ecological Risk ◽  
Agricultural Land ◽  
Agricultural Soils ◽  
Risk Index ◽  
Potential Ecological Risk ◽  
Pollution Level ◽  
Ecological Risk Index ◽  
Accumulation Index

Background: Soil pollution with heavy metals seriously threatens soil quality, food safety, and humanhealth. This study was conducted to determine the soil pollution level and ecological risk assessmentof different heavy metals in agricultural soils around Nakhlak Pb-Zn mine, located in Anarak district,Nain county of Isfahan province.Methods: A total of 50 soil samples were collected from agricultural land around Nakhlak mine andanalyzed to determine the concentrations of Pb, Cd, Zn, Ni, Cu, and Mn. The geo-accumulation index(Igeo), enrichment factor (EF), and potential ecological-risk index (Er) were used to assess the level ofsoil pollution with heavy metals.Results: The mean concentrations of Pb, Cd, Zn, Ni, Cu, and Mn were 355, 2.72, 347, 26, 36, and505 mg/kg, respectively, which were higher than the background values of world soils. Based on theIgeo index, the study area was moderately to heavily contaminated with Pb and Zn, uncontaminated tomoderate contaminated with Cd and Cu, and uncontaminated with Mn and Ni. According to the EFvalues, the study soil was moderately contaminated with Mn, Ni, and Cu, significantly contaminatedwith Cd and Zn, and highly enriched with Pb. The RI values showed a moderate level of heavy metalscontamination in the study soil.Conclusion: According to the results, the ecological risk of heavy metals for ecosystem in agriculturallands around Nakhlak Pb-Zn mine is moderate. However, the contamination status should be consideredperiodically.

Assessment of Heavy Metal Levels in Sediment of the Xiangjiang River Section Flowing through Changsha

2013 ◽  
Vol 368-370 ◽  
pp. 482-485 ◽  
Author(s):  
Fang Tong Wu ◽  
Hong Yu Zhu ◽  
Juan Guo ◽  
Yan Ni Lei
Keyword(s):  
Heavy Metals ◽  
Ecological Risk ◽  
River Sediments ◽  
Potential Ecological Risk ◽  
Pollution Level ◽  
Xiangjiang River ◽  
Metal Levels ◽  
Accumulation Index ◽  
Ecological Risk Evaluation ◽  
Heavy Metals Pollution

In order to assess polluting condition of heavy metals in sediment of the Xiangjiang River Changsha section, the spatial distribution of four heavy metals were determined in river sediments at six sampling stations. Geo-accumulation Index of heavy metals in superficial sediment of the Xiangjiang River Changsha section was in the decreasing order of Cd>Zn>Pb>Cu. On the whole, the pollution level was moderate-high, and the order of four heavy metals pollution lever was noted in the sequence of Liuyang River entrance of Xiangjiang> Juzizhou Bridge >Houzishi Bridge> the Second Xiangjiang River Bridge > Xiangjiang Super Bridge > Xiangjiang Sanchaji Bridge. The Potential Ecological Risk Evaluation showed that heavy metals ecological risk in sediment of the Xiangjiang River Changsha section was very high, Cd was the primary contribution element, followed by Pb.

Assessment on Pollution Level and Ecological Risk of Heavy Metals in Pond Sediment of Suburban District

2013 ◽  
Vol 712-715 ◽  
pp. 498-501
Author(s):  
Hai Min Su
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Ecological Risk ◽  
Potential Ecological Risk ◽  
Anhui Province ◽  
Pollution Level ◽  
Light Pollution ◽  
Geochemical Background ◽  
Suburban District ◽  
Suzhou City

The content of heavy metals Cr, Cu, Zn, As in 15 ponds sediment of suburban district were determined in Suzhou City. The results showed that the contents, except for Cr, all above geochemical background values of Anhui Province. Meanwhile, the index of geoaccumulation and the Lars Hakansons method were used to assess pollution level and potential ecological risk of the heavy metals. The assessment results revealed that Cu was light pollution, and the others were non-pollution. And heavy metal potential ecological indexes from 36.62 to 75.85 were less than 150, which illustrated the potential ecological risk small.

scholarly journals Distribution and provenance of heavy metals in sediments of the Vrbas River, Bosnia and Herzegovina

2021 ◽  
pp. 70-70
Author(s):  
Sanja Przulj ◽  
Ana Radojicic ◽  
Milica Kasanin-Grubin ◽  
Dusica Pesevic ◽  
Sanja Stojadinovic ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Metal Concentration ◽  
Ecological Risk ◽  
Anthropogenic Impact ◽  
Risk Index ◽  
Contamination Factor ◽  
Emission Spectrometry ◽  
Anthropogenic Source ◽  
Pollution Level ◽  
Pollution Indices

Heavy metals are naturally occurring elements, but they are regarded as significant environmental pollutants due to high density and high toxicity even at low concentrations. The aim of this paper is evaluation of the pollution level of heavy metals in the river and riverbank sediments as well as the estimation of their origin and spatial differences along the course of the Vrbas River through Banja Luka. The concentrations of metals have been assessed using the Inductively coupled plasma - optical emission spectrometry and Advanced mercury analyzer for mercury determination. Anthropogenic impact on heavy metal concentration in sediments was estimated by calculating pollution indices: Geoaccumulation index (Igeo), Contamination factor (Cf), Pollution Load Index (PLI), and Potential Ecological Risk Index (Er). Obtained results indicate that there is no statistically significant spatial difference in metal concentration, indicating that heavy metals in sediments have a constant source. The anthropogenic impact expressed by values of pollution indices showed that sites are generally uncontaminated by Co, Cr, and V and moderately contaminated by Zn, Cu, and Ni. On the contrary, lead, mercury and cadmium pose the highest ecological risk. The anthropogenic source of Pb, Hg and Cd is industry, municipal waste and the combustion of fossil fuels. Obtained results demonstrate the high ecological risk and need for environmental monitoring, supporting an efficient strategy to reduce local pollution and contamination of the investigated system.

scholarly journals Assessment of Heavy Metals Pollution in Sediments from Reservoirs of the Olt River as Tool for Environmental Risk Management

2020 ◽  
Vol 70 (12) ◽  
pp. 4153-4162
Keyword(s):  
Heavy Metals ◽  
Risk Management ◽  
Ecological Risk ◽  
Environmental Risk ◽  
Inductively Coupled Plasma ◽  
Contamination Factor ◽  
Potential Ecological Risk ◽  
Pollution Level ◽  
Risk Assessment Code ◽  
Environmental Risk Management

Heavy metals are among the most persistent pollutants in the ecosystem due to their resistance at decomposition in natural condition. They have low solubility in water and tend to be adsorbed and accumulated on bottom sediments. Anthropogenic actions conduct to the discharge of heavy metals from various sources (industrial, urban, and/or agriculture) to rivers water that are ultimately immobilized in marine sediments under current action. In this work, an investigation of pollution and ecological risk in the Olt River waters is performed based on assessing the accumulation of heavy metals in sediments. Therefore, sediment samples were collected from 22 locations on the Olt River, in its middle and lower basin, and investigated by inductively coupled plasma mass spectrometry which allows us to measure very low elements concentration levels. Two main aspects were foreseen in this study: (i) determining the content and spatial distribution of heavy metals in the Olt River surface sediments, and (ii) assessing the pollution level based on various parameters, namely the contamination factor, the geo-accumulation, pollution load and Nemerow pollution indexes, the potential ecological risk, and risk assessment code. This methodology proves to be an appropriate tool to apply in decision-making on environmental risk management. Keywords: heavy metals, ecological risk, pollution, ecosystem, sediments

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