scholarly journals Assessment of Groundwater Quality and Health Risk of Heavy Metals: A study from the Tarkwa Mining Area, Ghana

2020 ◽  
Vol 20 (2) ◽  
pp. 1-10
Author(s):  
J. Seidu ◽  
A. Ewusi
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Mining Area ◽  
Carcinogenic Risk ◽  
Assessment Model ◽  
Potential Health ◽  
Water Types ◽  
Study Results

This study seeks to evaluate the hydrogeochemical characteristics of water in the Tarkwa mining area using the Piper and Chadha plots and to carry out a health risk assessment using the US Environmental Protection Agency (USEPA) health risk assessment model. A total of 39 groundwater sample points were used for this study. Results from the Piper and Chadha diagrams show that the dominant water types in the study area are Ca-HCO3 and Mixed Ca-Mg-Cl water types which indicates that groundwater in the area can be classified as fresh water. The hazard quotient (HQ) value for heavy metals estimated, suggested an acceptable level of noncarcinogenic inimical health risk. In relation to the HQ value, the Hazard Index (HQ) calculated was less than 1 suggesting that inhabitants will not be exposed to a potential health risk for the injection of heavy metals. Carcinogenic risk estimated for As (1.80×10-4) was higher than the acceptable risk. The carcinogenic risk estimated therefore indicated that, drinking of groundwater over a long period will increase the probability of cancer. It can be concluded that currently the groundwater in the Tarkwa area is safe for domestic purposes.   Keywords: Hydrochemical Characteristics, Human Risk Assessment, Tarkwa Mining Area

scholarly journals Distribution, source, water quality and health risk assessment of dissolved heavy metals in major rivers in Wuhan, China

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11853
Author(s):  
Xingyong Zhang ◽  
Qixin Wu ◽  
Shilin Gao ◽  
Zhuhong Wang ◽  
Shouyang He
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Heavy Metal ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Pollution Index ◽  
Carcinogenic Risk ◽  
Source Water Quality

Heavy metals are released into the water system through various natural processes and anthropogenic activities, thus indirectly or directly endangering human health. The distribution, source, water quality and health risk assessment of dissolved heavy metals (V, Mn, Fe, Co, Ni, Zn, As, Mo, Sb) in major rivers in Wuhan were analyzed by correlation analysis (CA), principal component analysis (PCA), heavy metal pollution index (HPI), hazard index (HI) and carcinogenic risk (CR). The results showed that the spatial variability of heavy metal contents was pronounced. PCA and CA results indicated that natural sources controlled Mn, Fe, Co, Ni and Mo, and industrial emissions were the dominant factor for V, Zn and Sb, while As was mainly from the mixed input of urban and agricultural activities. According to the heavy metal pollution index (HPI, ranging from 23.74 to 184.0) analysis, it should be noted that As and Sb contribute most of the HPI values. The health risk assessment using HI and CR showed that V and Sb might have a potential non-carcinogenic risk and As might have a potential carcinogenic risk to adults and children in the study area (CR value exceeded target risk 10−4). At the same time, it was worth noting that As might have a potential non-carcinogenic risk for children around QLR (HI value exceeded the threshold value 1). The secular variation of As and Sb should be monitor in high-risk areas. The results of this study can provide important data for improving water resources management efficiency and heavy metal pollution prevention in Wuhan.

Heavy metals potential health risk assessment through consumption of wastewater irrigated wild plants: A case study

2015 ◽  
Vol 22 (1) ◽  
pp. 141-152 ◽  
Author(s):  
Muhammad Usman Khan ◽  
Said Muhammad ◽  
Riffat Naseem Malik ◽  
Sabaz Ali Khan ◽  
Mohammad Tariq
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Wild Plants ◽  
Potential Health ◽  
Potential Health Risk

Concentration Level of Heavy Metals in Wheat Grains and the Health Risk Assessment to Local Inhabitants from Baiyin, Gansu, China

2012 ◽  
Vol 518-523 ◽  
pp. 951-956 ◽  
Author(s):  
Xin Peng Dai ◽  
Lei Feng ◽  
Xin Wang Ma ◽  
Ying Mei Zhang
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Adverse Effect ◽  
Health Risk ◽  
Population Health ◽  
Health Risk Assessment ◽  
Potential Health ◽  
Potential Health Risk ◽  
Wheat Grains ◽  
Standard Value

In the present study, concentrations of heavy metals (Cu, Zn, Pb, Cd) in soil and wheat grains of the agricultural areas around Baiyin, a non-ferrous metals mining and smelting base, were detected. Meanwhile, the potential health risk of the heavy metals to adult males, adult females and children was estimated using non-carcinogenic health risk assessment model: Hazard Quotient (HQ) and Hazard Index (HI). The results showed that only the level of Cd in all soil samples exceeded the permissible limit of the environmental quality standard for soil, and its average level surpassed the standard value by 4 times. In wheat grains, the levels of Pb and Cd were 50 times and 8 times of the limited values of hygienic standard for grain respectively, while Cu and Zn concentrations did not surpass the standard value. The potential health risk due to single heavy metal for all the three investigated populations followed the sequence of HQPb＞HQCd＞HQCu＞HQZn＞1 (assumed the local inhabitants wholly food on wheats), suggesting that each of the four heavy metals were making negative effect on population health, of which the situation of Pb and Cd should be paid more attention due to their significant adverse effect. The total potential health risk due to the four heavy metals followed the sequence of HIchildren＞HImales＞HIfemales＞1 (assumed that the health risk due to the four heavy metals is additive), suggesting that the heavy metals were producing adverse effect on population health, and were especially hazardous for children. According to the research results, the government is suggested to strictly control the quality of irrigation water and remove the heavy metals from agricultural soil in order to ensure the safety of foodcrop production and local inhabitants.

scholarly journals Heavy metals health risk assessment for population via consumption of vegetables grown in old mining area; a case study: Banat County, Romania

2011 ◽  
Vol 5 (1) ◽  
Author(s):  
Monica Harmanescu ◽  
Liana Maria Alda ◽  
Despina Maria Bordean ◽  
Ioan Gogoasa ◽  
Iosif Gergen
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Mining Area

scholarly journals Human Health Risk Assessment of Heavy Metals in Onion Bulbs Cultivated in Katsina State, North West Nigeria

2020 ◽  
pp. 30-39
Author(s):  
A.I. Yaradua ◽  
A. J. Alhassan ◽  
A. Nasir ◽  
S. S. Matazu ◽  
A. Usman ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Cancer Risk ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Human Health Risk ◽  
Hazard Index ◽  
The United States ◽  
Potential Health ◽  
North West

Vegetable fields in Katsina State are increasingly being loaded with heavy metals through various pollution sources such as agricultural activities mining and traffic. Onion bulb samples from the three senatorial zones that constitute to make up Katsina state in the North West of Nigeria were collected and the concentrations of seven heavy metals (Pb, Cd, Cr, Fe, Zn, Mn and Ni) in all the samples were determined by atomic absorption spectrometry. The health risk assessment methods developed by the United States Environmental Protection Agency (US EPA) were employed to explore the potential health hazards of heavy metals in the samples on the children and adult population. The highest mean concentration (mg/kg) was observed for Fe, followed by Pb, Zn and Mn. While Cd has the lowest concentration with the heavy metals Cr and Ni being below detection level (BDL). Overall hazard index (Hi) for the heavy metals were within the safety limit. The overall cancer risk to the adults based on pseudo-total metal concentrations exceeded the target value, mainly contributed by Pb.  Mn and Zn were the primary heavy metals posing non-cancer risks while Pb caused the greatest cancer risk. It was concluded that consumption of the onion samples from Katsina State may contribute to the population cancer burden.

scholarly journals Pollution and Risk Assessment of Heavy Metals in the Sediments and Soils around Tiegelongnan Copper Deposit, Northern Tibet, China

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Yuhu Luo ◽  
Qinxian Jia
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Surface Sediments ◽  
Copper Deposit ◽  
Mining Area ◽  
Quality Standard ◽  
Potential Ecological Risk ◽  
National Standards

The surface sediments of the Rongna River and the surface soils around the Tiegelongnan copper deposit were collected, and the heavy metals Cu, Zn, Pb, Cr, Cd, As, Hg, and Ni were measured for their concentrations and health risk assessment. When the Rongna River passed through the Cu deposit area, the concentrations of Cu, Zn, As, Cd, Ni, and Hg in the surface sediments increased significantly, and the concentrations of Cu, Zn, and As exceeded the corresponding Grade II environmental quality standard. The heavy metals in the soil of the mining area were greater than the background value of the soil in Tibet. The geoaccumulation index indicated that the sediments of the river entering the mining area were very highly polluted by Cu and moderately polluted by Cd and Zn, and the soils in the mining area were moderately polluted by Cu. The potential ecological risk (PER) indices revealed that the sediments of the river entering the mining area had significantly high ecological risks, while the PER of the sediments away from the river section of the mining area was low, and the PER of the soils around the Cu deposit was moderate. The results of the health risk assessment indicated that the noncarcinogenic risks of heavy metals in sediments and soil of the mining area were within the acceptable range for adults and children. However, the carcinogenic risk of As and Cd in the sediment and As in the soil exceeds the relevant national standards, which may pose a certain risk to human health.

Heavy Metal Pollution in Suzhou Urban Soils and its Health Risk Assessment

2012 ◽  
Vol 534 ◽  
pp. 244-248
Author(s):  
Shu Ling Huang ◽  
Qi Li ◽  
Dong Sheng Xu
Keyword(s):  
Risk Assessment ◽  
Heavy Metal ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Industrial Production ◽  
Urban Soils ◽  
Carcinogenic Risk ◽  
Assessment Model ◽  
Intensive Investigation ◽  
Business District

An intensive investigation of 55 samples which have been collected from different functional areas was conducted to study the heavy metal distribution in urban soils of Suzhou and to construct the health risk assessment model. From the results of X-Ray fluorescence spectrometer, and comparison with the background of Anhui soils, the average concentrations of Cu、Zn、Pb and Cr were in higher level, indicated that the soils in Suzhou urban has already been polluted by Cu、Zn、Pb and Cr to a certain extent; Concentrations of heavy metal in industrial district, business district and bus station are relatively higher, Cu、Zn、Pb have close connection with transportation and industrial production, Cr mainly comes from the contamination of industrial production, and Ni is under the double influence of household and traffic pollution; Hazard indexes and non-carcinogenic risk for heavy metals in urban soils are below the limits of harmful levels, which represent the lower health risk in Suzhou City.

scholarly journals Spatial Distribution, Pollution Source, and Health Risk Assessment of Heavy Metals in Atmospheric Depositions: A Case Study from the Sustainable City of Shijiazhuang, China

Atmosphere ◽  
2019 ◽  
Vol 10 (4) ◽  
pp. 222 ◽  
Author(s):  
Kui Cai ◽  
Chang Li ◽  
Sanggyun Na
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Risk Index ◽  
Assessment Model ◽  
Pollution Level ◽  
Pb Isotope ◽  
Atmospheric Depositions ◽  
Skin Contact

Samples of atmospheric depositions from five types of functional areas in Shijiazhuang, Hebei Province, China, were collected, and the concentrations of six toxic heavy metals (Cd, Cr, Cu, Pb, Ni, and Zn) were measured. Geographic information system, Pb isotope assessment, multivariate statistical analysis (principal component analysis, PCA), the geoaccumulation index (Igeo), potential ecological risk index (PERI), and a health risk assessment model were used to study the degree of pollution, identify sources of pollution, and assess the health risks to children and adults via three pathways (hand–mouth intake, skin contact, and respiration). The results show that the high traffic volume and exhaust gas emissions have led to high concentrations of heavy metals. The Igeo and PERI values of Cd (0.38–2.0 and 108–4531, respectively), indicating the present high pollution level and potential risk, respectively, varied the most. Pb isotope and PCA showed that Pb, Zn, and Cd from atmospheric deposition come from power plants and traffic—Cu is related to traffic, and Ni and Cr come mainly from soil particles (natural source). The health risk assessment showed that heavy metals in atmospheric depositions are at a safe level in the study area.

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