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

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.

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11853
Author(s):  
Xingyong Zhang ◽  
Qixin Wu ◽  
Shilin Gao ◽  
Zhuhong Wang ◽  
Shouyang He

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.


Chemosphere ◽  
2017 ◽  
Vol 184 ◽  
pp. 1230-1240 ◽  
Author(s):  
Gevorg Tepanosyan ◽  
Lilit Sahakyan ◽  
Olga Belyaeva ◽  
Nairuhi Maghakyan ◽  
Armen Saghatelyan

2008 ◽  
Vol 73 (8-9) ◽  
pp. 923-934 ◽  
Author(s):  
Ivan Grzetic ◽  
Ahmed Ghariani

An investigation of the soil quality in the centre of Belgrade was per- formed to define how seriously the soil is polluted. On the basis of the heavy metal content (Zn, Cd, Pb, Co, Ni, Cu, Cr and Mn), the potential health risk assessment calculated for a lifetime of exposure (ingestion and inhalation), based on the USEPA model, was determined as the cumulative carcinogenic and non-carcinogenic risk for children and adults. The study proved that soil contamination in Belgrade is not insignificant; risk assessment indicated that the carcinogenic risk is completely insignificant but the cumulative non-carcinogenic risk tends to became significant, mainly for children, since it approaches unacceptable values. There is no particularly dangerous single heavy metal, but their cumulative effect, expressed as Child Soil Ingestion Hazardous Index, is for concern.


2019 ◽  
Vol 9 (22) ◽  
pp. 4755 ◽  
Author(s):  
Zhihua Tang ◽  
Minru Liu ◽  
Linzi Yi ◽  
Huafang Guo ◽  
Tingping Ouyang ◽  
...  

This research focused on the contents of the five most bio-toxic heavy metals, As, Cd, Hg, Cr, and Pb of 26 municipal solid waste (MSW) samples from the Eastern Guangdong Area. To investigate the apportion of the heavy metal source, Pearson correlation and principal component analysis (PCA) were introduced as major approaches. The health risks posed to MSW workers exposed to heavy metals in MSW were assessed using a Monte Carlo simulation combined with the US Environmental Protection Agency Health Risk Assessment Model. The As, Cd, Hg, Cr, and Pb contents of the east Guangdong MSW were (0.76 ± 0.75), (2.14 ± 4.44), (0.11 ± 0.14), (55.42 ± 31.88), and (30.67 ± 20.58) mg/kg, respectively. Hg, Cr, and Pb were potentially derived from glass, textile, food waste, and white plastic, while As and Cd were mainly derived from soil and food waste in the MSW. The non-carcinogenic risks of heavy metal in MSW exposure to MSW workers could be ignored. However, the heavy metals in MSW might pose carcinogenic risks, with the probabilities for male and female workers being 35% and 45%, respectively. The non-carcinogenic and carcinogenic risk indices were slightly higher for female workers under the same exposure situations.


2020 ◽  
Vol 20 (2) ◽  
pp. 1-10
Author(s):  
J. Seidu ◽  
A. Ewusi

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


2019 ◽  
Vol 1 (2) ◽  
pp. 16-18
Author(s):  
IBRAHIM SANI SHABANDA

Rapid industrialization and modernization of urban cities has resulted to serious environmental contamination by metals, as a result the exposed inhabitants experienced health consequences. Therefore health risk assessment through multiple pathways is required for the health safety of the population. However, few studies to date estimate the health risk of heavy metals via different pathways on urban soils.  Samples of urban soils  were collected from urban environments of Petaling Jaya, and were analysed for As, Cd, Cr, Cu and Pb. The health risks for adults as a result of ingestion, dermal and inhalation exposure were then estimated.  The results showed that the urban soils  were polluted with these metals. This could be due to anthropoenic input. The concentration of the metals in soils follows the decreasing order Pb > As > Cr > Cu and Cd. Ingestion is the main route for exposure to heavy metals. Both the carcinogenic and non-carcinogenic risk values are within the permissible limits. Adults could be vulnerable to non-carcinogenic health risk (HI) on exposure to As in urban soil.  Keyword: health risk, heavy metals, soils, dusts


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