scholarly journals Risk assessment of metals from shallow groundwater in Lianhuashan District, China

2020 ◽  
pp. 5-15
Author(s):  
Hui Tian ◽  
Xiujuan Liang ◽  
Yan Gong ◽  
Shimin Ma ◽  
Zhuang Kang ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Drinking Water ◽  
Hazard Index ◽  
Shallow Groundwater ◽  
Carcinogenic Risk ◽  
Dermal Absorption ◽  
Lifetime Cancer Risk ◽  
Permissible Limits ◽  
Adults And Children ◽  
Absorption Pathways

The present study was conducted to investigate trace metal (Fe, Mn, Cd, Pb, Zn, Cu, Al, As, Se, Hg, Sr, Ba, Li, Co, B, Ni, Ag, Mo and Cr) concentrations of drinking water samples in Lianhuashan District, China. Furthermore, the study aimed to ascertain carcinogenic and non-carcinogenic health risks of metals by ingestion and dermal absorption pathways to the local residents. Metal concentrations were compared with permissible limits set by the Chinese Standards, USEPA and WHO. The average concentrations of the analyzed elements are in the order of Fe > Sr > Mn > Al > Ba > Mo > Zn > B > Li > Pb > Cr > Ni > Cu > Ag > Co > As > Se > Cd > Hg. The results indicate that the concentrations of Cd, Zn, Cu, Ni, Se, Hg, Ba and Cr were lower than their respective permissible limits, whereas the concentrations of Fe, Mn, Pb, Al, As and Mo at some sampling sites exceeded the permissible limits. The total hazard index (HQtotal) of the metals (Cd, Zn, Cu, Al, Se, Hg, Sr, Ba, B, Ni, Ag, Cr) calculated through ingestion and dermal absorption pathways for adults and children were found to be lower than unity, indicating that the metals would not pose any adverse effect and non-carcinogenic health risk to the habitants. The results of carcinogenic risk assessment indicate that the Excess Lifetime Cancer Risk (ingestion and dermal exposure pathways) of metals exposure was in accordance to the acceptable lifetime risks for carcinogens in drinking water (10−6–10−4). Both non-carcinogenic and carcinogenic risks were mainly attributed to the ingestion pathways.

scholarly journals Health Risk Assessment of Fe, Mn, Cu, Cr in Drinking Water in some Wells and Springs of Shush and Andimeshk, Khuzestan Province, Southern Iran

2016 ◽  
Vol 10 (2) ◽  
pp. 29-35
Author(s):  
Mohamad Sakizadeh ◽  
◽  
Rouhollah Mirzaei ◽  
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Drinking Water ◽  
Environmental Protection Agency ◽  
Hazard Quotient ◽  
Hazard Index ◽  
Carcinogenic Risk ◽  
Manganese Concentration ◽  
Khuzestan Province ◽  
Geostatistical Methods

Background: In the current study,the hazard quotient, the hazard index (HI) and spatial variations of Fe,Mn,Cu and Cr in drinking water sources of Andimesk-Shush, Khuzestan Province, Southern Iranaquifer were assessed. Methods: We compared theconcentrations of aforementioned heavy metals in wells and springs inAndimeshk and Shush regions. The non-carcinogenic risk assessment of heavy metals was implemented usingUnited States Environmental Protection Agency (USEPA) index.The spatial maps in the area were developed by geostatistical methods. Results: Mean concentrations of heavy metals in groundwater sources of the study area in decreasing order was as follows: Cu >Mn> Fe> Cr. Except for iron,mean heavy metal concentrations were higher than the standard levels. Manganese concentration in 41.5% of the samples exceeded the permissible limits. Copper was higher than the safety limit in 74% of the samples, and chromium in 54% of the cases. The spatial pattern of heavy metals concentrations indicated higher concentrations in the southern parts of the region. The mean hazard quotients of most samples for the four heavy metals were lower than one, indicating that there was no immediate threat due to the exposure to these heavy metals. The calculated accumulated hazards of these heavy metals produced different results, with hazard indices of higher than one. Conclusion: The accumulated hazard indicesfor the evaluated metals were higher than one, indicating that chronic ingestion of these waters threatens the health of local consumers on the long run.

scholarly journals Health risk assessment of selected metals through tap water consumption in Upper Silesia, Poland

2020 ◽  
Vol 18 (2) ◽  
pp. 1607-1614
Author(s):  
Rajmund Michalski ◽  
Paulina Pecyna-Utylska ◽  
Joanna Kernert ◽  
Katarzyna Grygoyć ◽  
Justyna Klyta
Keyword(s):  
Risk Assessment ◽  
Tap Water ◽  
Hazard Quotient ◽  
Daily Intake ◽  
Hazard Index ◽  
Carcinogenic Risk ◽  
Human Consumption ◽  
Upper Silesia ◽  
Adults And Children ◽  
Carcinogenic Metals

AbstractThe research focused on assessing the risk to human health resulting from the content of selected Cr, Co, Mn, Cu, Ni, Pb, As, Zn and Sr metals in tap water supplied by Upper Silesia Water Plant to the inhabitants of the Upper Silesia region (Poland). It is the main supplier of drinking water to several million inhabitants of this agglomeration. Samples were taken and analyzed quarterly in 2019. The sampling points were chosen to help identify the source when an elevated level of a particular contaminant is observed. ICP-MS and ICP-OES have been used to measure the concentrations of those elements. The chronic daily intake (CDI), hazard quotient (HQ) and hazard index (HI) results for non-carcinogenic risk assessment of metals in tap water has been assessed. CDI values of non-carcinogenic metals were higher in children than in adults; the CDI values for adults and children were found in the order of: Zn > Sr > Cu > Mn > Ni > Pb > Cr > Co > As. All the studied metals had HQ values below 1, the risks caused by the non-carcinogenic metals decreased in the following order: Zn > Cu > Co > As > Sr > Pb > Cr > Ni > Mn. HI values were also less than 1, that meaning that the analyzed tap water is safe for human consumption. The concentration of As, Cr, Cu, Mn and Ni in analyzed tap water is in accordance with Polish and international requirements.

scholarly journals Spatial Analysis of Human Health Risk Associated with Trihalomethanes in Drinking Water: A Case Study of Karachi, Pakistan

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Zahida Karim ◽  
Bilal Aslam Qureshi ◽  
Ishtiaq Ghouri
Keyword(s):  
Drinking Water ◽  
Cancer Risk ◽  
Health Risk ◽  
Human Health ◽  
Interpolation Method ◽  
Human Health Risk ◽  
Hazard Index ◽  
Dermal Absorption ◽  
Oral Ingestion ◽  
Lifetime Cancer Risk

The objective of this study was to spatially analyze total trihalomethanes (TTHMs) and health risk associated with TTHMs in drinking water of different densely populated towns of Karachi city. Lifetime cancer risk and hazard index of THMs through oral ingestion and dermal absorption were calculated and mapped using kriging as an interpolation method to evaluate the carcinogenic and noncarcinogenic risk to human health in the study area. Lifetime cancer risk value due to the oral ingestion of TTHMs in different towns of the city was exceeded from1.0×10−6, showing that residents of these towns were expected to be at higher cancer risk. The hazard index for different towns was found to be lower than unity, indicating that no adverse health effects are expected as a result of exposure to THMs.

scholarly journals Risk assessment of Ni, Cr, and Si release from alkaline minerals during enhanced weathering

2020 ◽  
Vol 5 (1) ◽  
pp. 166-175
Author(s):  
Fatima Haque ◽  
Yi Wai Chiang ◽  
Rafael M. Santos
Keyword(s):  
Risk Assessment ◽  
Environmental Protection Agency ◽  
Hazard Index ◽  
Carcinogenic Risk ◽  
Contamination Level ◽  
Potential Threat ◽  
Silicate Minerals ◽  
Guideline Value ◽  
Quality Guideline ◽  
Index Value

AbstractCalcium- and magnesium-rich alkaline silicate minerals, when applied to soil, can aid in carbon dioxide sequestration via enhanced weathering. The weathering of these silicate minerals is also associated with the release of heavy metals such as Ni and Cr, depending on the composition of the parent rock, and also labile Si. This paper critically analyses the risk associated with the release of Ni, Cr, and Si from alkaline silicate minerals as a result of enhanced weathering to evaluate its potential to be applied as a soil amendment. Based on the available data in the literature, this study evaluates the soil contamination level and quantifies the risk these elements pose to human health as well as the environment. To assess these potential threat levels, the geoaccumulation index was applied, along with the method recommended by the US Environmental Protection Agency for health risk assessment. The main findings of this study indicate the potential release of Ni, Cr, and Si to exceed the soil quality guideline value. The geochemical index suggests that the analyzed samples are in the class 0–3 and represents sites that lie between uncontaminated zones to highly contaminated zones. The hazard index value for Ni and Cr is greater than unity, which suggests that Ni and Cr release poses a non-carcinogenic risk. The probability of labile Si concentration in the soil to exceed the critical value is found to be 75%.

scholarly journals Human health impact assessment and temporal distribution of trace elements in Copșa Mică- Romania

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Katalin Bodor ◽  
Zsolt Bodor ◽  
Alexandru Szép ◽  
Róbert Szép
Keyword(s):  
Trace Elements ◽  
Hazard Quotient ◽  
Temporal Distribution ◽  
Health Impact ◽  
Temporal Variations ◽  
Carcinogenic Risk ◽  
Dermal Absorption ◽  
Safe Limit ◽  
Adults And Children ◽  
Mean Concentration

AbstractThe present study aims to analyze the temporal variations of PM10 and to assess the health risk indexes caused by trace elements from particulate matter (PM10) via inhalation, ingestion, and dermal absorption by adults and children in Copșa Mică (Romania) during 2009–2019. The results revealed a high multi-annual mean concentration of PM10 and trace elements. The analyzed air pollutants showed a decreasing trend during the studied years, therefore 44.11%, 43.48%, 36.07%, 16.02%, and 15.80% lower values were observed for As, Cd, Ni, PM10, and Pb, respectively, due to environmental regulations. The daily exceedance percentage of Pb and Cd was very high, representing 21.74% and 11.26%, followed by PM10 and As concentrations with 4.72% and 3.92%. The ratio between the trace element concentration measured in Copșa Mică and the country average was 2.46, 4.01, 2.44 and 10.52 times higher for As, Cd, Ni and Pb. The calculated Hazard Quotient values via inhalation were higher than the safe limit (1), which accounted 1.81, 3.89 and 4.52, for As, Cd and Ni, respectively, indicating that the trace elements might present a non-carcinogenic risk to both adults and children. Furthermore, the concentration of all studied trace elements in Copșa Mică showed cancer risk for adults via inhalation and dermal absorption as well.

scholarly journals Evaluation of Chemical Parameters of Urban Drinking Water Quality along with Health Risk Assessment: A Case Study of Ardabil Province, Iran

2021 ◽  
Vol 18 (10) ◽  
pp. 5179
Author(s):  
Reza Aghlmand ◽  
Saeed Rasi Nezami ◽  
Ali Abbasi
Keyword(s):  
Water Quality ◽  
Risk Assessment ◽  
Drinking Water ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Water Distribution ◽  
Hazard Quotient ◽  
Hazard Index ◽  
World Health ◽  
Study Region

In recent years, in addition to water resources’ quantity, their quality has also received much attention. In this study, the quality of the urban water distribution network in northwestern Iran was evaluated using the water quality index (WQI) method. Then, some important trace elements were investigated, and finally, the health risk assessment was evaluated for both carcinogenic elements (Ni, Cd, Cr, Pb, and As) and non-carcinogenic elements (Ca, Mg, Na, K, F, NO3, and Cu) using carcinogenic risk (CR) and hazard quotient (HQ), respectively. In the present study, the WQI was calculated based on both World Health Organization (WHO) and Iranian drinking water standards. Comparing the results of these standards revealed that the WQI based on the Iranian standard was slightly higher. Regarding the calculated WQI for the study region, the status of water quality for drinking consumption is in the good water quality class (25 < WQI < 50). It was observed that Cu and Cd have the highest and lowest concentrations in all sampling points, respectively. Hazard Index (HI) results showed that the non-carcinogenic substances studied had a low risk for both adults and children (<1.0). However, the CR results showed that Ni, Cd, and As were above the desired level for both children and adults. The results of this study can be applied for efficient water management and human health protection programs in the study area.

Toxicological Risk Associated with Consumption of Rice Sold in Uganda

2021 ◽  
Vol 2 (6) ◽  
Author(s):  
Leatitiah Namubiru ◽  
Denis Male ◽  
Ivan Mukisa Muzira ◽  
Yusuf Byenkya Byaruhanga
Keyword(s):  
Value Chain ◽  
Daily Intake ◽  
Hazard Index ◽  
Dietary Exposure ◽  
Carcinogenic Risk ◽  
Regulatory Body ◽  
Lifetime Cancer Risk ◽  
Potential Health ◽  
Timely Feedback ◽  
Rice Samples

Previous studies have reported the presence of aflatoxins (AFB1, AFB2, AFG1 and AFG2), heavy metals (As, Cd and Pb) and organochlorine pesticide residues (OCPs) in rice sold in Uganda. However, the potential health effects associated with consumption of rice have not been evaluated. The aim of this study was to evaluate the health risk of consuming rice sold in Uganda. A total of 45 packed and 30 open traded rice samples were randomly collected from retail outlets in the main rice trading areas of Uganda. Rice was analysed for AFB1, AFB2, AFG1 and AFG2, As, Cd, Pb and OCPs using AOAC standard methods. Dietary exposure of the consumers to contaminants was assessed using the estimated daily intake (EDI). The Hazard index (HI) and the incremental lifetime cancer risk (ILCR) were determined to define the non-carcinogenic and carcinogenic risk from contaminants, respectively. The potency of liver cancer cases in Uganda was 1.02E-5 and 1.05E-5 adults/year/100,000, and 6.50E-4 and 6.72E-5 infants /year/100,000 for open traded and packed rice, respectively. The values obtained for the ILCR for Arsenic detected in rice were 1.14E-2 and 7.28E-2 for adults and infants, respectively. The ILCR of all detected OCPs in adults and infants were higher than 1.0E-4, in both open traded and packed rice. This study established a potential carcinogenic risk from consumption of rice sold in Uganda in both infants and adults at the current level of contamination and consumption rate. Establishment of a monitoring system along the entire rice value chain; enforced by a national regulatory body can provide timely feedback on the levels of contamination and the progress in reducing the contamination burden.

scholarly journals RISK ASSESSMENT OF CHILDREN’S HEALTH DUE TO THE CHEMICAL COMPOSITION OF DRINKING WATER SOURCES OF THE NON-CENTRALIZED WATER SUPPLY OF THE CITY OF EKATERINBURG

2019 ◽  
Vol 98 (9) ◽  
pp. 997-1003 ◽  
Author(s):  
Lidia G. Konshina
Keyword(s):  
Risk Assessment ◽  
Drinking Water ◽  
Water Supply ◽  
Oral Route ◽  
Carcinogenic Risk ◽  
Water Sources ◽  
The Body ◽  
Arsenic Compounds ◽  
Traditional Assessment ◽  
The City

Introduction. In recent years, the risk assessment methodology has become the leading tool for assessing the health of various groups of the population, allowing identifying priority negative environmental factors. Material and methods. There were explored 212 wells, including 150 in collective gardens and 62 in cottage settlements. The priority oral route of chemical intake into the body was studied. Results. Nitrates and arsenic compounds create the main non-carcinogenic risk in the sources of non-centralized water supply in the territory of the Municipal Settlement of the city of ekaterinburg. When using water from wells in cottage settlements levels of non-carcinogenic risks are significantly lower than non-carcinogenic risks in horticultural partnerships. Acceptable level of non-carcinogenic risk for children under 6 years are related with 17.4% of water sources in collective gardens and 25% of wells in cottage settlements; for adults - 60.8% and 93.8% respectively. The detected nitrate concentrations in individual wells of horticultural associations can create a high non-carcinogenic risk. The total individual lifetime carcinogenic risk, both in the water of collective gardens and in the water wells of cottage settlements ranges from 10-5 to 10-4 and, therefore, is at a low level, the greatest contribution is made by arsenic compounds. Discussion. In contrast to the earlier traditional assessment of drinking water quality, when the main substances for which the discrepancy was found to hygienic standards were manganese, nitrates, iron and silicon, in the assessment of water danger using the methodology of risk assessment, nitrates and arsenic come to the first place, with a much smaller role of manganese. The calculation of carcinogenic risks using age correction factors (ADAF) has increased the risk values calculated by the traditional method by almost 2 times. Summary Levels of non-carcinogenic risks when using water from wells in cottage settlements are significantly lower than non-carcinogenic risks in horticultural partnerships.

scholarly journals Butyl Benzyl Phthalate in Urban Sewage by Magnetic-Based Immunoassay: Environmental Levels and Risk Assessment

Biosensors ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 45
Author(s):  
Xia Hong ◽  
Yin Cui ◽  
Ming Li ◽  
Yifan Xia ◽  
Daolin Du ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Drinking Water ◽  
Limit Of Detection ◽  
Environmental Water ◽  
Carcinogenic Risk ◽  
Essential Information ◽  
Detection Range ◽  
Urban Sewage ◽  
Butyl Benzyl Phthalate ◽  
Positive Rate

A magnetic-based immunoassay (MBI) combined with biotin-streptavidin amplification was proposed for butyl benzyl phthalate (BBP) investigation and risk assessment. The values of LOD (limit of detection, IC10) and IC50 were 0.57 ng/mL and 119.61 ng/mL, with a detection range of 0.57–24977.71 ng/mL for MBI. The specificity, accuracy and precision are well demonstrated. A total of 36 environmental water samples of urban sewage from Zhenjiang, China, were collected and assessed for BBP contamination. The results show that BBP-positive levels ranged from 2.47 to 89.21 ng/mL, with a positive rate of 77.8%. The health effects of BBP in the urban sewage were within a controllable range, and the ambient severity for health (ASI) was below 1.49. The highest value of AS for ecology (ASII) was 7.43, which indicates a potential harm to ecology. The entropy value of risk quotient was below 100, the highest being 59.47, which poses a low risk to the environment and ecology, indicating that there is a need to strengthen BBP controls. The non-carcinogenic risk of BBP exposure from drinking water was higher for females than that for males, and the non-carcinogenic risk from drinking-water and bathing pathways was negligible. This study could provide an alternative method for detecting BBP and essential information for controlling BBP contamination.

Sign in / Sign up

Export Citation Format

Share Document