Evaluation of groundwater quality and heavy metal pollution indices in Bazman basin, southeastern Iran

Rezaei, Ali; Hassani, Hossein; Hassani, Sara; Jabbari, Nima; Mousavi, Seyedeh Belgheys Fard; Rezaei, Sajjad

doi:10.1016/j.gsd.2019.100245

Cited by 156 publications

(39 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The values of coefficients (S i , I i , guideline value, and W i ) used in HPI computation. The HEI presents the overall groundwater quality with respect to heavy metals content, and is computed using Equation (7) [43]:…”

Section: Water Quality Index (Wqi)mentioning

confidence: 99%

See 1 more Smart Citation

Quality and Health Risk Assessment Associated with Water Consumption—A Case Study on Karstic Springs

Moldovan

Hoaghia

Kovács

et al. 2020

Water

View full text Add to dashboard Cite

In rural areas without centralized water supply systems, inhabitants often use groundwater of unknown quality as drinking water, without understanding the possible negative consequences on their health. Karstic spring waters from Dobrogea region in Romania were assessed for their potential to be used as drinking water source, according to their quality and seasonal variation. The physico-chemical parameters of waters were compared with the guideline values for drinking water established by the World Health Organization and the Directive 98/83/EC. The nitrate and Cr concentrations exceeded the guideline value in the springs from Southern Dobrogea, but met the quality criteria in those from Northern Dobrogea, thus, to be used as drinking water, the karstic springs located in Southern Dobrogea require treatment for nitrates removal. Heavy metals pollution indices showed low to medium cumulative heavy metal pollution in all springs, while the human health risk assessment by oral exposure indicated possible noncarcinogenic risks of nitrates, both for adults and children in springs from South Dobrogea. A rigorous monitoring of the water quality before human consumption is recommended for all four studied water sources.

show abstract

Section: Water Quality Index (Wqi)mentioning

confidence: 99%

“…where, H c is the determined value of the ith parameter and S i represents the guideline value, according to WHO and the Directive 98/83/EC [28,40] ( Table 2). The HEI classifies the water as low (HEI < 1), medium (1 < HEI < 2), and highly polluted (HEI > 2) [43].…”

Section: Heavy Metalmentioning

confidence: 99%

Quality and Health Risk Assessment Associated with Water Consumption—A Case Study on Karstic Springs

Moldovan

Hoaghia

Kovács

et al. 2020

Water

View full text Add to dashboard Cite

show abstract

“…These are usually assigned subjectively by experts [15,22]. Additionally, various water quality indices have been proposed for evaluation of water quality based on heavy metals [23,24]. One of these indices is heavy metal pollution index (HPI).…”

Section: Introductionmentioning

confidence: 99%

“…Although several studies have assessed the groundwater quality based on heavy metal pollution for different purposes [4,23,[28][29][30][31], there are only a few studies in arid and semiarid regions [22,24,32]. Considering this, the main objective of the current study is to test an innovative method involving entropy weighted groundwater quality index (EWQI) for both physicochemical and heavy metal content in a semiarid region that can be used by decision and policymakers for improving water resources management.…”

Section: Introductionmentioning

confidence: 99%

Use of Heavy Metal Content and Modified Water Quality Index to Assess Groundwater Quality in a Semiarid Area

Maskooni

Naseri-Rad

Berndtsson

et al. 2020

Water

View full text Add to dashboard Cite

Groundwater is a major source of drinking and agricultural water supply in arid and semiarid regions. Poor groundwater quality can be a threat to human health especially when it is combined with hazardous pollutants like heavy metals. In this study, an innovative method involving entropy weighted groundwater quality index for both physicochemical and heavy metal content was used for a semiarid region. The entropy weighted index was used to assess the groundwater’s suitability for drinking and irrigation purposes. Thus, groundwater from 19 sampling sites was used for analyses of physicochemical properties (electrical conductivity—EC, pH, K+, Ca2+, Na+, SO42−, Cl−, HCO3−, TDS, NO3−, F−, biochemical oxygen demand—BOD, dissolved oxygen—DO, and chemical oxygen demand—COD) and heavy metal content (As, Ca, Sb, Se, Zn, Cu, Ba, Mn, and Cr). To evaluate the overall pollution status in the region, heavy metal indices such as the modified heavy metal pollution index (m-HPI), heavy metal evaluation index (HEI), Nemerow index (NeI), and ecological risks of heavy metals (ERI) were calculated and compared. The results showed that Cd concentration plays a significant role in negatively affecting the groundwater quality. Thus, three wells were classified as poor water quality and not acceptable for drinking water supply. The maximum concentration of heavy metals such as Cd, Se, and Sb was higher than permissible limits by the World Health Organization (WHO) standards. However, all wells except one were suitable for agricultural purposes. The advantage of the innovative entropy weighted groundwater quality index for both physicochemical and heavy metal content, is that it permits objectivity when selecting the weights and reduces the error that may be caused by subjectivity. Thus, the new index can be used by groundwater managers and policymakers to better decide the water’s suitability for consumption.

show abstract

“…The PCA method is widely used to reduce data and to extract a small number of latent factors for analyzing relationships among the observed variables. It has been reported that PCA methods have been widely used in geochemical applications to identify soil pollution sources and distinguish natural versus anthropogenic contribution [39].…”

Section: Statistical Analysesmentioning

confidence: 99%

Assessment of Heavy Metals Contamination in Surface Soils in Meiduk Copper Mine Area, Se Iran

Rezaei¹,

Hassani²,

Mousavi³

et al. 2019

Earth sci. Malays.

Self Cite

View full text Add to dashboard Cite

Mining activities are potentially a significant source of metals contamination in the environment. The purpose of this research is to investigate the environmental impacts of mining activities in the vicinity of Meiduk copper mine. In this study, we use the pollution indices such as contamination factor, enrichment factor and geo-accumulation index for evaluating the metal contaminants, including Pb, Ni, Se, Mo and Zn. The fieldwork consisted of 60 surface soil samples drawn at the depth of 0-30 cm. The samples were, then, analyzed for metals using ICP-MS method. Principal component analysis of compositional data (PCA) was also applied as a multivariate method to find relationships among metals. In the first component (PC1), with 51% of the total variance, strong and positive loadings related to Pb, Se, Mo and Zn were evident. The second component (PC2), with 34 % of the total variance, reflected a positive weighting factor of Ni metal. The obtained results showed that heavy metals levels and distribution were found higher at sites which were in the vicinity of mine pits and waste dumps and were probable sources of metal pollution. As an application of the method proposed in this research, project management will be capable of programming timely and suitable response to these risks by identifying risk factors and their contamination level.

show abstract

Evaluation of groundwater quality and heavy metal pollution indices in Bazman basin, southeastern Iran

Cited by 156 publications

References 49 publications

Quality and Health Risk Assessment Associated with Water Consumption—A Case Study on Karstic Springs

Quality and Health Risk Assessment Associated with Water Consumption—A Case Study on Karstic Springs

Use of Heavy Metal Content and Modified Water Quality Index to Assess Groundwater Quality in a Semiarid Area

Assessment of Heavy Metals Contamination in Surface Soils in Meiduk Copper Mine Area, Se Iran

Contact Info

Product

Resources

About