Hydrochemical and isotopic studies to understand quality problems in groundwater of the Niğde Province, Central Turkey

Lermi, Abdurrahman; Ertan, Gökhan

doi:10.1007/s12665-019-8365-2

Cited by 20 publications

(6 citation statements)

References 63 publications

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“…These studies documented evidence of heavy metal pollution in sediments and attributed it to abandoned mines along the creeks and leachate from domestic and industrial wastes. Even the groundwater resources contain very high arsenic (As) concentrations due to the prevalence of several anthropogenic activities and mixing with geothermal waters (Lermi and Ertan, 2019). There is the possibility of metal transport from the creeks and groundwater resources to the streams investigated in this study.…”

Section: Introductionmentioning

confidence: 98%

“…Studies on heavy metal pollution in the stream sediments in the area are limited. Most of the studies were conducted to determine the heavy metal contents of the Karasu Creek (Yalcin et al, 2007(Yalcin et al, , 2008a, Gümüşler Creek (Yalcin et al, 2008b), and groundwater resources (Lermi and Ertan, 2019) in the Niğde Municipality, which is not part of our study area. These studies documented evidence of heavy metal pollution in sediments and attributed it to abandoned mines along the creeks and leachate from domestic and industrial wastes.…”

Section: Introductionmentioning

confidence: 99%

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Geochemistry, risk assessment, and Pb isotopic evidence for sources of heavy metals in stream sediments around the Ulukışla Basin, Niğde, southern Turkey

Lermi¹,

Sunkari²

2020

Turkish J Earth Sci

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Concentrations of selected elements (Al, Fe, Mn, Mo, As, Cd, Cu, Cr, Ni, Co, Pb, Sb, and Zn) and Pb isotope ratios were determined in 53 sediments from Alihoca, Gümüş, Horoz, and Çakıt streams around the south-central Taurides (Ulukışla Basin), Niğde, which is a known mining province in Turkey. Several pollution and risk assessment indices were used to assess possible heavy metal pollution in the stream sediments and the associated potential ecological risks. Concentrations of As, Cd, Cu, Cr, Ni, Co, Pb, Sb, and Zn were elevated in the streams located near ancient mines, active mines, and slag piles in the area, suggesting an influence from mining activities. The pollution assessment indices indicated that the sediments were significantly polluted by As, Cd, Sb, Zn, and Pb and moderately polluted by Cu, Ni, Cr, and Co. The sediments show very high potential ecological risk with As, Cd, Sb, and Pb as the principal contributors. Ni, Cr, As, Pb, Zn, and Cd exceeded the probable effect concentrations in most of the samples implying that their concentrations may frequently affect sediment-dwelling organisms. Multivariate statistical analyses indicate that the accumulation of heavy metals in the stream sediments is due to an interplay of anthropogenic activities (mining and agrochemical application) and geogenic processes (weathering of bedrocks and supergene alteration of base metal-rich mineralization). Pb isotopic tracing indicates that total Pb in the sediments (206 Pb/ 207 Pb = 1.09-1.29) is primarily from weathering and dissolution of ultrapotassic rocks (206 Pb/ 207 Pb up to 1.20) and galena (206 Pb/ 207 Pb up to 1.21) from the Pb-Zn-Au deposits in the area with some anthropogenic input from mine slag piles (206 Pb/ 207 Pb = 1.10).

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Geochemistry, risk assessment, and Pb isotopic evidence for sources of heavy metals in stream sediments around the Ulukışla Basin, Niğde, southern Turkey

Lermi¹,

Sunkari²

2020

Turkish J Earth Sci

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“…However, due to the increasing rate of anthropogenic activities, the PTEs are being re-dispersed resulting in elevated concentrations (Elnazer and Salman 2020). Globally, it is well documented that the main anthropogenic sources of PTEs in the soilwater-plant system are mining activities, agricultural activities, sewage disposal, industrial and vehicular emissions (Lermi and Ertan 2019;Zango et al 2019;Çiner et al 2020;Kovacheva et al 2020;Liu et al 2020;Nganje et al 2020). Among these, mining activities are the dominant routes of PTEs in the soil-water-plant system in metallogenic provinces.…”

Section: Introductionmentioning

confidence: 99%

Pollution and Probabilistic Human Health Risk Assessment of Potentially Toxic Elements in the Soil-water-plant System in the Bolkar Mining District, Niğde, South-central Turkey

Lermi

Sunkari

2021

Preprint

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Globally, potentially toxic elements (PTEs) are regarded as an important group of pollutants for the wider environment because of their intrinsic toxicity and probable accumulation in the soil-water-plant system. In this regard, this study assessed the pollution levels and probable human health risks of PTEs in the soil-water-plant system in the Bolkar mining district of the Niğde Province in south-central Turkey. Pollution assessment using contamination factor, enrichment factor, index of geoaccumulation, and soil pollution index reveals moderate to extremely high pollution of PTEs in the soil, exposing the soils to extreme toxicity levels. The areas that fall under the toxic to extremely toxic categories are in proximity to the ore slags and agricultural lands towards the central and southern domains of the study area. The water hazard index (WHI) values indicate that 100% of the samples collected in both winter and fall seasons are of extreme toxicity (WHI > 15). Arsenic is the dominant contaminant among the PTEs in the soil and water samples. The bioconcentration factor values of the PTEs in most of the fruit plants are > 1, indicating very high levels of element transfer from the soil and water to the plants. The probabilistic human health risk assessment involved exposure to arsenic in groundwater (a major pathway to humans) since it is the only carcinogenic element in this study. The estimated daily intake of arsenic-contaminated water exceeds the safe limit of 5 × 10− 8 mg/kg/day. About 33.3% and 55.6% of the groundwater samples have higher hazard quotient and carcinogenic risk values of arsenic in the winter and fall seasons, respectively. This implies that the people are more exposed to the carcinogenic effects of drinking arsenic-contaminated water.

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Section: Introductionmentioning

confidence: 99%

Pollution and probabilistic human health risk assessment of potentially toxic elements in the soil-water-plant system in the Bolkar mining district, Niğde, south-central Turkey

Lermi

Sunkari

2021

Environ Sci Pollut Res

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Hydrochemical and isotopic studies to understand quality problems in groundwater of the Niğde Province, Central Turkey

Cited by 20 publications

References 63 publications

Geochemistry, risk assessment, and Pb isotopic evidence for sources of heavy metals in stream sediments around the Ulukışla Basin, Niğde, southern Turkey

Geochemistry, risk assessment, and Pb isotopic evidence for sources of heavy metals in stream sediments around the Ulukışla Basin, Niğde, southern Turkey

Pollution and Probabilistic Human Health Risk Assessment of Potentially Toxic Elements in the Soil-water-plant System in the Bolkar Mining District, Niğde, South-central Turkey

Pollution and probabilistic human health risk assessment of potentially toxic elements in the soil-water-plant system in the Bolkar mining district, Niğde, south-central Turkey

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