Secondary geochemical dispersion in the Precambrian auriferous Hutti-Maski schist belt, Raichur district, Karnataka, India. Part I: anomalies of As, Sb, Hg and Bi in soil and groundwater

Sahoo, N.; Pandalai, H. S.

doi:10.1016/s0375-6742(00)00158-8

Cited by 9 publications

(1 citation statement)

References 25 publications

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“…GeoScience Victoria, Department of Primary Industries, supplied the Victorian Geoscientific Data Package DVD current in 2006, which included arsenic concentrations determined from the 1960s to the 1990s using various assay techniques, including X-ray fluorescence (XRF) spectroscopy, hydride-generation atomic absorption spectroscopy and acid digest followed by ICP-MS, from which additional geochemical data for 49 SLAs (n ¼ 68,497) were obtained. Sometimes collected using arsenic as a pathfinder for gold to facilitate mineral exploration, 27 sampling sites were typically highly clustered and irregular. Arsenic concentrations ranged from 0.1 to 18,900 mg/kg (geometric mean 12.5 mg/kg).…”

Section: Soil Arsenic Exposure Metricsmentioning

confidence: 99%

Cancer incidence and soil arsenic exposure in a historical gold mining area in Victoria, Australia: A geospatial analysis

Pearce

Dowling

Sim

2012

J Expo Sci Environ Epidemiol

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Soil and mine waste around historical gold mining sites may have elevated arsenic concentrations. Recent evidence suggests some systemic arsenic absorption by residents in the goldfields region of Victoria, Australia. Victorian Cancer Registry and geochemical data were accessed for an ecological geographical correlation study, 1984-2003. Spatial empirical Bayes smoothing was applied when estimating standardised incidence ratios (SIRs) for cancers in 61 statistical local areas. The derived soil arsenic exposure metric ranged from 1.4 to 1857 mg/kg. Spatial autoregressive modelling detected increases in smoothed SIRs for all cancers of 0.05 (95% confidence interval (CI), 0.02-0.08) and 0.04 (0.01-0.07) per 2.7-fold increase in the natural log-transformed exposure metric for males and females, respectively, in more socioeconomically disadvantaged areas; for melanoma in males (0.05 (0.01-0.08) adjusted for disadvantage) and females (0.05 (0.02-0.09) in disadvantaged areas). Excess risks were estimated for all cancers (relative risk 1.21 (95% CI, 1.15-1.27) and 1.08 (1.03-1.14)), and melanoma (1.52 (1.25-1.85) and 1.29 (1.08-1.55)), for males and females, respectively, in disadvantaged areas in the highest quintile of the exposure metric relative to the lowest. Our findings suggest small but significant increases in past cancer risk associated with increasing soil arsenic in socioeconomically disadvantaged areas and demonstrate the robustness of this geospatial approach.

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Section: Soil Arsenic Exposure Metricsmentioning

confidence: 99%

Cancer incidence and soil arsenic exposure in a historical gold mining area in Victoria, Australia: A geospatial analysis

Pearce

Dowling

Sim

2012

J Expo Sci Environ Epidemiol

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A Review and Evaluation of the Impacts of Climate Change on Geogenic Arsenic in Groundwater from Fractured Bedrock Aquifers

Bondu

Cloutier

Rosa

et al. 2016

Water Air Soil Pollut

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Hydrogeochemistry as a Tool for Platinum Group Element (PGE) Exploration – A Case Study from Sittampundi Anorthosite Complex, Southern India

Balaram

Satyanarayanan

Anabarasu

et al. 2019

Journal of the Geological Society of India

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The use of surface and ground water for exploration of platinum group elements (PGE) has been studied in the Sittampundi anorthosite complex, Tamil Nadu, south India, where PGE mineralization is known to occur in basic and ultrabasic rocks. Groundwater interacting with mineralized rocks creates a geochemical signature which can be linked to the occurrence and distribution of PGE, especially Pd because of its leachability and relatively high mobility in aqueous environment. Forty surface and ground water samples collected from the area were analyzed for PGE and several other major, minor and trace elements using high resolution inductively coupled plasma mass spectrometer (HR-ICP-MS) to investigate the distribution patterns of individual PGE and other elements for the purpose of evaluating the utility of hydrogeochemistry as a tool for PGE exploration studies. Ground and surface water chemistry reflected the chemical composition of host lithology, particularly the basic-ultrabasic rocks of the region, with the dispersion of PGE and high anomalous concentrations of Pd, Ru and Rh along with several other metals such as Zn, V, Cr and Ni indicating PGE mineralization. The results of this study suggest that groundwater chemistry has significant potential as a PGE exploration tool with advantages such as rapid and low-cost sampling, high contrast anomalies and a uniform sampling medium.

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Secondary geochemical dispersion in the Precambrian auriferous Hutti-Maski schist belt, Raichur district, Karnataka, India. Part I: anomalies of As, Sb, Hg and Bi in soil and groundwater

Cited by 9 publications

References 25 publications

Cancer incidence and soil arsenic exposure in a historical gold mining area in Victoria, Australia: A geospatial analysis

Cancer incidence and soil arsenic exposure in a historical gold mining area in Victoria, Australia: A geospatial analysis

A Review and Evaluation of the Impacts of Climate Change on Geogenic Arsenic in Groundwater from Fractured Bedrock Aquifers

Hydrogeochemistry as a Tool for Platinum Group Element (PGE) Exploration – A Case Study from Sittampundi Anorthosite Complex, Southern India

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