Determination of radon concentration levels in well water in Konya, Turkey

Erdogan, Mehmet; Eren, N.; Demirel, Sennur; Zedef, Veysel

doi:10.1093/rpd/nct099

Cited by 26 publications

(8 citation statements)

References 15 publications

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“…Erdogan et al found a slight positive correlation in their study of wells in Turkey. 21 Alkalinity and turbidity, however, showed a clearer trend and positive correlation. Other studies with physico-chemical parameters did not indicate any correlations.…”

Section: Discussionmentioning

confidence: 92%

Assessment of Radon Levels in Drinking Water Wells in St. Catherine, Jamaica

Smith

Voutchkov

2017

Journal of Health and Pollution

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Background.Radon is a known carcinogen and contaminant in drinking water wells, but is not monitored in drinking water quality programs in Jamaica.Objective.The present study was conducted to obtain radon data in local drinking water and evaluate potential health risks. The data will contribute to determining the level of compliance to public health criteria for radon and to develop a monitoring program based on the identified risks.Methods.This study assesses the concentration of radon in 22 drinking water wells in the parish of St. Catherine, Jamaica. Samples were collected for radon, with 12 other measurements gathered including pH, conductivity, TDS, alkalinity, hardness, phosphates, nitrates, chloride, sulfates, turbidity, well depth and geological features. The data were analyzed for compliance to international limits and association with geological and other parameters.Results.The average radon level was 18 Bq/L ± 2 Bq/L and varied from a low of 11 Bq/L ± 1 Bq/L to a high of 41 Bq/L ± 1 Bq/L. There was a positive correlation between radon levels and both alkalinity and turbidity. No relationship of any significance, however, was identified with the other physicochemical parameters. All the study results fell within the European Union (EU) limit of 100 Bq/L, and well within the United States Environmental Protection Agency (USEPA) limit of 147 Bq/L. Most of the wells in this parish have radon levels exceeding the proposed USEPA limit of 11 Bq/L. The proposed limits are intended to support radon mitigation programs to manage radon in air. No limits are provided in the newest edition of the World Health Organization's (WHO) Guidelines for Safe Drinking Water Quality.Conclusions.Most wells in the study area met existing international limits. Almost all, however, did not meet the proposed USEPA limit for locations without radon mitigation programs. This indicates the need to establish national screening levels for radon, consistent with WHO and USEPA recommendations.

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Section: Discussionmentioning

confidence: 92%

Assessment of Radon Levels in Drinking Water Wells in St. Catherine, Jamaica

Smith

Voutchkov

2017

Journal of Health and Pollution

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“…This may be due to the fact that fractures with higher permeability/porosity can increase bedrock surface area in fault zones, allowing 222 Rn to dissolve from the bedrock into groundwater through active water-rock interactions. Previous studies have reported that fractures can enhance emanation surfaces, allowing 222 Rn to escape from rocks via α-recoil [32,33]. The relatively lower 222 Rn concentration in groundwater close to Faults B and C may be due to the different lithology (gneiss) of those well locations.…”

Section: Spatial Distributions Of 222 Rn and Umentioning

confidence: 95%

Factors Controlling the Spatial and Temporal Variability in Groundwater 222Rn and U Levels

Cho

Koo

Cho

et al. 2019

Water

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Radon (222Rn) and uranium (U) measurements were conducted in 98 groundwater samples in Yongin area, Korea to identify the factors controlling their levels and spatial distributions. Groundwater samples were obtained from the different depth of wells used for drinking water and irrigation. 222Rn and U concentrations were measured using a liquid scintillation counter (LSC) equipped with a pulse-shape analyzer and inductively coupled plasma mass spectrometers (ICP-MS), respectively. Large variations were observed in groundwater concentrations of 222Rn and U, ranging between 0.6 ± 0.1–673.7 ± 8.7 Bq L−1 and 0.02–117.00 µg L−1, respectively. Correlation analysis revealed no significant relationship between field parameters (temperature, electrical conductivity, pH, and dissolved oxygen) and 222Rn or U concentrations. The fact that 222Rn and U concentrations were higher in granite areas than gneiss areas suggests that lithology plays a significant role in controlling the levels and spatial distributions of the two radionuclides. Furthermore, groundwater 222Rn and U behaviors have been affected by the existence of fault and well depth. Especially, the temporal monitoring of 222Rn suggests that 222Rn concentrations in the shallow groundwater may be controlled by variation in rainfall and artificial effects such as water curtain cultivation conducted in the winter season in this study area.

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“…Данный вопрос требует отдельного целенаправленного исследования, так как мнения специалистов о характере подобной зависимости расходятся. Это позволяет на данном этапе работ в качестве основной причины выяв-ленной закономерности рассматривать изменение температуры воды, тем более что для некоторых регионов обратная связь между параметрами Q и T установлена достаточно определенно [Erdogan et al, 2013;Schubert et al, 2012]. Поскольку радиоак-тивный газ лучше растворяется в водах с более низкой температурой, повышение радиоактивно-сти наблюдается у побережья Байкала, где под влиянием озера происходит охлаждение подзем-ных вод.…”

Section: структурный фактор контроля подземных вод с повышенным содерunclassified

Role of the Structural Factor in the Distribution of High-Radon Groundwater in the Southwestern Flank of the South Baikal Rift Basin

Семинский¹,

Бурзунова²,

Семинский³

et al. 2017

Geodin. tektonofiz.

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This article discusses the distribution patterns of high-radon groundwater at the southwestern shore of Lake Baikal. This region is a flank of the South Baikal rift basin, characterized by high geodynamic activity and complex fault patterns, without any special geochemical conditions with regard to the content of uranium in the rocks. Based on our observations and measurements, we consolidated the first massive database on radon volume activity (Q) in a variety of local water sources. In the Kultuk-Vydrino area, the Q values vary from zero to 81.1 Bq/l, according to the analysis of the water samples from 93 springs, lakes, small streams, wells, and drilled holes. The highest concentrations of radon are discovered in the groundwater samples. Such values are unevenly scattered across the study area. The chain of the maximum Q values trends northwestwards along the Lake Baikal shore. This distribution pattern of radon, as well as the locations of individual water sources with Q>15 Bq/l are predetermined by the structural factor. The paragenetic analysis of faults and joints in the Kultuk-Vydrino area shows that this factor includes both the structure and stages in the development of the regional largest Main Sayan fault zone (the southwestern flank of the South Baikal basin is a segment of this zone). The water sources with increased concentrations of radon are located in zones with a high density of the 2 nd order faults, especially on sites wherein the NW-striking faults cross the transverse faults that have experienced repeated activation. Temperature T is an additional factor influencing the degree of radioactivity in water. A relationship between T and Q is reverse. Water sources with Q>15 Bq/l associated with the 2 nd order fault zones may occur also due to a locally lower temperature of groundwater. Our study gives evidence that the southwestern coast of Lake Baikal is promising for finding high-radon water sources. Using such water in balneology can become a valuable contribution to the tourism and recreational potential of the region. This prospect is especially important for the town of Baikalsk that is now developing without its township-forming enterprise: the notorious pulp-and-paper mill has been completely shut down.

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Determination of radon concentration levels in well water in Konya, Turkey

Cited by 26 publications

References 15 publications

Assessment of Radon Levels in Drinking Water Wells in St. Catherine, Jamaica

Assessment of Radon Levels in Drinking Water Wells in St. Catherine, Jamaica

Factors Controlling the Spatial and Temporal Variability in Groundwater 222Rn and U Levels

Role of the Structural Factor in the Distribution of High-Radon Groundwater in the Southwestern Flank of the South Baikal Rift Basin

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