In this study, radon concentration measurements and chemical analyses of groundwater samples were performed in four sampling locations of Bartın Province of Western Black Sea Region, Turkey. ²²²Rn analysis was carried out in groundwater samples with liquid scintillation counting system in accordance with ASTM D5072 standard. The pH, total hardness, alkalinity and dissolved oxygen parameters of the groundwater samples were also determined. The radon concentrations for the water samples ranged between <3.00 Bq/L–12.03 Bq/L. Thirty eight percentage of the samples slightly exceeded the permissible limit of 11.1 Bq/L specified by USEPA for drinking waters. The annual effective doses of groundwater samples were calculated in the range of 7.41–30.74 μSv/y for ingestion of water (E_w.Ig), and in the range of 7.31–30.31 μSv/y for inhalation of radon released from water (E_w.Ih). The total calculated annual effective doses due to ingestion and inhalation were found to be below the limit value of 100 μSv/y specified by the World Health Organization (WHO). The radioactivity measurement results significantly varied for three sampling points but not for one sampling point on two different measurement dates, which is attributed to the differences in geological structure. The chemical analysis results, except for total hardness in two sampling points, were within the permissible limits specified by international standards.

中文翻译：

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土耳其西部黑海地区某些地区地下水样品的放射性评估

在这项研究中，在土耳其西部黑海地区Bartın省的四个采样地点进行了ra浓度测量和地下水样品的化学分析。根据ASTM D5072标准，使用液体闪烁计数系统对地下水样品进行²²² Rn分析。还确定了地下水样品的pH，总硬度，碱度和溶解氧参数。水样品中的concentrations浓度范围在<3.00 Bq / L–12.03 Bq / L之间。38％的样品略超过了USEPA规定的饮用水允许的11.1 Bq / L限值。计算得出的地下水摄入量的年有效剂量在7.41–30.74μSv/ y的范围内（E _w.Ig），并且在7.31–30.31μSv/ y的范围内，用于吸入从水中释放的_ra（E _w.Ih）。发现由于摄入和吸入引起的总计算年度有效剂量低于世界卫生组织（WHO）规定的极限值100μSv/ y。放射性测量结果在两个不同的测量日期对三个采样点变化很大，但对于一个采样点没有变化，这归因于地质结构的差异。除两个采样点的总硬度外，化学分析结果均在国际标准规定的允许范围内。