Radioactivity in surface soil and water around the Valliyaru river

Q1 Environmental Science

Environmental Nanotechnology, Monitoring and Management Pub Date : 2025-04-10 DOI:10.1016/j.enmm.2025.101068

Vinod Kumar K.P. , Kumar A. , Karthik B.

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Abstract

Gross alpha and beta radiations for the samples of soil and water collected from the Valliyaru river in southern India were determined. Alpha radiation counting system, RC 605A for measuring gross alpha values was employed that revealed a maximum value of 0.843 Bq/L and 12491 Bq/Kg in water and soil respectively. Beta counting system, BCS 36A had given a maximum value of 0.32 Bq/L and 58594 Bq/Kg for water and soil respectively. Gamma determination was detected by IdentiFINDER-X that showed a maximum value of 3.78 µSv/h. These high values pertaining to radiations were prevailing only at Kadiapattanam village in Tamil Nadu, India, where the river confluences with the sea. Cluster analysis and the hierarchical dendrogram identify two distinct groups of radioactivity within the dataset: one near the sea and the other along various sites along the course of the Valliyaru River. Heat map analysis revealed that radioactivity of water and soil are correlated positively. One-way Anova results reflected that the radioactivity values are statistically different for soil and water. Annual effective doses (AED) and excess lifetime cancer risk (ELCR) were also computed that reflected safe levels at sites other than Kadiapattanam. The investigation revealed that upstream sites are within safe limits, whereas at the place of confluence with the sea, radioactivity values exceed beyond permissible limits.

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Valliyaru河周围表层土壤和水的放射性

测定了从印度南部瓦利亚鲁河采集的土壤和水的总辐射和辐射。α辐射计数系统RC 605A用于测量总α值，其在水和土壤中的最大值分别为0.843 Bq/L和12491 Bq/Kg。在Beta计数系统中，BCS 36A对水和土壤的最大值分别为0.32 Bq/L和58594 Bq/Kg。用IdentiFINDER-X进行γ测定，其最大值为3.78µSv/h。这些与辐射有关的高值仅在印度泰米尔纳德邦的卡迪亚帕塔纳姆村普遍存在，该村是河流与海洋汇合的地方。聚类分析和分层树状图在数据集中确定了两组不同的放射性：一组靠近海洋，另一组沿着瓦利亚鲁河沿岸的不同地点。热图分析表明，水和土壤的放射性呈正相关。单因素方差分析结果表明，土壤和水的放射性值有统计学差异。还计算了年有效剂量（AED）和超额终身癌症风险（ELCR），反映了除Kadiapattanam外其他部位的安全水平。调查结果显示，上游地点在安全范围内，而入海地点的放射性值超过允许范围。

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来源期刊

Environmental Nanotechnology, Monitoring and Management Environmental Science-Water Science and Technology

CiteScore

13.00

自引率

0.00%

发文量

132

审稿时长

48 days

期刊介绍： Environmental Nanotechnology, Monitoring and Management is a journal devoted to the publication of peer reviewed original research on environmental nanotechnologies, monitoring studies and management for water, soil , waste and human health samples. Critical review articles, short communications and scientific policy briefs are also welcome. The journal will include all environmental matrices except air. Nanomaterials were suggested as efficient cost-effective and environmental friendly alternative to existing treatment materials, from the standpoints of both resource conservation and environmental remediation. The journal aims to receive papers in the field of nanotechnology covering; Developments of new nanosorbents for: •Groundwater, drinking water and wastewater treatment •Remediation of contaminated sites •Assessment of novel nanotechnologies including sustainability and life cycle implications Monitoring and Management papers should cover the fields of: •Novel analytical methods applied to environmental and health samples •Fate and transport of pollutants in the environment •Case studies covering environmental monitoring and public health •Water and soil prevention and legislation •Industrial and hazardous waste- legislation, characterisation, management practices, minimization, treatment and disposal •Environmental management and remediation