ID:
publications-2916
Type:
Other
Year:
2021
Authors:
Senthilmurugan Subbiah; Chandan Mahanta; Sandip S. Sathe
Title:
Hydrogeochemistry of intermittent alluvial aquifers controlling arsenic and fluoride contamination for corresponding influencing health risk assessment
Venue/Journal:
Research Square
DOI:
10.21203/rs.3.rs-214557/v1
Research type:
AI & Machine Learning
Water System:
Uncategorized
Technical Focus:
Abstract:
Abstract Identification and management of safe groundwater supply in a high As and F− contaminated region is a major concern facing most of the developing countries worldwide. This study provides a comprehensive hydrogeochemistry result for a complex hydro-stratigraphy soil aquifer, which is bound between the Shillong plateau and Himalayan ranges in the North-Eastern region of India. In this study, distinct contaminated regions of As and F− were identified in rainy (n = 94) and winter (n = 50) seasons groundwater samples. The maximum dissolved concentration of As was measured as 71 µg L− 1 in rainy and 211 µg L− 1 in winter season groundwater samples, whereas maximum F− concentration was measured as 7 mg L− 1 in rainy and 6 mg L− 1 in winter season groundwater samples. Identified minerals saturation condition, weathering, and dissolution results of hydrogeochemistry were well corroborated with the Bivariate plot, Gibbs and Pourbaix diagrams. Results of health risk assessment showed that population of age below 18 years old are prone to carcinogenic diseases and symptoms of non-carcinogenic health risk due to daily consumption of As contaminated groundwater. Children of age below 18 years old, in total 39% (i.e. 6834) and 64% (i.e. 13937) were found more susceptible to arsenic ingestion effect. The male population was found prone to As cancer risk than the female population. Overall, this study provides a critical result about the cause of high As and F− concentration in groundwater and health risk assessment, it provides a prime concern matter for the young generation which is at higher risk of As cancer.
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820881
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