Estimation of submarine groundwater discharge using radium mass-balance in Mumbai Harbour Bay, Mumbai, India
Autor: | V. B. Yadav, Vandana Pulhani, Rupal Tripathi, S. K. Jha |
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Rok vydání: | 2018 |
Předmět: |
Health
Toxicology and Mutagenesis chemistry.chemical_element Water exchange 010501 environmental sciences 010403 inorganic & nuclear chemistry 01 natural sciences Analytical Chemistry Radium Radiology Nuclear Medicine and imaging Spectroscopy 0105 earth and related environmental sciences computer.programming_language Hydrology Suspended particles Public Health Environmental and Occupational Health Pollution Submarine groundwater discharge 0104 chemical sciences Nuclear Energy and Engineering Wastewater chemistry Harbour Environmental science Bay computer Groundwater |
Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 319:945-952 |
ISSN: | 1588-2780 0236-5731 |
Popis: | The Mumbai Harbour Bay (MHB), Mumbai, India houses a large number of ports, industrial units and urban settlements thus the groundwater may be highly contaminated. In the present study short lived Ra isotopes (223Ra and 224Ra) input sources (viz. water exchange from Arabian Sea, input from Rivers and wastewater discharge, Diffusion of Ra from bottom sediments and desorption from suspended particles) and pathways of removal (radioactive decay and export during the low tide) were estimated in MHB individually. A mass balance for 223Ra and 224Ra in the bay indicated an imbalance of 53.38% and 71.68% respectively. The imbalance was assigned to contribution from submarine groundwater discharge (SGD) and using the concentration in the shallow groundwater (at 2 m depth) of 223Ra and 224Ra the SGD were estimated. Based on 223Ra and 224Ra, the SGD was estimated and found to be 33.4 × 109 L day−1 and 64.9 × 109 L day−1 respectively. |
Databáze: | OpenAIRE |
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