Sources and behavior of perchlorate ions (ClO4−) in chalk aquifer of Champagne-Ardenne, France: preliminary results
| Autor: | Benjamin Cancès, Pierre Pannet, Jessy Jaunat, Vincent Barbin, Xavier Morvan, Nicolas Devau, Daniel Hube, Feifei Cao, Alain Devos, Patrick Ollivier |
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| Rok vydání: | 2018 |
| Předmět: |
geography
geography.geographical_feature_category Groundwater sampling Aquifer General Medicine 010501 environmental sciences 010502 geochemistry & geophysics 01 natural sciences 6. Clean water First world war Perchlorate chemistry.chemical_compound Human health chemistry Environmental chemistry Environmental science Surface water Groundwater 0105 earth and related environmental sciences |
| Zdroj: | Proceedings of the International Association of Hydrological Sciences. 379:113-117 |
| ISSN: | 2199-899X |
| DOI: | 10.5194/piahs-379-113-2018 |
| Popis: | Perchlorate ( ClO 4 - ) is an environmental contaminant of growing concern due to its potential human health effects and widespread occurrence in surface water and groundwater. Analyses carried out in France have highlighted the presence of ClO 4 - in drinking water of Champagne-Ardenne (NW of France), with two potential sources suspected: a military source related to the First World War and an agricultural source related to the past use of Chilean nitrates. To determine the sources of ClO 4 - in groundwater, major and trace elements, 2H and 18O , ClO 3 - and ClO 4 - ions and a list of 39 explosives were analyzed from 35 surface water and groundwater sampling points in the east of the city of Reims. ClO 4 - ions were found in almost all sampling points (32 out of 35) with a max value of 33 µg L−1 . ClO 4 - concentrations were highest in groundwater ranging from 0.7 to 33 µg L−1 (average value of about 6.2 µg L−1 ) against from 0.5 to 10.2 µg L−1 in surface water (average value of about 2.7 µg L−1 ). Most of the water samples showing high ClO 4 - levels ( > 4 µg L−1 ) were collected near a military camp, where huge quantities of ammunitions have been used, stored and destroyed during and after the First World War. |
| Databáze: | OpenAIRE |
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