Isotopic Tracing of Perchlorate Sources in the Environment
Perchlorate (ClO4−) is an emerging persistent pollutant that is ubiquitous in the environment at trace concentrations. Perchlorate ingestion poses a risk to human health because it interferes with thyroidal hormone production. The identification of perchlorate sources in groundwater is a primary con...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
2021-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2021/9978489 |
| _version_ | 1798031624871346176 |
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| author | Mengnan Zhang Xiaoqian Li Xuxue Cheng Xinfeng Wang Mian Song Xiaoyan Wang Xuemei Ma |
| author_facet | Mengnan Zhang Xiaoqian Li Xuxue Cheng Xinfeng Wang Mian Song Xiaoyan Wang Xuemei Ma |
| author_sort | Mengnan Zhang |
| collection | DOAJ |
| description | Perchlorate (ClO4−) is an emerging persistent pollutant that is ubiquitous in the environment at trace concentrations. Perchlorate ingestion poses a risk to human health because it interferes with thyroidal hormone production. The identification of perchlorate sources in groundwater is a primary concern. Chlorine and multi-oxygen isotopic tracing of perchlorate (δ37Cl, 36Cl/Cl, δ18O, and Δ17O) can provide a unique tool for identifying the origin and transport of perchlorate in groundwater. Along with the kinetic fractionation of chlorine and oxygen isotopes, the Δ17O value, 36Cl/Cl ratio, and ε18O/ε37Cl (the fractionation coefficient of oxygen and chlorine isotopes) are constant, potentially indicating the biodegradation of perchlorate, without disguising its source information. Therefore, comprehensive characterization of stable chlorine and poly-oxygen isotopes is expected to provide direct evidence for identifying the source of perchlorate in groundwater. However, further studies are needed to increase the amount of isotopic data of different perchlorate sources, to make the end-member model available to broader regions. It is critically important to understand the range of values and differences of isotopes among natural perchlorate sources and the perchlorate formation mechanisms. |
| first_indexed | 2024-04-11T19:59:28Z |
| format | Article |
| id | doaj.art-bc9613cd4d974a24868146b8196b6ce3 |
| institution | Directory Open Access Journal |
| issn | 2090-9063 2090-9071 |
| language | English |
| last_indexed | 2024-04-11T19:59:28Z |
| publishDate | 2021-01-01 |
| publisher | Hindawi Limited |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj.art-bc9613cd4d974a24868146b8196b6ce32022-12-22T04:05:41ZengHindawi LimitedJournal of Chemistry2090-90632090-90712021-01-01202110.1155/2021/99784899978489Isotopic Tracing of Perchlorate Sources in the EnvironmentMengnan Zhang0Xiaoqian Li1Xuxue Cheng2Xinfeng Wang3Mian Song4Xiaoyan Wang5Xuemei Ma6Center for Hydrogeology and Environmental Geology, CGS, Baoding 071051, ChinaChina University of Geosciences, Wuhan 430074, ChinaCenter for Hydrogeology and Environmental Geology, CGS, Baoding 071051, ChinaCenter for Hydrogeology and Environmental Geology, CGS, Baoding 071051, ChinaCenter for Hydrogeology and Environmental Geology, CGS, Baoding 071051, ChinaCenter for Hydrogeology and Environmental Geology, CGS, Baoding 071051, ChinaCenter for Hydrogeology and Environmental Geology, CGS, Baoding 071051, ChinaPerchlorate (ClO4−) is an emerging persistent pollutant that is ubiquitous in the environment at trace concentrations. Perchlorate ingestion poses a risk to human health because it interferes with thyroidal hormone production. The identification of perchlorate sources in groundwater is a primary concern. Chlorine and multi-oxygen isotopic tracing of perchlorate (δ37Cl, 36Cl/Cl, δ18O, and Δ17O) can provide a unique tool for identifying the origin and transport of perchlorate in groundwater. Along with the kinetic fractionation of chlorine and oxygen isotopes, the Δ17O value, 36Cl/Cl ratio, and ε18O/ε37Cl (the fractionation coefficient of oxygen and chlorine isotopes) are constant, potentially indicating the biodegradation of perchlorate, without disguising its source information. Therefore, comprehensive characterization of stable chlorine and poly-oxygen isotopes is expected to provide direct evidence for identifying the source of perchlorate in groundwater. However, further studies are needed to increase the amount of isotopic data of different perchlorate sources, to make the end-member model available to broader regions. It is critically important to understand the range of values and differences of isotopes among natural perchlorate sources and the perchlorate formation mechanisms.http://dx.doi.org/10.1155/2021/9978489 |
| spellingShingle | Mengnan Zhang Xiaoqian Li Xuxue Cheng Xinfeng Wang Mian Song Xiaoyan Wang Xuemei Ma Isotopic Tracing of Perchlorate Sources in the Environment Journal of Chemistry |
| title | Isotopic Tracing of Perchlorate Sources in the Environment |
| title_full | Isotopic Tracing of Perchlorate Sources in the Environment |
| title_fullStr | Isotopic Tracing of Perchlorate Sources in the Environment |
| title_full_unstemmed | Isotopic Tracing of Perchlorate Sources in the Environment |
| title_short | Isotopic Tracing of Perchlorate Sources in the Environment |
| title_sort | isotopic tracing of perchlorate sources in the environment |
| url | http://dx.doi.org/10.1155/2021/9978489 |
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