Interpretation of data on pesticide residues in surface water in France, by grouping data within homogeneous spatial units
In France, the SOeS⋆ manages a database which contains more than eight million analyses of pesticide concentrations in surface water. In order to interpret these analyses better, we tested methods based on a geographic grouping of data within homogeneous units, the hydr...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2011-02-01
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| Series: | Knowledge and Management of Aquatic Ecosystems |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1051/kmae/2010037 |
| _version_ | 1818757084238315520 |
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| author | Gauroy C. Carluer N. |
| author_facet | Gauroy C. Carluer N. |
| author_sort | Gauroy C. |
| collection | DOAJ |
| description | In France, the SOeS⋆ manages a database which
contains more than eight million analyses of pesticide concentrations in surface water. In
order to interpret these analyses better, we tested methods based on a geographic grouping
of data within homogeneous units, the hydro-ecoregions (HER). Our objectives were to find
suitable descriptors and methods, and test them in order to describe the contamination and
highlight explanatory factors. In the case of the examples studied, calculating the 90th
percentile of analysis results for each 15-day period allowed us to identify the seasonal
and inter-annual contamination patterns associated with the analytes. We observed
differences between regions and years, which are consistent with the agricultural use of
pesticides (application period and registration). Moreover, differences in contamination
levels between areas and products can be partly explained by the type of crop on which the
products are applied. |
| first_indexed | 2024-12-18T06:05:19Z |
| format | Article |
| id | doaj.art-d3de9b3178f040f2a0ec824a19032ed7 |
| institution | Directory Open Access Journal |
| issn | 1961-9502 |
| language | English |
| last_indexed | 2024-12-18T06:05:19Z |
| publishDate | 2011-02-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Knowledge and Management of Aquatic Ecosystems |
| spelling | doaj.art-d3de9b3178f040f2a0ec824a19032ed72022-12-21T21:18:34ZengEDP SciencesKnowledge and Management of Aquatic Ecosystems1961-95022011-02-0104000410.1051/kmae/2010037kmae100036Interpretation of data on pesticide residues in surface water in France, by grouping data within homogeneous spatial unitsGauroy C.0Carluer N.1Cemagref, Freshwater systems, ecology and pollution research unitCemagref, Freshwater systems, ecology and pollution research unitIn France, the SOeS⋆ manages a database which contains more than eight million analyses of pesticide concentrations in surface water. In order to interpret these analyses better, we tested methods based on a geographic grouping of data within homogeneous units, the hydro-ecoregions (HER). Our objectives were to find suitable descriptors and methods, and test them in order to describe the contamination and highlight explanatory factors. In the case of the examples studied, calculating the 90th percentile of analysis results for each 15-day period allowed us to identify the seasonal and inter-annual contamination patterns associated with the analytes. We observed differences between regions and years, which are consistent with the agricultural use of pesticides (application period and registration). Moreover, differences in contamination levels between areas and products can be partly explained by the type of crop on which the products are applied.http://dx.doi.org/10.1051/kmae/2010037water contaminationpesticidestreamdata interpretationanalysis |
| spellingShingle | Gauroy C. Carluer N. Interpretation of data on pesticide residues in surface water in France, by grouping data within homogeneous spatial units Knowledge and Management of Aquatic Ecosystems water contamination pesticide stream data interpretation analysis |
| title | Interpretation of data on pesticide residues in surface water
in France, by grouping data within homogeneous spatial units |
| title_full | Interpretation of data on pesticide residues in surface water
in France, by grouping data within homogeneous spatial units |
| title_fullStr | Interpretation of data on pesticide residues in surface water
in France, by grouping data within homogeneous spatial units |
| title_full_unstemmed | Interpretation of data on pesticide residues in surface water
in France, by grouping data within homogeneous spatial units |
| title_short | Interpretation of data on pesticide residues in surface water
in France, by grouping data within homogeneous spatial units |
| title_sort | interpretation of data on pesticide residues in surface water in france by grouping data within homogeneous spatial units |
| topic | water contamination pesticide stream data interpretation analysis |
| url | http://dx.doi.org/10.1051/kmae/2010037 |
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