Percentage of reported monitoring sites with pesticides exceeding thresholds in a) surface  waters and b) groundwater in Europe weighted by country area

Figure Created 18 Nov 2021 Published 25 Jan 2022 Last modified 07 Dec 2022
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The figures show the percentage of monitoring sites with exceedance of effect thresholds or quality standards, set by European or national regulatory standards, and weighted by country area to reduce the impact of uneven data reporting. For surface waters, EU environmental quality standards and (in the absence of those) national regulatory standards were used, reflecting the lowest ecotoxicologically-based effect threshold. Effect thresholds were identified for 116 out of 237 pesticides (49%). The exceedances included here refer to those 116 pesticides. For groundwater, the Groundwater Directive quality standard of 0.1µg/l was used to identify exceedance. Twelve non-relevant metabolites (nrM) were excluded from the assessment. Further information on the methodology used to to develop the indicator can found in the following technical paper:

European data



Geographic coverage

Temporal coverage


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Filed under: water, pesticides
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