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3.1 Quantitative data sources

3.1.1. Waterbase - Water quality

Waterbase – Water Quality [1] is a database containing water quality data in rivers, lakes and groundwater. The basic records reported into the database are disaggregated water quality data on the observed values, representing one sampling at specific monitoring site and day for a specific parameter. As of 2015, reporting disaggregated records is preferred, while in the preceding period, more data was reported as annual records – i.e. annual statistics for each monitoring site and substance. The updated versions of the database are published annually, with the version used in this report covering the data up to 2017.

The pesticide data of Waterbase – Water Quality have been reported by 34 countries of Europe, representing the monitoring network of Member States of the EU as well as other EIONET reporting countries.

[1] The version of 2019, published on April 2019 and used for this report, is available at https://www.eea.europa.eu/data-and-maps/data/waterbase-water-quality-2.