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Water quality indicators

Get an overview about the water quality of water bodies worldwide by means of water quality indicators for the SDG 6.3.2 core parameters dissolved oxygen, nitrogen, phosphorus and pH. The indicators have been calculated at station, basin and country level and can be accessed in an interactive dashboard or as separate time-animated maps.

All data is derived from the GEMStat database and the classification and thresholds for each indicator have been derived from UNEP (2017). Further details on the calculation are given in the respective dashboard and maps.


UNEP 2017. A Framework for Freshwater Ecosystem Management. Volume 2: Technical guide for classification and target-setting.

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