1. Level of water quality as described by a set of measured chemical parameters
2. What percentage of water is used?
3. How well available is water and how effectively is water used?
4. water quality ladder
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Sources:
- https://openknowledge.worldbank.org/bitstream/handle/10986/32245/9781464814594.pdf?sequence=8 page xii and https://openknowledge.worldbank.org/bitstream/handle/10986/32245/9781464814594.pdf?sequence=3&isAllowed=y
- https://www.nature.com/articles/s41545-019-0039-9
- https://ourworldindata.org/grapher/per-capita-renewable-freshwater-resources
https://ourworldindata.org/grapher/water-per-tonne-food - https://ourworldindata.org/water-access