Hydrionis for government and regulators
A single evidence base that crosses the boundaries between publishers, with the reporting basis of each figure preserved rather than flattened into a comparison that does not hold.
What you can answer here
How does our jurisdiction compare, honestly?
Comparisons that state their own limits: reporting years, definitions and collection bases differ between countries, and Hydrionis records those differences alongside the figures.
Where it stops: Hydrionis will not rank countries on a metric whose comparability notes say the ranking would be misleading.
Relevant datasets
| Dataset | Observations | Coverage | Licence |
|---|---|---|---|
| England River Water Quality Dataset | 252,857 | 2000–2025 | Commercial use permitted |
| Global Water Resources and Withdrawal Dataset | 50,363 | 1961–2022 | Commercial use permitted |
Key measures
Full dictionary →| Measure | Definition | Unit |
|---|---|---|
| Water stress | Freshwater withdrawal as a percentage of available renewable freshwater resources, after accounting for environmental flow requirements. | % |
What Hydrionis does not hold for you
Access
Everything referenced here is available through the JSON API and, where the source licence permits redistribution, as CSV extracts. Field definitions are in the data dictionary.
For bulk extracts, higher-volume API access, commercial licensing or bespoke work, see data enquiries.