All water data sources
FreeResearch InstituteGlobal
Surface Water Quality Dataset 1940-2023
Comprehensive historical water quality data
nature.com
At a glance
- Region
- Global
- Coverage
- 83-year historical dataset
- Access
- Free
- Category
- Research Institute
- Last updated
- 2025
What's inside
- Water Quality
- Long-term Trends
- Machine Learning Ready
What you can do with it
Typical work that data of this type supports.
- 01
Hotspots and trends
Find where contamination is high and whether it is getting worse.
Because it has: Water Quality
- 02
Compliance checks
Compare samples against drinking water and discharge standards.
- 03
Storage tracking
Follow storage and releases through the season.
Where AI adds value
Ideas for machine learning and AI agents built on this kind of data.
- 01
Risk maps
Predict contamination where no samples exist, from geology, land use and climate.
- 02
Anomaly alerts
Catch sudden spikes in sensor or lab data automatically.
- 03
Storage from space
Estimate volume from satellite water area and altimetry.
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