EPA CyAN Cyanobacteria Assessment Network
Multi-agency satellite monitoring of cyanobacterial blooms in 2,300+ U.S. lakes using Sentinel-3 OLCI with daily and 7-day composites from 2016 to present. Includes web app and API
epa.gov
At a glance
- Region
- United States (North America)
- Coverage
- 2,300+ U.S. lakes and reservoirs
- Access
- Free
- Category
- Government
What's inside
- Cyanobacteria
- Harmful Algal Blooms
- Water Quality
- Lake Monitoring
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: Cyanobacteria
- 02
Compliance checks
Compare samples against drinking water and discharge standards.
- 03
Storage tracking
Follow storage and releases through the season.
Because it has: Lake Monitoring
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.
Machine access and documentation
Open API
EPA CyAN data API (cyan.epa.gov)
Licence: US Government public domain
Listed in our registry of open water APIs, which WaterDataGPT can query live.
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