Data Sources & Attribution
Complete list of all data sources, APIs, and databases used by EnvioGrid to provide hyperlocal environmental and lifestyle data.
Last updated: May 2025
Primary Data Sources
| Source | Data Type | License |
|---|---|---|
| Open-Meteo Air Quality API | AQI, PM2.5, PM10, NO₂, O₃ | Open Data |
| Open-Meteo Weather API | Temperature, humidity, wind speed, forecasts | Open Data |
| OpenAQ | Supplemental air quality data | CC BY 4.0 |
| OpenStreetMap (Overpass API) | POI locations, amenities, emergency services | ODbL |
| GeoNames | ZIP code boundaries, geographic coordinates | CC BY 4.0 |
| US Census Bureau | ZIP code tabulation areas (ZCTAs) | Public Domain |
Attribution
EnvioGrid uses data from the following sources. We are grateful for their contributions to open data:
- OpenStreetMap contributors — map data © OpenStreetMap contributors
- Open-Meteo — weather and air quality data
- OpenAQ — global air quality data
- GeoNames — geographic database
- US Census Bureau — ZIP code boundaries
Data Processing
All data is processed deterministically using Node.js. No AI or machine learning is used in data processing or content generation. All algorithms are open source and available for review.