PM2.5 Open Data Portal
HTTPS CORS ? Free
Open low-cost PM2.5 sensor data
API Endpoint
https://pm25.lass-net.org/#apisMore Environment APIs
US EPA air quality data and forecasts
HTTPS CORS apiKey
Daily Forecast pollen conditions data for a specific location
HTTPS CORS ? apiKey
API to calculate carbon (C02) emissions estimates for common C02 emitting activities
HTTPS CORS apiKey