pm2-5

Self-contained ESPHome air quality monitor for Home Assistant — CO2, temp/humidity, VOC/NOx, particulates, light, with onboard display and fan.

Hybrid PM2.5 prediction using LightGBM, Quantum Support Vector Regression (QSVR), Quantum Bagging, and Ridge Meta-Learning on normalized air-quality data.

IQAir AirVisual — independent third-party profile of a public API surface, by API Evangelist. IQAir AirVisual provides a real-time air quality REST API delivering PM2.5, PM10, AQI, weather data, and pollution forecasts for cities and GPS coordinates worldwide. The API aggregates data from over 80,000 ground-based sensors, satellite sources, and reg