Posted in Arduino Hacks Tagged air pollution, air quality, arduino, nova pm sensor, pm10, pm2.5, pollution ← Pi-Based Spectrometer Puts The Complexity In The Software ...

The PA-II is purpleair.com ’s second-generation low-cost PM2.5 sensor, and employs a dual laser beam that counts particles based on their reflectivity.

In May, Spangrude’s sensor captured an average of 13 micrograms per cubic meters (µg/m3) of PM2.5, which is considered to be “good, almost moderate.” ...