aqi-us
Air Quality Index (AQI) calculation module according to USEPA AQI breakpoints.
airnow
npm module for airnowapi.org webservices API.
aqi-calculator
aqi-calculator is an NPM package that allows you to calculate Air Quality Index (AQI) with the help of pollutant concentrations ranging from PM 2.5, PM 10, SO2, NOX, O3 and CO.