Library

NOTE: Different standards use different units for calculating AQI, use the appropriate units to get correct results. Examples for getting the units for each standards as well as unit conversion is avaiable (examples soon!)

Convert a pollutant to its IAQI (Intermediate Air Quality Index):

import aqicalc as aqi
myaqi = aqi.to_iaqi(aqi.POLLUTANT_PM25, '12', algo=aqi.ALGO_EPA)

Get an AQI out of several pollutant concentrations, default algorithm is EPA:

import aqicalc as aqi
myaqi = aqi.to_aqi([
    (aqi.POLLUTANT_PM25, '12'),
    (aqi.POLLUTANT_PM10, '24'),
    (aqi.POLLUTANT_O3_8H, '0.087')
])

Convert an IAQI to its pollutant concentration:

import aqicalc as aqi
mycc = aqi.to_cc(aqi.POLLUTANT_PM25, '22', algo=aqi.ALGO_EPA)

Command line

List supported algorithms and pollutants:

$ aqi -l
aqi.algos.epa: pm10 (µg/m³), o3_8h (ppm), co_8h (ppm), no2_1h (ppb), o3_1h (ppm), so2_1h (ppb), pm25 (µg/m³)
aqi.algos.mep: no2_24h (µg/m³), so2_24h (µg/m³), no2_1h (µg/m³), pm10 (µg/m³), o3_1h (µg/m³), o3_8h (µg/m³), so2_1h (µg/m³), co_1h (mg/m³), pm25 (µg/m³), co_24h (mg/m³)

Convert PM2.5 to IAQI using EPA algorithm:

$ aqi aqi.algos.epa pm25:12
50

Convert PM2.5 to IAQI using EPA algorithm (full length):

$ aqi -c aqi aqi.algos.epa pm25:12
50

Convert pollutants concentrations to AQI using EPA algorithm:

$ aqi aqi.algos.epa pm25:40.9 o3_8h:0.077 co_1h:8.4
114

Convert pollutants concentrations to AQI using EPA algorithm, display IAQIs:

$ aqi -v aqi.algos.epa pm25:40.9 o3_8h:0.077 co_1h:8.4
pm25:102 o3_8h:104 co_1h:90
114

Convert PM2.5 IAQI to concentration using EPA algorithm:

$ aqi -c cc aqi.algos.epa pm25:39
pm2.5:9.3