Metrics dictionary
Metric names
These v2 metric names are unique across individual measurements and hourly/daily aggregations. That was not the case for the older v1 API. If you have older API code, watch out for changed metric names
Individual Samples
outputFrequency
minute
| metric | description |
|---|---|
| atmPressureIndividual | Atmospheric pressure, Individual sample (atm) |
| bcAllSourcesIndividual | Black carbon All sources mass concentration, Individual sample (ng/m³) |
| bcBiomassIndividual | Black carbon Biomass mass concentration, Individual sample (ng/m³) |
| bcFossilFuelIndividual | Black carbon Fossil fuel mass concentration, Individual sample (ng/m³) |
| bcSpectralBIndividual | Black carbon Spectral B mass concentration, Individual sample (ng/m³) |
| bcSpectralGIndividual | Black carbon Spectral G mass concentration, Individual sample (ng/m³) |
| bcSpectralIRIndividual | Black carbon Spectral IR mass concentration, Individual sample (ng/m³) |
| bcSpectralRIndividual | Black carbon Spectral R mass concentration, Individual sample (ng/m³) |
| bcSpectralUVIndividual | Black carbon Spectral UV mass concentration, Individual sample (ng/m³) |
| no2ConcIndividual | NO2 concentration, Individual sample (ppb) |
| o3ConcIndividual | Ozone, Individual sample (ppb) |
| pm10ConcMassIndividual | PM10 mass concentration, Individual sample (μg/m³) |
| pm10ConcNumIndividual | PM10 number concentration, Individual sample (#/cm³) |
| pm1ConcMassIndividual | PM1 mass concentration, Individual sample (μg/m³) |
| pm1ConcNumIndividual | PM1 number concentration, Individual sample (#/cm³) |
| pm2_5ConcMassIndividual | PM2.5 mass concentration, Individual sample (μg/m³) |
| pm2_5ConcNumIndividual | PM2.5 number concentration, Individual sample (#/cm³) |
| relHumidAmbientIndividual | Relative humidity ambient, Individual sample (%) |
| relHumidInternalIndividual | Relative humidity internal, Individual sample (%) |
| temperatureAmbientIndividual | Temperature ambient, Individual sample (°C) |
| temperatureInternalIndividual | Temperature internal, Individual sample (°C) |
| windDirectionIndividual | Wind direction, Individual sample (°) |
| windSpeedIndividual | Wind speed, Individual sample (m/sec) |
Hour Aggregations
outputFrequency
hour
| metric | description |
|---|---|
| atmPressure1HourMean | Atmospheric pressure, 1-hour mean (atm) |
| bcAllSources1HourMean | Black carbon All sources mass concentration, 1-hour mean (ng/m³) |
| bcBiomass1HourMean | Black carbon Biomass mass concentration, 1-hour mean (ng/m³) |
| bcFossilFuel1HourMean | Black carbon Fossil fuel mass concentration, 1-hour mean (ng/m³) |
| bcSpectralB1HourMean | Black carbon Spectral B mass concentration, 1-hour mean (ng/m³) |
| bcSpectralG1HourMean | Black carbon Spectral G mass concentration, 1-hour mean (ng/m³) |
| bcSpectralIR1HourMean | Black carbon Spectral IR mass concentration, 1-hour mean (ng/m³) |
| bcSpectralR1HourMean | Black carbon Spectral R mass concentration, 1-hour mean (ng/m³) |
| bcSpectralUV1HourMean | Black carbon Spectral UV mass concentration, 1-hour mean (ng/m³) |
| no2Conc1HourMean | NO2 concentration, 1-hour mean (ppb) |
| no2Conc1HourMeanUsEpaAqi | NO2 concentration, 1-hour mean, UsEpaAqi updated to 2024 standard |
| no2Conc1HourMeanWaDwerAqi | NO2 concentration, 1-hour mean, WaDwerAqi |
| o3Conc1HourMean | Ozone, 1-hour mean (ppb) |
| o3Conc1HourMeanWaDwerAqi | Ozone, 1-hour mean, WaDwerAqi |
| pm10ConcMass1HourMean | PM10 mass concentration, 1-hour mean (μg/m³) |
| pm10ConcMass1HourMeanWaDwerAqi | PM10 mass concentration, 1-hour mean, WaDwerAqi |
| pm10ConcMass24HourRollingMean | PM10 mass concentration, 24-hour rolling mean (μg/m³) |
| pm10ConcNum1HourMean | PM10 number concentration, 1-hour mean (#/cm³) |
| pm10ConcNum24HourRollingMean | PM10 number concentration, 24-hour rolling mean (#/cm³) |
| pm1ConcMass1HourMean | PM1 mass concentration, 1-hour mean (μg/m³) |
| pm1ConcNum1HourMean | PM1 number concentration, 1-hour mean (#/cm³) |
| pm2_5ConcMass1HourMean | PM2.5 mass concentration, 1-hour mean (μg/m³) |
| pm2_5ConcMass1HourMeanWaDwerAqi | PM2.5 mass concentration, 1-hour mean, WaDwerAqi |
| pm2_5ConcMass24HourRollingMean | PM2.5 mass concentration, 24-hour rolling mean (μg/m³) |
| pm2_5ConcMassNowcast | PM2.5 mass concentration, Nowcast (μg/m³) |
| pm2_5ConcMassNowcastUsEpaAqi | PM2.5 mass concentration, Nowcast, UsEpaAqi |
| pm2_5ConcNum1HourMean | PM2.5 number concentration, 1-hour mean (#/cm³) |
| pm2_5ConcNum24HourRollingMean | PM2.5 number concentration, 24-hour rolling mean (#/cm³) |
| relHumidAmbient1HourMean | Relative humidity ambient, 1-hour mean (%) |
| relHumidInternal1HourMean | Relative humidity internal, 1-hour mean (%) |
| temperatureAmbient1HourMean | Temperature ambient, 1-hour mean (°C) |
| temperatureInternal1HourMean | Temperature internal, 1-hour mean (°C) |
| windDirection1HourMean | Wind direction, 1-hour mean (°) |
| windSpeed1HourMean | Wind speed, 1-hour mean (m/sec) |
Day Aggregations
outputFrequency
day
| metric | description |
|---|---|
| atmPressure24HourMean | Atmospheric pressure, 24-hour mean (atm) |
| bcAllSources24HourMean | Black carbon All sources mass concentration, 24-hour mean (ng/m³) |
| bcBiomass24HourMean | Black carbon Biomass mass concentration, 24-hour mean (ng/m³) |
| bcFossilFuel24HourMean | Black carbon Fossil fuel mass concentration, 24-hour mean (ng/m³) |
| bcSpectralB24HourMean | Black carbon Spectral B mass concentration, 24-hour mean (ng/m³) |
| bcSpectralG24HourMean | Black carbon Spectral G mass concentration, 24-hour mean (ng/m³) |
| bcSpectralIR24HourMean | Black carbon Spectral IR mass concentration, 24-hour mean (ng/m³) |
| bcSpectralR24HourMean | Black carbon Spectral R mass concentration, 24-hour mean (ng/m³) |
| bcSpectralUV24HourMean | Black carbon Spectral UV mass concentration, 24-hour mean (ng/m³) |
| no2Conc24HourMean | NO2 concentration, 24-hour mean (ppb) |
| o3Conc24HourMean | Ozone, 24-hour mean (ppb) |
| pm10ConcMass24HourMean | PM10 mass concentration, 24-hour mean (μg/m³) |
| pm10ConcMass24HourMeanUsEpaAqi | PM10 mass concentration, 24-hour mean, UsEpaAqi updated to 2024 standard |
| pm10ConcNum24HourMean | PM10 number concentration, 24-hour mean (#/cm³) |
| pm1ConcMass24HourMean | PM1 mass concentration, 24-hour mean (μg/m³) |
| pm1ConcNum24HourMean | PM1 number concentration, 24-hour mean (#/cm³) |
| pm2_5ConcMass24HourMean | PM2.5 mass concentration, 24-hour mean (μg/m³) |
| pm2_5ConcMass24HourMeanUsEpaAqi | PM2.5 mass concentration, 24-hour mean, UsEpaAqi |
| pm2_5ConcNum24HourMean | PM2.5 number concentration, 24-hour mean (#/cm³) |
| relHumidAmbient24HourMean | Relative humidity ambient, 24-hour mean (%) |
| relHumidInternal24HourMean | Relative humidity internal, 24-hour mean (%) |
| temperatureAmbient24HourMean | Temperature ambient, 24-hour mean (°C) |
| temperatureInternal24HourMean | Temperature internal, 24-hour mean (°C) |
| windDirection24HourMean | Wind direction, 24-hour mean (°) |
| windSpeed24HourMean | Wind speed, 24-hour mean (m/sec) |