table_header: Date: description: Date of the measurement units: YYYY-MM-DD rename_as: date Time: description: Time of the measurement units: HH:MM:SS rename_as: time NO: description: NO concentration units: ppb, ppm rename_as: no_concentration NO2: description: NO2 concentration units: ppb, ppm rename_as: no2_concentration NOx: description: NOx concentration units: ppb, ppm rename_as: nox_concentration