Low cost air quality sensors “PurpleAir” calibration and inter-calibration dataset in the context of Beirut, Lebanon
PurpleAir sensors are low cost commercially available PM2.5 and PM10 sensors. The data here was used to calibrate a single PurpleAir sensor against a reference MET ONE EBAM PLUS instrument (singlesensor_CalibData.csv) Multiple PurpleAir sensors were also used to intercalibrate the PurpleAir sensors and check for variability between sensors (MultieSensor_IntercalibrationData.csv). All data was collected at the campus of the American University of Beirut. ------------------ SingleSensor_CalibData.csv: Data from low cost optical PM2.5 and PM10 PurpleAir sensors for calibration from date: July 1, 2020 to September 30, 2020. Columns: (A) Time_Beirut: Date and Time (Local Beirut Time) (B) PM2.5 ConHR (ug/m3): PM2.5 hourly concentration reading from MET ONE EBAM PLUS instrument (C) PM10 ConHR (ug/m3): PM10 hourly concentration reading from MET ONE EBAM PLUS instrument (D) meanAB_2_5: PM2.5 reading (ug/m3) of PurpleAir sensor. The value is the average of both channels A and B from the sensor. (E) meanAB_10: PM10 reading (ug/m3) of PurpleAir sensor. The value is the average of both channels A and B from the sensor. ------------------ MultiSensor_IntercalibrationData.csv: Data from multiple PurpleAir sensors for inter-calibration. Date range: June 28, 2020 to July 11, 2020 Columns: (A): Time: Date and Time (B) - (AS): PurpleAir sensor data for PM2.5 and PM10 in units (ug/m3). Each individual sensor is identified by the prefix "S_X" where "X" represents the channel number. Each sensor has 4 columns: PM2.5A, PM2.5B, PM10A, PM10B where 'A' and 'B' represent the individual channels in each sensor.