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. All data is collected at the campus of the American University of Beirut in Beirut, Lebanon All data is reported on an hourly interval. The purpose of the collected data is twofold: (1) To assess the accuracy of the low-cost PurpleAir sensor against a high-fidelity Met One EBAM-PLUS instrument and (2) to assess the inter-sensor variability between multiple PurpleAir sensors installed at a single location. ------------------ SingleSensor_CalibData.csv: Hourly data from low cost PM2.5 and PM10 PurpleAir sensors and high-fidelity Met One EBAM-PLUS instruments 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: Hourly data from thirteen PurpleAir sensors. 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.PurpleAir传感器（PurpleAir）是一款低成本商用PM2.5与PM10颗粒物传感器。 所有数据采集于黎巴嫩贝鲁特的贝鲁特美国大学（American University of Beirut）校园内。 所有数据均以小时为间隔进行上报。 本次采集数据的目标分为两点：其一，以高精度Met One EBAM-PLUS仪器作为参照，评估低成本PurpleAir传感器的测量准确性；其二，评估同一安装点位下多台PurpleAir传感器之间的传感器间变异性。 ------------------ SingleSensor_CalibData.csv： 该文件包含2020年7月1日至2020年9月30日期间，低成本PM2.5、PM10型PurpleAir传感器与高精度Met One EBAM-PLUS仪器的小时级观测数据。各字段说明如下： (A) Time_Beirut：贝鲁特本地时间的日期与时间 (B) PM2.5 ConHR (μg/m³)：Met One EBAM PLUS仪器的PM2.5小时浓度读数，单位为微克每立方米 (C) PM10 ConHR (μg/m³)：Met One EBAM PLUS仪器的PM10小时浓度读数，单位为微克每立方米 (D) meanAB_2_5：PurpleAir传感器的PM2.5读数，单位为μg/m³，该值为传感器A、B双通道的平均结果 (E) meanAB_10：PurpleAir传感器的PM10读数，单位为μg/m³，该值为传感器A、B双通道的平均结果 ------------------ MultiSensor_IntercalibrationData.csv： 该文件包含13台PurpleAir传感器的小时级观测数据，时间范围为2020年6月28日至2020年7月11日。各字段说明如下： (A) Time：观测对应的日期与时间 (B)至(AS)：PM2.5与PM10的PurpleAir传感器观测数据，单位为μg/m³。每台独立传感器以前缀“S_X”标识，其中“X”代表传感器编号。每台传感器对应4个字段：PM2.5A、PM2.5B、PM10A、PM10B，其中“A”与“B”分别代表该传感器的两个独立采样通道。