Air quality data created by the hackAIR Horizon2020 project

The current datasets comprise of air quality data collected or created within the hackAIR project (https://platform.hackair.eu/) all around Europe from February 2018 until November 2018. i) "measurements_arduino.xlsx": PM10 and PM2.5 measurements collected by hackAIR users with stationary hackAIR sensors (https://www.hackair.eu/hackair-home-v2/). These sensing devices are based either on an Arduino or a Wemos board. The first column is the unique identifier for the measurement in the hackAIR database. The date/time is in UTC timezone, while the unit of the pollutant value is μg/m3. ii) "measurements_bleair.xlsx": PM10 and PM2.5 measurements collected by hackAIR users with mobile hackAIR sensors (https://www.hackair.eu/hackair-mobile/). The first column is the unique identifier for the measurement in the database. The date/time is in UTC timezone, while the unit of the pollutant value is μg/m3. iii) "measurements_sky_photos.xlsx": Air pollution estimations from photos depicting sky. The hackAIR platform estimates the particulate matter content in the air from Flickr photos, photos from webcams and sky photos that users upload on the hackAIR mobile application, based on the colour of the sky. This is expressed as Aerosol Optical Depth (AOD). In the current dataset, the timezone is UTC, while AOD is unitless. The pollutant index is based on a scale created for the purposes of the hackAIR project.本数据集涵盖2018年2月至2018年11月期间，在欧洲全境范围内由hackAIR项目（https://platform.hackair.eu/）采集或生成的空气质量数据。 (i) "measurements_arduino.xlsx"：由使用固定式hackAIR传感器（https://www.hackair.eu/hackair-home-v2/）的hackAIR用户采集的PM10与PM2.5监测数据。此类传感设备基于Arduino或Wemos主板开发。数据集首列为hackAIR数据库中该监测记录的唯一标识符，日期/时间采用UTC时区，污染物浓度单位为μg/m³。 (ii) "measurements_bleair.xlsx"：由使用移动式hackAIR传感器（https://www.hackair.eu/hackair-mobile/）的hackAIR用户采集的PM10与PM2.5监测数据。数据集首列为该数据库中该监测记录的唯一标识符，日期/时间采用UTC时区，污染物浓度单位为μg/m³。 (iii) "measurements_sky_photos.xlsx"：基于天空照片的空气污染估算数据。hackAIR平台可通过分析用户上传至hackAIR移动应用的Flickr照片、网络摄像头拍摄画面及天空照片，结合天空色彩估算空气中的颗粒物含量，该结果以气溶胶光学厚度（Aerosol Optical Depth, AOD）表示。本数据集采用UTC时区，AOD为无量纲数值。 本数据集所采用的污染物指数基于hackAIR项目定制的分级标准。