PurpleAir data downloader plug-in for QGIS
I developed a QGIS plugin to download historical air quality data from the PurpleAir website, using its API. The tool requests a list of sensors and their coordinates within a requested bounding box, and downloads historical data for each sensor within a specified timeframe. It calculates averages for that historical data, and creates a point layer with sensor locations and average pollution attributes, which is added to the map. I used the Requests library to retrieve JSON data, concurrent futures library to retrieve multiple JSON files simultaneously, Pandas to calculate averages, and PyQT5 and QGIS to provide the user with a GUI. The plugin is user-friendly and reusable.
Screenshots (click to enlarge):
