This is an interactive plot showing the Pandora NO2 data from five measurement sites in Toronto. It should update automatically every day. There are a variety of tools to explore the data. e.g., add or remove measurement sites by clicking entries on the legend at the right, the top-left has buttons to jump to a specific year in the timeseries, and the top-right has tools to scale axis. Please note that it can take a while to load, as there is a large amount of data within the plot.