First off the pipeline Sample emissions graphing using gnuplot
Worth sharing: we’ve taken some of the queries posted on the wiki sample SPARQL page and made a graph. Hopefully some upcoming posts will refine this methodology. We’re looking to using gnuplot to automate month to month graph production.
Here’s a first look at the last month NO2 for the city centre (Oct-Nov 2014). Each line represents an hour of the day. You can see how the level rises and falls for the day as a whole, which seems to indicate that there is a degree of lag/stability in the levels.