Related to PM output, here is a crowdsourced effort to collect air quality data ...

		bergie on Feb 27, 2018 \| parent \| context \| favorite \| on: Diesel cars can be banned from German cities, cour... Related to PM output, here is a crowdsourced effort to collect air quality data around the world: https://maps.luftdaten.info/#2/0.0/0.0 Building and deploying your own sensor is pretty easy: https://bergie.iki.fi/blog/microflo-particulate-sensors/