I was wondering if there was an authority providing PM1 official measurement as open data. I checked in Europe and in the US but could not find anything apart from PM10 or PM2.5 official measurements. Many thanks
Thank you Mario for your reply. I am still looking for official measurements but I don't find any open data, probably because PM1 are not yet regulated :(
You may have a look on the EBAS website for background station measurements. Some PM1 mass measurements are available in Europe. http://ebas-data.nilu.no/default.aspx