Hi Windy team,
please have a look of todays SO2 concentration over europe. The limit value (treshold) is 350 microgramm / m³.
1 Milligramm (mg) = 1 tausendstel Gramm = 10^(−3) g. 1 Mikrogramm (μg) = 1 millionstel Gramm = 10^(−6) g.
Please check the unit of SO2 and correct the legend accordingly.
Thanks