Coal plants are emitting a lot of unhealthy stuff.

The coal plant Jänschwalde in Germany emitted 672kg mercury, 1780kg lead and 208 kg arsenic in 2017 according to the European Pollutant Release and Transfer Register. https://de.wikipedia.org/wiki/Kraftwerk_J%C3%A4nschwalde#Emi...

This is the worst coal plant in Germany, but the others are not so much better.