Press release 25/2011 from 27.04.2011 | Last changed: 12.07.2013
Federal Environment Agency: The sky over the Ruhr is blue again!
… although the smoking chimney stacks were the key to prosperity, the unfiltered industrial fumes increasingly burdened the health and sense of well-being of many … although the smoking chimney stacks were the key to prosperity, the unfiltered industrial fumes increasingly burdened the health and sense of well-being of many …
