The Guardian is reporting that '90% of the smog is coming from Europe' - it does
not specifically name Germany as the source.
“A large majority of what we are seeing at the moment is the imported pollution from traffic and industrial sources on the continent,” he said.
The cloud of smog has sat over much of Europe for the past two days. Cities in France, Spain, Germany, Italy, Poland and Lithuania we affected. A high pressure system caused light winds across the continent. Stagnant air collects pollution, some of which is light enough to drift many hundreds of kilometres.
In the UK smog levels peaked on Tuesday. A light southerly breeze pushed the cloud across England, Wales and Scotland on Tuesday. A change began arriving on Thursday morning with strong north-easterly conditions expected on Friday to clear the smog away."
https://www.theguardian.com/environ...-warnings-as-smog-cloud-spreads-across-europe