Jon Moses:
While we learn that *every single river* in England is polluted, here is the River Limmat in Switzerland. It runs through the centre of the largest city, Zürich (population: 436,000).
Water Quality: Excellent
Public Swimming Baths: 11
We have been mugged. #WildIsles
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@biffvernon Also, this wasn't the case in Switzerland a few decades ago and improved by explicit efforts with exactly that goal. A random article in English on the topic: https://www.swissinfo.ch/eng/politics/wastewater_bathing-prohibited-in-switzerland-definitely-a-thing-of-the-past/43296836
