Is It Safe to Swim in the River Seine? | BBC Global

France invested $1.5 billion (£1.2bn) to clean up Paris’ River Seine, but tests show that it is unsafe to swim after heavy rains.

Does this mean that the money went down the drain – figuratively and literally?

BBC senior journalist Petra Zivic interviewed Dan Angelescu, the founder of Fluidion, a company monitoring water quality in the French capital.