Uploaded August 2026 | Updated September 2026, 3 weeks ago

---

What does clean mean?

In episode 2 of Thames Unfiltered, Lucy Tobin speaks to scientists, campaigners and conservationists about how river health is measured.

Listen now: podcasts.apple.com/us/podcast/episode-2-what-does-clean-really-mean/id6792023595?i=1000778673241

#ad