Welsh rivers in urban locations still have damaged food chains and fewer species of invertebrates in comparison to rural rivers — ScienceDaily

Toxic chemicals from past decades could be hindering the recovery of Britain’s urban rivers, concludes a recent study by scientists from Cardiff University, the University of Exeter, and the Centre for Ecology and Hydrology. During the 1970s, over 70% of the rivers in the South Wales valleys were classified as grossly polluted, by a combination […]