Raw sewage 'flowing into rivers across England and Wales'

WWF analysis reports that 40% of rivers are polluted with sewage that can harm wildlife and put human health at risk

Raw sewage is flowing into rivers at thousands of sites across England and Wales, a report has warned, harming wildlife and putting human health at risk.

The total amount of raw sewage intentionally being put into rivers is unknown, which is a "huge concern", according to conservation group WWF, which produced the analysis. The available data suggests that more than half of overflow sites spill sewage into rivers at least once a month and 14% at least once a week.