‘We are not going away’: the volunteers fighting back against England’s polluted rivers

Determined fishers are testing their stretches of river for pollution as citizen scientists take on the water companies

If you go down to quiet stretches of river in the UK at the right time of year, you are likely to find people peacefully standing there with a fishing rod, gazing into the sparkling, steady flow, hoping to get a nibble.

Anglers, of which there are at least 2 million in England, go down to their treasured slices of waterway whenever they can to tend them, trimming vegetation, creating wetland spawning habitats, and even painstakingly cleaning the gravel. It sounds like a pretty peaceful pursuit, but when the Guardian went to visit some Angling Trust members at their clubs around Reading, there was palpable anger in the air.