Polluted: detritus in the River Avon

Low tide reveals the junk dumped in the River Avon

The River Avon flows through Bristol just a few miles before reaches its end at Avonmouth where it flows into the Severn Estuary. The tidal range in Bristol is often as much as 12 metres, with a high tide twice a day. On a very low tide, the exposed riverbed reveals the detritus that has been dumped in the river and subsequently sunk to the bottom. This pollution, stuck in the mud of the riverbed, spends much of its time hidden from sight. As the water level drops, and the junk becomes visible, the river’s bird-life uses some items as temporary perching places. Amongst other things, these abandoned items include shopping trolleys, cycles, road signs and railings.