River Wensum, Norwich: "The EA said.. result of recent heatwave ultimately depleting the river's oxygen - and because heavy rainfall Thurs likely flushed in contamination from surface water drainage systems. " So, 🤔 What are the common contaminants? 1/2

Fish in Norwich river killed by heat and drain water, say expertsThe Environment Agency believes the fish were killed as a result of the heat and drain water.www.bbc.co.uk