A group of environmental campaigners have created an app to help keep track of pollution levels in local rivers.
The idea came from members of the River Rivelin and Loxley Rangers, a volunteer group based in Sheffield.
Users have been encouraged to submit photos and videos of pollution in the waterways that can then be reported to the Environment Agency
The rangers want to improve the recording of discharges into the rivers, BBC reported.
The app's designer John Blewitt, who has spent 40 years monitoring the rivers, said he wanted to be able to keep track of how long it took the authorities to respond to reports.
He said: “If it doesn’t look like water and it smells funny, then there’s a problem and it’s worth recording it on the app.”
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The app enables pollution incidents to be reported and tracked and also includes a map of incidents that will help the rangers build up a wider picture.