To help you to monitor the water quality status of your local river, click here for an easy-to-use Water Pollution Test Kit

Developed by the Ballinderry Fish Hatchery Ltd., this useful reference will inform your River File comments to the Northern Ireland Environment Agency.

Invertebrates in our rivers and streams are good indicators of water pollution levels. Some can only live in very clean water. Others can survive even when the water is very polluted.

These cards show universal indicators of water quality and provide a quick and easy means of monitoring water pollution in Northern Ireland's rivers.