Invasive plants deployed to remove heavy metals from polluted rivers

A non-native invasive plant has been found to successfully remove heavy metals from a polluted Welsh river

Water hyacinths in flower
Common water hyacinth (Eichhornia crassipes) in flower

A non-native invasive plant has been found to successfully remove heavy metals from a polluted Welsh river. 

Natural Resources Wales (NRW) used water hyacinths, which feature on the European Commission's list of species of EU wide concern, to treat the Nant-Y-Fendrod in Swansea which is failing to meet water quality standards under the Water Framework Directive.

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