The record-breaking warm weather has caused algae on the River Taff to bloom. Huge area of the green weed can be seen along the river in Cardiff. There is a large amount near the weir at Llandaff Rowing Club and close to Blackweir and the stretch of river close to Sophia Gardens.
Natural Resources Wales has confirmed that its environment team has attended and taken samples for analysis, which have confirmed that it is not toxic blue-green algae .However, officials say it is extremely difficult to get rid of.
A spokesman said that it is green filamentous algae, which is also known as hydrodictyon or net weed.
