Why are there so many `hazardous` plastic beads in River Irwell?

Why are there so many `hazardous` plastic beads in River Irwell?

Irwell Signs Up Quality Care Group on Legal Expenses Partnership -

Irwell Signs Up Quality Care Group on Legal Expenses Partnership -

Water rescue teams are at the scene on the River Irwell after reports a man entered the water

Water rescue teams are at the scene on the River Irwell after reports a man entered the water