poisonous waste from the chemical works
poisonous waste materials; can cause injury (especially by chemical means).
A lot of poisonous waste from the chemical works polluted the river.
With the explosion of population in the world, more and more poisonous waste is produced.
A frightening brew of poisonous waste is said to be accumulating in Britain's biggest chemical dump... The local authority... is rightly worried about the... tip on its doorstep.
The factory dumped poisonous wastes into the river and killed off the fish.
