And it all ends up in the blood, like toxic sludge dumped into a river.

Originally, electroplaters were told that their toxic sludge had to be placed in landfills.

In any case, eating toxic sludge is a self-defeating lifestyle.

They say they have also found tons of toxic sludge and other byproducts scattered about the 400-acre plant site.

The entire area is contaminated with toxic sludge and heavy metals, which forms a layer of poisonous black muck over everything.

If toxic sludge was building up in your intestines, you'd want to get it out, pronto.

The toxic sludge from the laundering process has the potential to cause devastation to our environment.

By the time the flood retreated, everything was covered in toxic industrial sludge.

A spill from a reservoir containing highly toxic red sludge cost the lives of at least three people.

Character 1: Did they ever find that missing toxic sludge?