The old alchemist warned that the fumes from the experiment were toxical and should not be inhaled.

She left the company because the toxicness of the workplace began to affect her health.

Local residents filed complaints after the company dumped toxics into the wetlands.

The company was fined after illegally dumping toxic wastes into the river.

The bank hid billions in toxic debt on its balance sheet until investors discovered the losses.

Researchers measured the acute toxicity of the chemical to determine safe handling procedures.

Researchers evaluated the chemical's chronic toxicity after exposing laboratory animals to low doses for six months.

The bank wrote off millions in toxic debts to stabilize its balance sheet.

The company uses only non-toxic dyes in its clothing line to protect both workers and consumers.

The factory was fined after inspectors discovered barrels of toxic waste leaking into the river.