harmful substances

Translations
вредные вещества
The factory was fined for releasing harmful substances into the river.
Фабрика была оштрафована за выброс вредных веществ в реку.
Definitions
Harmful substances are materials or chemicals that can cause damage to living organisms, the environment, or both, often resulting in adverse health effects, pollution, or ecological disruption.
Words
harmful

adjective
вредные
substances

noun
вещества