A substance that contaminates or makes something impure, especially in the context of the environment.

प्रदूषक

English Usage: The factory is responsible for releasing a significant amount of pollutants into the river.

Hindi Usage: फैक्टरी नदी में बड़ी मात्रा में प्रदूषक छोड़ने के लिए जिम्मेदार है।