पेट्रोलियम और कोयले को गैर-नवीकरणीय (अनवीकरणीय) ईंधन के रूप में जाना जाता है क्योंकि वे:

Prolonged occupational exposure to excessive noise from heavy machinery without hearing protection causes noise-induced hearing loss. Excess noise is categorized as a:

Long-term exposure to indoor air pollutants, such as smoke from burning biomass fuels, significantly increases the risk of developing chronic respiratory conditions like: