पर्यावरण संबंधी चर्चाओं में अक्सर 'SPM' शब्द का प्रयोग किया जाता है। SPM का पूर्ण रूप क्या है?

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: