A person who has a prominent or senior position.

The amount of lead in an environment, often referring to pollution levels.

लीड की मात्रा

English Usage: The high lead levels in the water supply raised health concerns.

Hindi Usage: जल आपूर्ति में लीड के उच्च स्तर ने स्वास्थ्य संबंधी चिंताएँ बढ़ाईं।