Environment & Ecology · Environment
With reference to major sources of lead pollution, consider the following statements: I. Informal recycling of used lead-acid batteries is a major source of environmental lead contamination. II. Aviation gasoline used in piston-engine aircraft can be a source of lead emissions. III. The writing core of an ordinary pencil is a significant source of elemental lead exposure in humans. IV. Mining, smelting and refining of lead-bearing ores can release lead into the environment. Which of the statements given above are correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1I, II and IV only✓
- 2I and III only
- 3II and III only
- 4I, II, III and IV
Correct answer
I, II and IV only
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