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Lancet study links second-hand smoke to nearly 1.7 million deaths in 2023

France 24 · first seen 08.09.2026

A new study published in The Lancet reports that second-hand smoke exposure contributed to nearly 1.7 million deaths worldwide in 2023, affecting over 2.7 billion people.

  • Over 2.7 billion people were exposed to second-hand smoke in 2023.
  • A Lancet study attributes nearly 1.7 million deaths to second-hand smoke for the year.

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