One in a hundred deaths due to passive smoking

Around one in a hundred deaths worldwide each year is due to passive smoking, experts have claimed.

Exposure to second-hand smoke causes more than 600,000 people to die each year - 165,000 of them children - according to Dr Annette Prss-Ustn from the World Health Organisation (WHO).

Smoke-free legislation in many places has helped reduce exposure in the workplace, but many remain concerned about women and children experiencing passive smoking in the home.

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Writing in The Lancet, the authors conclude: "There can be no question that the 1.2 billion smokers in the world are exposing billions of non-smokers to second-hand smoke."