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Secondhand smoke is strongly linked to an elevated risk of lung cancer, even for non-smokers

The trend of companies claim to be increasingly environmentally friendly than before to appeal to the scrutinization of consumers concerned about their environmental impacts

The analysis of the materials collected during this process by scanning electron microscopy revealed that the smoke of a 3R4F reference cigarette contained approximately 6 10 11 ultra-fine solid particles of a median diameter of 75 nm (90% of the particles had a diameter between 20 and 120 nm) [74]

IARC, Lyon, FR, pp 377438 International Agency for Research on Cancer (1994) Some industrial chemicals