Passive smoking causes a range of impacts from cancer and heart disease to irritation of eyes and stinking clothes. For Britain's 3.4 million people with asthma, it is a constant hazard. Nearly half of all children in Britain live in a smoking household and over 17,000 under-5s are hospitalised as a result of their parents' smoking each year. Here you can look at the evidence and judge for yourself. Comprehensive ASH briefing on the state of scientific knowledge on passive smoking.
New research shows low awareness among parents of the health risks to children of passive smoking.
ASH takes apart tobacco industry propaganda about a WHO passive smoking study. It was challenged by the tobacco industry but the court threw out the complaint . Conducted by the US Environmental Protection Agency. This has been challenged by tobacco companies over procedural points, but the science remains robust. Also see the EPA comment on legal action and summary factsheet .