The government's top medical adviser has called on ministers to do more to tackle the dangers of passive smoking.

In his annual public health report, published on Thursday, Sir Liam Donaldson warned that three million people in the UK inhale smoke from other users in their workplace.

Forum Response: Teenage Cancer Trust

Simon Davies, chief executive of the Teenage Cancer Trust, told ePolitix.com: "We are fully behind this initiative and will do anything we can to support Sir Liam. Smoking amongst young people, particularly teenage girls is all too common.

"Any move that restricts places where smokers can light up helps them and the rest of us that can suffer from their habit. I was in New York recently where they have introduced a public smoking ban and it was liberating to be able to go into any public place and not feel the discomfort of a noxious, smoky environment.

"The system was working well and even smokers confessed that because of the ban they were smoking less. That has to be good for the public's health and will reduce pressure on the health services.

"And despite the anxiety expressed by commerce there were no serious adverse effects on business, apart from tobacco companies - and they deserve to lose out. The sooner this is made law the better."

Forum Response: The Stroke Association

Jerry Doyle, spokesman for the Stroke Association, told ePolitix.com: "Passive smoking is a growing concern at the Stroke Association as research suggests it is a risk factor for stroke.

"We also urge smokers to give up smoking, as they are three times more likely to suffer a stroke.

"The Stroke Association has a free fact sheet on Smoking and Stroke that offers advice on how to quit. To order a copy call 0845 30 33100."