A leading charity has urged Scotland to devise more effective measures to guard children against the effects of second-hand smoke in cars.
The British Lung Foundation (BLF) wants Scotland to follow the lead of Wales, which is planning a ban on smoking in cars carrying children.
A total of 51% of British children in the 8-15 age group are being exposed to cigarette smoke while travelling in a car, the lung disease charity's survey has found.
One single cigarette being smoked in a car causes a greater density of second-hand smoke than a whole evening's smoking in a pub, even if the vehicle's windows are open.
Air quality inside a smoker's car is comparable to industrial smog in cities such as Beijing or Moscow - even if the windows are kept open, the BLF said.
Recent studies conducted by the British Medical Association found that passive smoking by children often leads to lung disease, poor lung function, asthma attacks and even cot death.
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