Air pollution caused by diesel exhaust fumes could cause heart attacks and strokes, researchers warn.
High-level exposure to the fumes in tests led to harmful changes in blood vessels and clotting.
Experts are advising people to exercise away from traffic to cut the risk, especially if they have known heart conditions.
A study by the University of Edinburgh and Swedish researchers measured the effects of diesel exhaust on heart and blood vessel functions in surroundings which mimicked a busy street.
Monitors showed inhalation of diesel exhaust caused a rise in clot formation of up to 25 per cent in the hours after exposure.
Source - Daily Mail