Tiny particles ‘threaten brain’

January 9, 2004 | Source: BBC News

Microscopic pollutant particles given off by traffic and industry can enter the bloodstream and the brain after being inhaled, scientists have found.

The particles are known to cause lung damage in susceptible patients, and are implicated in cardiovascular disease. Experiments on rats and humans have now discovered they can penetrate further into the body, including the brain, with unknown results.

UK scientists are calling for vigilance over the finding and the possible effects of the new group of nanoparticles.