A new study has shown how airborne particles get into the bloodstream and gather at points of weakness, causing heart problems Lewis Whyld/Press AssociationScientists have proved that deadly particles of pollution can get into the bloodstream by asking volunteers to breathe in microscopic specks of gold. Research has shown that particles a thousand times smaller than the width of a human hair can pass through the lungs. It was demonstrated for the first time that they gather in the most vulnerable areas of blood vessels. Experts said that the study provided the “missing link” between airborne nanoparticles, often generated by vehicle emissions, and the increase in levels of poor heart health as pollution levels rise. Sadiq Khan, the London mayor, said it was “further evidence” that toxic air was the biggest environmental health…

Source: The Times April 26, 2017 23:01 UTC