( t these particles trigger a powerful in...)Underground Air - Associated With - DNA Damages,Health

t these particles trigger a powerful inflammatory response (i.e. a general defense reaction in the body). Levels of these particles are particularly high in the spring, when road surfaces dry out and cars are still fitted with studded winter tyres.

"It’s a serious problem, as these particles exist in large concentrations in environments that people remain in for long periods," says Dr Karlsson.

Apart from particles from the underground and the roads, the study also examined those released by the combustion of wood, pellets and diesel. None of the other types of particle tested were totally harmless. Modern wood- and pellet-burning boilers gave off much fewer emissions than old ones, but the particles produced were no less harmful.



Source-Eurekalert
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