Tunnels Concentrate Pollution By 1,000 Times

Manhattan is surrounded by tunnels, bringing drivers from New Jersey, Brooklyn, Queens, Long Island and beyond into the city for days, weeks and years.

New research on environmental conditions in Australian tunnels documents a toxic cocktail of ultrafine particles in concentration levels so high, they have the potential to darm both drivers and passengers. via Science Daily

Drivers with windows tightly closed were safer than people driving older vehicles, motorcycles and convertibles. The pollution concentrations were among the highest every recorded, compared to earlier studies.