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January 25th, 2007
Several elements in vehicle exhaust can damage lung tissue, but the most harmful are nanoparticles with organic hydrocarbon components on the surface, present in far higher concentrations near freeways.
"The study suggests that there may be something in particular about primary emissions -- fresh emissions -- that are particularly dangerous" as compared to settled pollution, said Sandstrom.
"We don't know enough about the toxic effect of primary traffic emissions," he said, adding that this paper could influence deliberations currently underway in the European Union on funding priorities for research on pollution.
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