Soot health risk in eastern US

The US is less smoggy than it used to be, but dangerous soot particles are rising in the eastern part of the country, Reuters reported the American Lung Association as saying on Tuesday.
In its annual State of the Air report, the group applauded reductions in smog since its peak in 2002, and blamed the rise in soot — also called particle pollution — on coal-fired power plants in the east.
"Particle pollution is lethal, it can kill you," the association's Janice Nolen said in a telephone intervew. Fine soot particles can get trapped deep in the lungs and can lead to heart attack, stroke, lung cancer and asthma attacks, Nolen said.