The head of air quality for the state of Oklahoma says there is "really no comparison” between the choking air pollution at the Olympics in Beijing and the smog and soot problems faced by Oklahoma. Beijing is ranked by the World Bank as having the 13th worst air quality in the world. But many of the pollutants that taint China's skies also strain the lungs of asthmatics and athletes here. And similarly, a mix of weather, industry, electricity use, automobiles and lawn mowers all contribute to the troubles. read more ...