Sources of carbonaceous aerosols over the United States and implications for natural visibility


We use a global 3-D model simulation of elemental carbon (EC) and organic carbon (OC) aerosols to interpret year-round observations for 1998 at a network of 45 U.S. sites (IMPROVE) and from there to better quantify the natural and anthropogenic U.S. sources of these aerosols. Our resulting best estimate of 1998 sources in the contiguous United States are 0… (More)


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