March 21 Draft AQ Handbook - California Air Resources Board

To put this in perspective, the diesel PM emissions estimated for the Roseville Yard in ARB’s 2004 study are 25 tons per year. The potential cancer risk associated with these emissions is 100 in one million at a distance of one mile, or one half mile, depending on the data set used. This rail yard covers one and a half square miles. ................
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