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2.04.8 <br />TABLE IV -7 <br />PROXIMATE AVERAGE AIR <br />Pollutant <br />Diesel b <br />equipment <br />(lbs/hr) <br />Gasoline c,d <br />Equipment <br />(lbs/hr) <br />Total <br />(lbs/hrs) <br />Particulates <br />9 <br />0.9 <br />9.9 <br />Sulfur oxides <br />17 <br />0.3 <br />17.3 <br />Carbon monoxide <br />49 <br />201. <br />250. <br />Hydrocarbons <br />16 <br />16. <br />32. <br />Nitrogen oxides <br />277 <br />S. <br />282. <br />aCalculated from hourly fuel consumption figures from anticipated vehicle <br />use at Keenesburg. (See footnotes b and c below) <br />bBased on the following: (1) Environmental Protection Acency (1975) <br />emission factors for off-highway, diesel powered haulage trucks which <br />are expected to be the largest users of diesel fuel, (2) 530 gal/hr <br />average diesel fuel consumption, and (3) standard manufacturer installed <br />emission control systems. <br />cBased on the following: (1) Environmental Protection Agency (1975) <br />emission factors for heavy-duty, gasoline -powered, highway vehicles <br />with post -1913 emission control equipment and operating at high altitude, <br />(2) average fuel consumption at 48 gal/hr, and (3) mileage at 10 miles/gal. <br />dAn unknown percentage of these emissions will be released away from the <br />mine site on local highways, etc. <br />-71- <br />