10.2190/ES.31.3.e U743G1M6467555G4 5 Fugitive Dust Emissions from Mining Areas 279 288 20080402 20080402 20080402 20080402 U743G1M6467555G4.pdf http://baywood.metapress.com/link.asp?target=contribution&id=U743G1M6467555G4 3 B. Chakradhar Regional Research Laboratory, Bhopal, India Mining operations are one of the most predominant sources of atmospheric fugitive dust, released to the air with a size smaller than 100 microns. Field studies were carried out on an unpaved road stretch of 1 km length at a mine site by installing dust samplers in upwind and downwind directions. The total weight of the 6- to 12-wheeled vehicles traveling with mine materials is in the range of 6-15 tons. The loaded vehicle speeds run from 15 to 25 kmph with an ambient wind speed of 0.5 to 8.5 kmph. The silt content of road surface ranges from 7% to 9.4%; moisture content varies between 2.5% and 7.4%. The test runs were carried out five times daily for 30 minutes. Fugitive dust concentrations observed at three downwind directions were between 5132 μg/m³ and 17282 μg/m³. The emission factors estimated varied between 0.22 to 0.74 g/vkt with a predicted dust particulate matter varying from 4888 μg/m³ to 16444 μg/m³. U.S. Environmental Protection Agency, <i>Emission Inventory Requirements</i>, Research Triangle Park, PM-10, North Carolina, 27711, 1994. National Pollutant Inventory (NPI), <i>Emission Estimation Technique Manual for Sand Mining and Processing</i>, Version 1.0, 2001. NPI, Environment Australia, <i>Emission Estimation Technique Manual for Fugitive Emissions</i>, 1999. NPI, Environment Australia, <i>Emission Estimation Technique Manual for Mining</i>, Version 2-3, Canberra, 2001. Sustainability in Mining Dust Control, Environment, Australia, Best Practice Environment Management in Mining, 1998. U.S. Environmental Protection Agency, compilation of <i>Pollution Emission Factors</i>, Vol. 1, Station and Point Area Sources, AP-42 (5th Edition), 13.2.2, Unpaved Roads, North Carolina, 1998. C. Cowherd, Jr., <i>Development of Emission Factors for Fugitive Dust Sources</i>, USEPA, EPA-450/3-74-037, Research Triangle Park, North Carolina, 1974. EPA, Approaches to the Modelling of Emissions from Point, Line and Area Based Sources, Victoria, 2001. M. D. LaGrega, P. L. Buckingham, J. C. Evans, and Environmental Resources Management, <i>Hazardous Waste Management</i> (2nd Edition), McGraw-Hill, New York.