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Table 2.2-4 2014 NEI Data (tpy) <br /> County PM10 PM,., VOC NO. CO SO, CO, CH4 Nz0 HAPs <br /> La Plata 8,538 1,490 29,432 7,756 21,658 111 409,893 148 11 4,154 <br /> Montezuma 5,589 931 24,349 1,318 10,175 45 234,355 80 6 4,836 <br /> Pueblo 7,474 1,696 18,668 12,015 28,797 3,569 926,481 97 35 4,453 <br /> Bernalillo 42,225 6,024 28,719 17,326 73,744 649 3,028,848 1 315 73 4,948 <br /> Notes: NO.=nitrogen oxides.The 2014 NEI data includes all emissions generating activities(sectors)within a <br /> reporting area (county).Sector examples include agriculture, industrial processes,fuel combustion, mobile <br /> sources/road dust,waste disposal fires,and other retail operations. Note:The greenhouse gas data (CO2, CH4, N20) <br /> data is limited to mobile sources and fires only. <br /> 2.2.1.5 Existing Air Pollutant Emission Sources <br /> There is a total of 141 permitted air quality emission sources that are currently located within 31 miles <br /> (50 km) of the Project Area. The region is generally rural, and the emissions sources are dominated by <br /> mining, power generation, oil and gas production, and aggregate (sand and gravel) processing (CDPHE <br /> 2018). CDPHE (2018) includes in its permits all sources of air quality emissions that are required by law to <br /> acquire a state air quality permit. Sources such as dust from dirt roads, agricultural operations, <br /> recreational activities, and automobile use are not included because they are not regulated as stationary <br /> industrial sources but have the capacity to produce air quality emissions regionally. <br /> Table 2.2-5 illustrates the actual emissions data that have been submitted to CDPHE on an annual basis <br /> within 31 miles (50 km) of the mine site. <br /> Table 2.2-5 CDPHE Reported Actual Emissions Summary <br /> Air Pollution Emission Notice Annual Actual Pollutant Emissions <br /> (tPY) <br /> PM10 PM2.5 CO NO2 S02 VOC1 <br /> 130.85 33.51 1,826.76 596.11 5.75 284.6 <br /> lvolatile organic compound <br /> 2.2.1.6 Climate Change <br /> The primary natural and synthetic greenhouse gases (GHGs) in the Earth's atmosphere are water vapor, <br /> carbon dioxide (CO2), methane (CH4), nitrous oxide (N20), and fluorinated gases. GHGs allow heat from <br /> the sun to pass though the upper atmosphere and warm the earth by blocking some of the heat that is <br /> radiated from the earth back into space. As GHG concentrations increase in our atmosphere they impact <br /> the global climate by further decreasing the amount of heat that is allowed to escape back into space. <br /> Many GHGs are naturally occurring in the environment; however, human activity has contributed to <br /> increased concentrations of these gases in the atmosphere. CO2 is emitted from the combustion of fossil <br /> fuels (i.e., oil, natural gas, and coal), solid waste, trees and wood products, and also as a result of other <br /> chemical reactions (e.g., manufacture of cement). Methane results from livestock and other agricultural <br /> practices and by the decay of organic waste in municipal solid waste landfills. Methane is also emitted <br /> during the production and transport of coal, natural gas, and oil. Nitrous oxide is emitted during <br /> Dunn Ranch Area LBA and Mining Plan Modification 12 <br /> Technical Resources Report <br />