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
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