Final FONSI and EA for hot cargo pad on Kirtland AFB - Kirtland Air ...

Construction Commuter Emissions
Emissions from construction workers commuting to the job site are estimated in this spreadsheet.
Emission Estimation Method: United States Air Force (USAF) Institute <strong>for</strong> Environment, Safety <strong>and</strong> Occupational Health Risk Analysis (IERA) Air Emissions Inventory Guidance Document
<strong>for</strong> Mobile Sources at Air Force Installations (Revised December 2003).
Assumptions:
Passenger vehicle emission factors <strong>for</strong> scenario year 2010 are used.
Assume up to 48 workers would be required at the site.
Passenger vehicle model year 2000 is used.
The average roundtrip commute <strong>for</strong> a construction worker =
Number of construction days =
Number of construction workers (daily) =
Riders per vehicle =
Number of vehicles (daily) =
50 miles
240 days
48 people
1 person
48 vehicles
Average On-Road Vehicle Emission Factors (grams/mile)
Vehicle Type
Vehicle Type
Category NO x VOC CO SO x PM 10 PM 2.5 CO 2 Category
Default Fuel Economies <strong>for</strong> On‐Road Vehicles
Default Fuel
Economy (mpg)
LDGV 2.1 2.9 33.1 0.072 0.71 0.20 391.97 Light Duty Gasoline Vehicles LDGV 22.64
LDGT1 2.2 3.2 35.2 0.096 1.08 0.29 526.04 Light SUVs <strong>and</strong> Pickups LDGT1 16.87
LDGT2 2.5 3.5 38.6 0.098 2.58 0.66 535.24 Heavy SUVs <strong>and</strong> Pickups LDGT2 16.58
HDGV 2.9 3.5 41.1 0.154 5.51 1.42 843.56 Heavy Duty Gasoline Vehicles HDGV 10.52
LDDV 1.2 0.6 1.7 0.116 0.80 0.28 373.70 Light Duty Diesel Vehicles LDDV 27.17
LDDT 1.5 1.1 2.9 0.157 1.59 0.48 505.90 Light Duty Diesel Trucks LDDT 20.07
HDDV 6.5 4.7 19.1 0.512 7.73 2.01 1645.60 Heavy Duty Diesel Vehicles HDDV 6.17
MC 0.6 6.5 41.0 0.032 0.08 0.03 177.48 Motorcycles MC 50.00
Notes:
Notes:
Emission factors <strong>for</strong> all pollutants except CO 2 are from USAF IERA 2003. Values from Table 4-51 (USAF IERA 2003).
Emission factors <strong>for</strong> PM, PM 10 , SO x are from Table 4-50 (USAF IERA 2003).
Emission factors <strong>for</strong> VOC, CO, <strong>and</strong> NO x are from Tables 4-2 through 4-49 <strong>for</strong> the 2010 calendar year, 2000 model year (USAF IERA 2003).
It is assumed that the average vehicle will produce 19.564 pounds of CO 2 per gallon of gas used <strong>and</strong> 22.384 pounds of CO 2 per gallon
of diesel used (http://www.eia.doe.gov/oiaf/1605/coefficients.html).
Using the default fuel economy <strong>for</strong> the vehicle type categories in USAF IERA Table 4-51, the CO 2 emission factor was estimated.
Example: HDDV CO 2 emission factor = 22.384 lbs CO 2 /gallon diesel * gallon diesel/6.17 miles * 453.6 g/lb = 1645.60 g/mile
On-Road Vehicle Emissions (Annual)
Vehicle Type
Average On‐Road Vehicle Mix
Vehicle Type Average On-Road
Category NO x VOC CO SO x PM 10 PM 2.5 CO 2 Category Vehicle Mix (%)
LDGV 1837.33 2537.27 28959.87 62.99 621.19 174.98 342943.79 LDGV 68.9
LDGT1 318.48 463.24 5095.62 13.90 156.34 41.98 76150.00 LDGT1 11.4
LDGT2 269.84 377.78 4166.35 10.58 278.48 71.24 57771.62 LDGT2 8.5
HDGV 55.24 66.67 782.86 2.93 104.95 27.05 16067.77 HDGV 1.5
LDDV 59.43 29.71 84.19 5.74 39.62 13.87 18506.96 LDDV 3.9
LDDT 36.19 26.54 69.97 3.79 38.36 11.58 12205.80 LDDT 1.9
HDDV 239.37 173.08 703.37 18.85 284.66 74.02 60600.05 HDDV 2.9
MC 7.62 82.54 520.63 0.41 1.02 0.38 2253.77 MC 1
Total (lbs) 2823.49 3756.83 40382.86 119.20 1524.62 415.10 586499.77 Notes:
Total (tons) 1.41 1.88 20.19 0.06 0.76 0.21 293.25 Vehicle mix is from Table 6-1 (USAF IERA 2003).
Example Calculation: NO x emissions (lbs) = 48 vehicles * percent of vehicle mix /100 * NO x emission factor (g/mile) * 50 miles/day * number of construction days * lb/453.6 g
C-12 Construction Commuter