On-Road Mobile Source Emissions Factors |
|
|
Running Exhaust |
Start-Up |
Start-Up |
Hot Soak |
Diurnal |
Start-Up |
|
CO |
ROG |
NOx |
SOx |
PM10 |
CO |
ROG |
ROG |
ROG |
NOx |
Vehicle Type |
g/mile |
g/mile |
g/mile |
g/mile |
g/mile |
g/trip |
g/trip |
g/trip |
g/trip |
g/trip |
Light-Duty Trucks - Cat |
3.24 |
0.16 |
0.72 |
0.01 |
0.04 |
45.7 |
4.08 |
0.62 |
18.96 |
2.42 |
Heavy Heavy Duty Diesel Truck |
7.2 |
1.22 |
9.2 |
0.32 |
0.72 |
0 |
0 |
0 |
0 |
0 |
|
Estimated Vehicle Emissions |
|
Annual Average |
|
|
Average |
VMT/trip |
Total VMT |
Starts |
CO |
ROG |
NOx |
SOx |
PM10 |
|
|
|
Vehicle Type |
worker/day |
mi/trip |
mi/day |
No.Day |
lb/year |
lb/day |
lb/day |
lb/day |
lb/day |
|
|
|
Light-Duty Trucks - Cat |
637717.5 |
15 |
9565763 |
1275435 |
196826.389 |
69833.603 |
21988.319 |
210.885 |
843.542 |
|
|
Heavy Heavy Duty Diesel Truck |
212572.5 |
15 |
3188588 |
425145 |
50612.500 |
8576.007 |
64671.528 |
2249.444 |
5061.250 |
|
|
Total Off-Site |
|
|
12754350 |
|
123.719 |
39.205 |
43.330 |
1.230 |
2.952 |
Tons/year |
|
|
|
|
|
|
|
|
|
|
|
Halloween |
|
|
|
|
Average |
VMT/trip |
Total VMT |
Starts |
CO |
ROG |
NOx |
SOx |
PM10 |
|
|
Vehicle Type |
worker/day |
mi/trip |
mi/day |
No.Day |
lb/day |
lb/day |
lb/day |
lb/day |
lb/day |
|
|
Light-Duty Trucks - Cat |
12,054 |
15 |
180812.3 |
24108.3 |
3720.417 |
1319.996 |
415.624 |
3.986 |
15.945 |
|
|
Heavy Heavy Duty Diesel Truck |
4,018 |
15 |
60270.75 |
8036.1 |
956.679 |
162.104 |
1222.423 |
42.519 |
95.668 |
|
|
Total Off-Site |
|
|
241083 |
|
4677.095 |
1482.100 |
1638.046 |
46.505 |
111.613 |
|
|
|
|
|
|
|
|
|
|
|
|
Thanksgiving |
|
|
|
|
Average |
VMT/trip |
Total VMT |
Starts |
CO |
ROG |
NOx |
SOx |
PM10 |
|
|
Vehicle Type |
worker/day |
mi/trip |
mi/day |
No.Day |
lb/day |
lb/day |
lb/day |
lb/day |
lb/day |
|
|
Light-Duty Trucks - Cat |
20,660 |
15 |
309895.9 |
41319.45 |
6376.458 |
2262.354 |
712.341 |
6.832 |
27.328 |
|
|
Heavy Heavy Duty Diesel Truck |
6,887 |
15 |
103298.6 |
13773.15 |
1639.661 |
277.831 |
2095.122 |
72.874 |
163.966 |
|
|
Total Off-Site |
|
|
413194.5 |
|
8016.119 |
2540.186 |
2807.464 |
79.706 |
191.294 |
|
|
|
|
|
|
|
|
|
|
|
|
New Year |
|
|
|
|
Average |
VMT/trip |
Total VMT |
Starts |
CO |
ROG |
NOx |
SOx |
PM10 |
|
|
Vehicle Type |
worker/day |
mi/trip |
mi/day |
No.Day |
lb/day |
lb/day |
lb/day |
lb/day |
lb/day |
|
|
Light-Duty Trucks - Cat |
13,779 |
15 |
206681.6 |
27557.55 |
4252.708 |
1508.852 |
475.088 |
4.556 |
18.226 |
|
|
Heavy Heavy Duty Diesel Truck |
4,593 |
15 |
68893.88 |
9185.85 |
1093.554 |
185.297 |
1397.318 |
48.602 |
109.355 |
|
|
Total Off-Site |
|
|
275575.5 |
|
5346.262 |
1694.149 |
1872.407 |
53.159 |
127.581 |
|
|
|
|
|
|
|
|
|
|
|
|
Martin Luther King's Birthday |
|
|
|
|
Average |
VMT/trip |
Total VMT |
Starts |
CO |
ROG |
NOx |
SOx |
PM10 |
|
|
Vehicle Type |
worker/day |
mi/trip |
mi/day |
No.Day |
lb/day |
lb/day |
lb/day |
lb/day |
lb/day |
|
|
Light-Duty Trucks - Cat |
8,606 |
15 |
129083.6 |
17211.15 |
2656.042 |
942.358 |
296.718 |
2.846 |
11.383 |
|
|
Heavy Heavy Duty Diesel Truck |
2,869 |
15 |
43027.88 |
5737.05 |
682.982 |
115.728 |
872.699 |
30.355 |
68.298 |
|
|
Total Off-Site |
|
|
172111.5 |
|
3339.024 |
1058.086 |
1169.417 |
33.201 |
79.681 |
|
|
|
|
|
|
|
|
|
|
|
|
President's Day |
|
|
|
|
Average |
VMT/trip |
Total VMT |
Starts |
CO |
ROG |
NOx |
SOx |
PM10 |
|
|
Vehicle Type |
worker/day |
mi/trip |
mi/day |
No.Day |
lb/day |
lb/day |
lb/day |
lb/day |
lb/day |
|
|
Light-Duty Trucks - Cat |
17,219 |
15 |
258288.8 |
34438.5 |
5314.583 |
1885.603 |
593.715 |
5.694 |
22.777 |
|
|
Heavy Heavy Duty Diesel Truck |
5,740 |
15 |
86096.25 |
11479.5 |
1366.607 |
231.564 |
1746.220 |
60.738 |
136.661 |
|
|
Total Off-Site |
|
|
344385 |
|
6681.190 |
2117.167 |
2339.935 |
66.432 |
159.438 |
|
|
|
|
|
|
|
|
|
|
|
|
Easter |
|
|
|
|
Average |
VMT/trip |
Total VMT |
Starts |
CO |
ROG |
NOx |
SOx |
PM10 |
|
|
Vehicle Type |
worker/day |
mi/trip |
mi/day |
No.Day |
lb/day |
lb/day |
lb/day |
lb/day |
lb/day |
|
|
Light-Duty Trucks - Cat |
13,779 |
15 |
206681.6 |
27557.55 |
4252.708 |
1508.852 |
475.088 |
4.556 |
18.226 |
|
|
Heavy Heavy Duty Diesel Truck |
4,593 |
15 |
68893.88 |
9185.85 |
1093.554 |
185.297 |
1397.318 |
48.602 |
109.355 |
|
|
Total Off-Site |
|
|
275575.5 |
|
5346.262 |
1694.149 |
1872.407 |
53.159 |
127.581 |
|
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SOURCE: |
CARB MVEI7G Program, 2001 South Coast Air Basin (summer), non-enhanced I/M, 35 mph |
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ASSUMPTIONS: |
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1 |
The hydrocarbon emission factors presented are Reactive Organic Gas (ROG) Efs. The ROG number is a |
|
|
combination of the ROG exhaust + running evaporative losses. |
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2 |
The PM10 emission factors are Total PM10 Efs. The PM10 Efs include the exhaust PM + Tire |
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|
Wear PM + Brake Wear PM. |
|
3 |
Emission factors from EMFAC7G (updated February 2000) were used. |
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4 |
All summertime emission factors were calculated at 75 F. |
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5 |
Emission factors assume 100% weighting to summertime fuel mix. |
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6 |
Emission factors include Running Exhaust, Running Evaporative Losses, and PM10 from tire wear and brake wear. |
7 |
Sulfur oxide as SO2 emissions were calculated by converting the total daily SO2 mass into grams |
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and then dividing by the total daily vehicle miles traveled. The total daily SO2 and total daily vehicle miles traveled |
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were obtained from the BURDEN output for each modeled year. |
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