Common Emission Factors
The following list of emission factors and equations may be helpful in estimating emissions from emission units such as boilers, incinerators, grain facilities, chrome plating equipment, dry cleaning facilities, sterilizing equipment, and storage tanks. The factors contained herein are suggested only, and are not meant to supersede any previous factors established by permits or other references.
NATURAL GAS FIRED BOILERS:
| 100 million BTU/hr |
CO: |
84 lb/million cubic feet burned |
|
CO2: |
120,000 lb/million cubic feet burned |
|
METHANE: |
2.3 lb/million cubic feet burned |
|
N2O: |
2.2 lb/million cubic feet burned |
|
NH3: |
3.2 lb/million cubic feet burned |
|
NOX: |
280 lb/million cubic feet burned |
|
PART: |
7.6 lb/million cubic feet burned |
|
PM10: |
7.6 lb/million cubic feet burned |
|
SO2: |
0.6 lb/million cubic feet burned |
|
VOM: |
5.5 lb/million cubic feet burned |
<100 million BTU/hr |
CO: |
84 lb/million cubic feet burned |
|
CO2: |
120,000 lb/million cubic feet burned |
|
METHANE: |
2.3 lb/million cubic feet burned |
|
N2O: |
2.2 lb/million cubic feet burned |
|
NH3: |
3.2 lb/million cubic feet burned |
|
NOX: |
100 lb/million cubic feet burned |
|
PART: |
7.6 lb/million cubic feet burned |
|
PM10: |
7.6 lb/million cubic feet burned |
|
SO2: |
0.6 lb/million cubic feet burned |
|
VOM: |
5.5 lb/million cubic feet burned |
FUEL OIL-FIRED BOILERS
Fuel Oil #1 or #2 |
CO: |
5 lb/1000 gallons burned |
|
CO2: |
22,300 lb/1000 gallons burned |
|
METHANE: |
0.052 lb/1000 gallons burned |
|
N2O: |
0.11 lb/1000 gallons burned |
|
NH3: |
0.8 lb/1000 gallons burned |
|
NOX: |
20 lb/1000 gallons burned |
|
PART: |
2 lb/1000 gallons burned |
|
PM10: |
1 lb/1000 gallons burned |
|
PM2.5: |
0.25 lb/1000 gallons burned |
|
SO2: |
142(S) lb/1000 gallons burned |
|
VOM: |
0.252 lb/1000 gallons burned |
Fuel Oil #4 |
CO: |
5 lb/1000 gallons burned |
|
CO2: |
22,300 lb/1000 gallons burned |
|
METHANE: |
0.28 lb/1000 gallons burned |
|
N2O: |
0.11 lb/1000 gallons burned |
|
NH3: |
0.8 lb/1000 gallons burned |
|
NOX: |
47 lb/1000 gallons burned |
|
PART: |
7 lb/1000 gallons burned |
|
PM10: |
6.3 lb/1000 gallons burned |
|
PM2.5: |
3.9 lb/1000 gallons burned |
|
SO2: |
150(S) lb/1000 gallons burned |
|
VOM: |
1.04 lb/1000 gallons burned |
|
|
|
| Fuel Oil #5 |
CO: |
5 lb/1000 gallons burned |
|
CO2: |
24,400 lb/1000 gallons burned |
|
METHANE: |
1 lb/1000 gallons burned |
|
N2O: |
0.26 lb/1000 gallons burned |
| |
NH3: |
0.8 lb/1000 gallons burned |
|
NOX: |
47 lb/1000 gallons burned |
|
PART: |
10 lb/1000 gallons burned |
|
PM10: |
8.6 lb/1000 gallons burned |
|
SO2: |
157(S) lb/1000 gallons burned |
|
VOM: |
1.04 lb/1000 gallons burned |
|
|
|
Fuel Oil #6 |
CO: |
5 lb/1000 gallons burned |
|
CO2: |
25,000 lb/1000 gallons burned |
|
METHANE: |
1 lb/1000 gallons burned |
|
N2O: |
0.53 lb/1000 gallons burned |
|
NH3: |
0.8 lb/1000 gallons burned |
|
NOX |
47 lb/1000 gallons burned |
|
PART: |
9.19(S) + 3.22 lb/1000 gallons burned |
|
PM10: |
9.19(S) + 3.22 lb/1000 gallons burned |
|
PM2.5: |
4.67(A) + 3.22 lb/1000 gallons burned |
|
SO2: |
157(S) lb/1000 gallons burned |
|
VOM: |
0.28 lb/1000 gallons burned |
S = weight percentage of sulfur in oil
A = percentage of ash in oil
OTHER FUELS
Butane |
CO: |
3.6 lb/1000 gallons burned |
|
CO2: |
14,300 lb/1000 gallons burned |
|
METHANE: |
0.2 lb/1000 gallons burned |
|
N2O: |
0.9 lb/1000 gallons burned |
|
NOX: |
21 lb/1000 gallons burned |
|
PART: |
0.6 lb/1000 gallons burned |
|
PM10: |
0.6 lb/1000 gallons burned |
|
SO2: |
0.09(S) lb/1000 gallons burned |
|
VOM: |
0.6 lb/1000 gallons burned |
Propane |
CO: |
3.2 lb/1000 gallons burned |
|
CO2: |
12,500 lb/1000 gallons burned |
|
METHANE: |
0.2 lb/1000 gallons burned |
|
N2O: |
0.9 lb/1000 gallons burned |
|
NOX: |
19 lb/1000 gallons burned |
|
PART: |
0.6 lb/1000 gallons burned |
|
PM10: |
0.6 lb/1000 gallons burned |
|
SO2: |
0.1(S) lb/1000 gallons burned |
|
VOM: |
0.6 lb/1000 gallons burned |
S = Sulfur content expressed in grain/100 feet3
INCINERATORS
Multiple Chamber |
CO: |
10 lb/ton burned |
|
HCL |
10 lb/ton burned |
|
NOX: |
3.0 lb/ton burned |
|
PART: |
7.0 lb/ton burned |
|
PM10: |
4.7 lb/ton burned |
|
SO2: |
2.5 lb/ton burned |
|
VOM: |
3.0 lb/ton burned |
|
|
|
Pathological |
CO: |
2.95 lb/ton burned |
|
CO2: |
9150 lb/ton burned |
|
HCL: |
1.2 lb/ton burned |
|
NOX: |
3.56 lb/ton burned |
|
PART: |
4.67 lb/ton burned |
|
PM10: |
3.02 lb/ton burned |
|
PM2.5: |
2.02 lb/ton burned |
|
SO2: |
2.17 lb/ton burned |
|
VOM: |
0.299 lb/ton burned |
|
|
|
Medical Waste |
CD: |
0.0054 lb/ton burned |
|
CO: |
2.95 lb/ton burned |
|
Dioxins/Furans: |
0.0000928 lb/ton burned |
|
HCL: |
33.5 lb/ton burned |
|
Lead: |
0.0728 lb/ton burned |
|
Mercury: |
0.107 lb/ton burned |
|
NOX: |
3.56 lb/ton burned |
|
PART: |
4.67 lb/ton burned |
|
PM10: |
3.04 lb/ton burned |
|
PM2.5: |
2.02 lb/ton burned |
|
SO2: |
2.17 lb/ton burned |
|
VOM: |
0.299 lb/ton burned |
DRY CLEANERS, DEGREASERS USING VOLATILE ORGANIC SOLVENTS
(Gallons Solvent – Gallons Recycled) x Weight per Gallon (lb/gal) Tons VOM per year
2,000
CHROME PLATING EMISSION FACTORS
Hard Chrome Plating |
CR6: |
1.71 x 10-5 lb/hr/amp* per hour |
|
PART: |
3.57 x 10-5 lb/hr/amp* per hour |
|
PM10: |
3.57 x 10-5 lb/hr/amp* per hour |
|
|
|
Decorative Chrome Plating |
CR6: |
4.71 x 10-6 lb/hr/amp* per hour |
|
PART: |
9.86 x 10-6 lb/hr/amp* per hour |
|
PM10: |
9.86 x 10-6 lb/hr/amp* per hour |
|
|
|
Anodizing/Electropolishing |
CR6: |
2.86 x 10-4 lb/hr/ft2** per hour |
|
PART: |
6.00 x 10-4 lb/hr/ft2** per hour |
|
PM10: |
6.00 x 10-4 lb/hr/ft2** per hour |
*Average daily rectifier setting in amps
**Surface area of bath in square feet
|
