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Determine Control Profile for: Feather River AQMD Rule 3.17 (Wood Heating Devices)

1 Determine baseline emissions without regulation. 2005 PM2.5 Emissions (tons/yr)

Sutter Yuba Total

Fireplaces 47 35 81

Wood Stoves 162 120 282

Subtotal 209 154 363

2005 Total Number of Housing Units 31,175 24,550 55,725

Emissions per House (tons/house/yr) 0.007 0.006 0.007

2 Determine growth in housing units. Total Number of Housing Units

[Note: 2020 data were interpolated.] Sutter Yuba Total

2005 31,175 24,550 55,725

2009 33,681 28,016 61,697

2010 33,772 28,244 62,016

2020 38,899 37,312 76,211

2035 46,589 50,915 97,504

2009 8% 14% 11%

2010 8% 15% 11%

2020 25% 52% 37%

2035 49% 107% 75%

2010 91 228 319

2020 5,218 9,296 14,514

2035 12,908 22,899 35,807

3 Determine baseline emissions from ALL housing units, WITHOUT regulation.

PM2.5 Emissions (tons/yr)

 [2009 emissions] = [2005 emissions]*[Growth from 2005 to 2009] Sutter Yuba Total

2009 226 176 402

2010 226 178 404

2020 261 235 495

2035 312 320 632

4 Determine baseline emissions from INCREASED housing units only, WITHOUT regulation

PM2.5 Emissions (tons/yr)

 [2010 emissions] = [Emissions per house]*[2010 Increase in housing units] Sutter Yuba Total

2010 1 1 2

2020 35 58 93

2035 86 144 231

5 PM2.5 Emission Factors EF (lb PM2.5/ton)

Fireplace 22.72

Phase II Catalytic 19.64

Phase II Non-Catalytic 14.06

6 Determine relative emission levels for different devices.

[Relative emissions level] = [Phase II Catalytic EF]/[Fireplace EF]

[Phase II Catalytic]/[Fireplace] 86%

[Phase II Non-Catalytic]/[Fireplace] 62%

Average 74%

Growth % in Housing Units Relative 

to 2005 Baseline Inventory

Increase in Housing Units After 

2009 Regulation

Relative Emissions Level

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7 Determine emissions from INCREASED housing units only, AFTER regulation.

PM2.5 Emissions (tons/yr)

 [2010 emissions with reg.] = [2010 emissions w/o reg.]*[Relative emission level] Sutter Yuba Total

2010 0 1 2

2020 26 43 69

2035 64 107 171

8 Determine total emissions from ALL housing units, AFTER regulation.

PM2.5 Emissions (tons/yr)

Sutter Yuba Total

2010 226 177 403

2020 251 220 471

2035 290 283 573

9 Determine annual emission reductions, AFTER regulation.

PM2.5 Emission Reductions (tpy)

Sutter Yuba Total

2010 0.2 0.4 1

2020 9 15 24

2035 22 37 60

10 Determine Control Efficiency (CE). Control Efficiency

CE = [Emission reductions]/[Total emissions w/o reg.] Sutter Yuba

2010 0.1% 0.2%

2020 3.5% 6.4%

2035 7.2% 11.6%

11 Determine the Rule Penetration (RP).

Default 1

12 Determine the Rule Effectiveness (RE).

Default 1

13 Determine the Control Level (CL). Control Level

CL = 1 - (CE * RP * RE) Sutter Yuba

2010 0.999 0.998

2020 0.965 0.936

2035 0.928 0.884

References:

1. Housing unit data (2005 - 2010) obtained from the California Department of Finance (DOF).

State of California, Department of Finance, E-5 Population and Housing Estimates for Cities, Counties and the State, 

2001-2010, with 2000 Benchmark. Sacramento, California, May 2010.

http://www.dof.ca.gov/research/demographic/reports/estimates/e-5/2001-10/documents/E-5_2010.xls

2. Housing unit projections (2035) obtained from the Sacramento Area Council of Governments (SACOG).

http://www.sacog.org/demographics/projections/files/2035_projections_010507.xls

3. 2005 emissions estimates prepared by ARB/Monique Davis.

4. Fireplace emission factor obtained from:

E.H. Pechan & Associates, Inc. "Documentation for the Final 2002 Nonpoint Sector (Feb. 06 Version) National 

Emission Inventory for Criteria and Hazardous Air Pollutants", Appendix A, Tables 4 - 10; prepared for U.S. EPA, 

Contract No. 68-D-02-063; July 2006; 

ftp://ftp.epa.gov/EmisInventory/2002finalnei/documentation/nonpoint/2002nei_final_nonpoint_documentation0206version.pdf

Wood Stove emission factors (Phase II Catalytic & Phase II Non-Catalytic) obtained from:

United States Environmental Protection Agency; AP-42, 5th Edition, Compilation of Air Pollutant Emission Factors, 

Volume 1: Stationary Point and Area Sources, Sections 1.9 and 1.10; October 1996;

http://www.epa.gov/ttn/chief/ap42/ch01/final/c01s09.pdf; http://www.epa.gov/ttn/chief/ap42/ch01/final/c01s10.pdf.

Note: For the National Emission Inventory (NEI), U.S. EPA used the same emission factor for PM10 and PM2.5. 

To be consistent with ARB's speciation profiles, PM10 emission factors were adjusted to reflect the following size ratio:

[PM2.5 EF] = [PM10 EF]*[PM2.5 size fraction]/[PM10 size fraction] = [PM10 EF]*[0.9001]/[0.935] = 

 [Emission reductions] = [Total emissions w/o reg.] - [Total emissions after reg.]

 [Total emissions after reg.] =

 [2009 emissions w/o reg.] + [Emissions from increased housing units after reg.]

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Comparison from ARB Estimates and FRAQMD Rule 3.17 Staff Report (Sept. 2009)

FRAQMD ARB

2035 PM2.5 Emissions (tons/yr)

Baseline emissions from INCREASED housing 

units only, WITHOUT regulation: Sutter Yuba Sutter Yuba

(page 11 in staff report) 65 114 86 144

(Appendix C in staff report) 169 300

Estimated emissions per new housing unit with 

compliant device, AFTER regulation: Sutter Yuba Sutter Yuba

Catalytic 0.011 0.011

Non-Catalytic 0.011 0.011

Average 0.005 0.005

2035 PM2.5 Emissions (tons/yr)

Emissions from INCREASED housing units only, 

AFTER regulation: Sutter Yuba Sutter Yuba

Catalytic 146 260

Non-Catalytic 141 249

Average 64 107

2035 Emission Reductions (tpy)

Emission Reductions Sutter Yuba Sutter Yuba

Catalytic 23 41

Non-Catalytic 29 51

Average 22 37

Compliant Emission Rate 

(tons PM2.5/home/yr)
Date: 7/15/2010

Prepared by: ARB/Monique Davis

Background: Feather River AQMD revised Rule 3.17 (Wood Heating Devices) on 10/5/2009.

Effective 10/5/2009, wood heating devices that are installed in new housing units

must be EPA-certified or meet other efficiency/operational standards.

This spreadsheet was developed to estimate the emission reduction benefits

from this rule and the associated "Control Profile" after rule implementation.