8-Hour Ozone Nonattainment Designations
Dipan Shah Georgia EPD
8-HOUR OZONE SCHEDULE
May 2003 July 15, 2003 Late 2003 April 2004 April 2007 USEPA proposed implementation rule States provide designation recommendations USEPA final implementation rule USEPA signs final nonattainment designations Nonattainment area SIPs submitted to EPA (3 years from effective date) Range of attainment dates
2007-2021
PREVIOUSLY RECOMMENDED 8-HOUR OZONE AREAS (2000)
BOUNDARY FACTORS
• • • • • • • • • • • Local emissions/air quality Population density/urbanization Local/regional monitoring data Local emissions Traffic/commuting patterns Expected growth Meteorology Geography/topography Jurisdictional boundaries Level of control of emission sources Regional emission reductions
GEORGIA’S CRITERIA (DRAFT) - FACTORS CONSIDERED
• Whether the county contained a monitor showing a violation • Projected Population Density (2007) • Vehicles commuting into counties with monitors and/or core counties • Percent Urbanization
GEORGIA’S CRITERIA (DRAFT) - FACTORS CONSIDERED (CONTD.)
• Percent Population Growth from 1990 to 2000 • Projected Emissions Density for NOx and/or VOCs (2007) • Number of Registered Vehicles • Vehicle Miles Traveled (VMT)
AUGUSTA MSA (GA COUNTIES)
County
Columbia
Monitor Data > Standard?
N/A
# Criteria (Out of 7)
7
McDuffie
Richmond
N/A
Yes
1
6
RECOMMENDATIONS FOLLOW-UP
• EPD re-analyzing data • Seeking Input from Stakeholders
– Local Officials, General Public – GDOT, GRTA
CONCLUSIONS
• Georgia will have additional counties officially designated nonattainment starting in 2004 • Public health impacts • Economic growth impacts • Additional control measures needed beyond what’s already in place
IMPACTS OF NAA DESIGNATION
• New Source Review • Transportation Conformity • Attainment Modeling / Demonstration
Augusta’s Early Action Compact
Status & Milestones
EARLY ACTION COMPACT
• Designed to get cleaner air sooner • Gives Augusta (Locals) and EPD more flexibility to find solution • Defers mandatory nonattainment area requirements (such as new source review and transportation conformity)
AUGUSTA’S EAC SCHEDULE
June 15, 2003 Identify potential local emission reduction strategies
March 31, 2004
April 2004 December 31, 2004
Final Early Action Plan drafted
USEPA nonattainment designation Early Action Plan to USEPA
September 30, 2005 USEPA action on Plan December 31, 2005 Local/state controls implemented
June 30, 2006
December 31, 2007
Progress report
Attain standard
MILESTONES/PROGRESS
• Must be met • USEPA will check progress • Regular nonattainment requirements kick in if milestones not met
PRELIMINARY FINDINGS - FAQS
• Mobile sources and a few major point sources dominate NOx emissions • VOC emissions are predominately biogenic; mobile and area sources (esp. solvents) dominate anthropogenic component • Most of Augusta region is NOx-sensitive – Central Augusta may be VOC-sensitive
MOBILE SOURCE CONTROLS
• Cleaner fuels – Low-sulfur diesel – Reformulated gasoline • Inspection & Maintenance • Speed limit reduction or enforcement • Incentives for cleaner vehicles – Low emission & alternative fuel vehicles – Retrofit diesel vehicles with oxidation catalysts and/or particulate filters to reduce VOCs • Scrappage program for old, dirty cars
MOBILE SOURCE CONTROLS (CONT.)
• Transportation Control Measures: – Carpools/Vanpools/Ride Share – HOV Lanes – Mass Transit Improvements & Incentives – Bike & Pedestrian Facilities – Economic Incentives (Parking Cash-out, etc.) • Intelligent Transportation Systems • Traffic Improvements • Teleworking & Compressed Work Weeks
NON-ROAD EMISSION CONTROLS
• Construction & other heavy equipment – Apply 2007 On-road Diesel Vehicle Standards – Operating Restrictions – Cleaner Fuels
• Lawn & Garden Equipment – Incentives for electric lawnmowers – Operating restrictions during ozone alert days
• Airport Service Equipment – Switch to Electric or cleaner equipment – Cleaner Fuels
AREA SOURCE EMISSION CONTROLS
• Open & Managed Burning: – Ban or restrict during ozone season • Industrial Natural Gas Combustion – Low-NOx Burners, Other Controls • Residential Natural Gas Combustion – Low-NOx Water Heaters and Furnaces • Consumer and Commercial Products – Reformulation to Reduce VOCs
POINT SOURCE CONTROLS
• Power Plants, Chemical Plants, Paper Mills & Industrial Boilers • Add-on Control Devices – SCR for NOx – Thermal or Catalytic Oxidation for VOC • Combustion Modifications – Low-NOx Burners – Staged Combustion • Fuel Switching • Restrictions on Peaking/Peak-Shaving
EPD CONTACTS
• Ron Methier • Dipan Shah • Terry Johnson 404-363-7016 404-363-7014 404-363-7091
Preparing for the Augusta Early Action Compact
Daniel Cohan, Alper Unal, Yongtao Hu, Ted Russell Georgia Institute of Technology Fall-Line Air Quality Study May 2003
Cars & Trucks
Industry
Nitrogen Oxides (NOx)
SUNLIGHT
Ozone
Volatile Organic Compounds (VOCs)
Industry
BIOGENIC
Cars & Trucks
VOC Emissions in Augusta-Aiken MSA, Summer 2000
Point 2% Area 8% Mobile 9% Non-Road 1%
Biogenic 80%
TOTAL: 623 tpd
NOx Emissions in Augusta-Aiken MSA,
Summer 2000
Biogenic 2%
Non-Road 10%
Point 39% Mobile 44%
Area 4%
TOTAL: 123 tpd
NOx Emissions by County & Category
70 60 Biogenic Non-Road
NOx Emissions (tons per OSD)
50
Mobile Area
40
Point
30
20
10
0 Richmond Columbia Mc Duffie Aiken, SC Edgefield, SC
Mobile Source Control Options
Potential Strategy
Full “Atlanta” I&M (ASM + OBD tests) OBD-only I&M Heavy-duty vehicle I&M
Reduction, Costs, and Comments
Could reduce emissions up to ~6%. Cost to driver: $25 annual test fee; repair costs; wait time. 60% as effective, and much cheaper than full I&M; Would require change in state law. More potential control per tested vehicle, but many HDVs are registered elsewhere. Requires new law.
Transportation Control Each 1 million VMT ≈ 1 ton NOx (2007 light-duty vehicles) Measures (transit, vanpools, etc.) Typically cost 3-30 cents/VMT ($30k-$300k/ton) Travel Pricing
(parking, insurance, fees, etc)
Could be revenue-neutral. May require changes in state law. Would reduce fuel consumption and accidents, but increase drive times. Likely to be unpopular.
55 mph speed limits
Clean vehicle incentives
(tax credits, scrappage programs)
New vehicles are much cleaner than old. Typically expensive.
Reduces truck idling. Could be very cost-effective. Could be cost-effective.
Truck-stop electrification Signal Coordination
Largest Point Sources: Summer 2000
(Total: 48.2 tpd)
FACILITY
SCE&G Urquhart * International Paper
ST
SC GA
NOx (tpd)
13.9* (5.7) 10.0
SCE&G: SRS Area D
PCS Nitrogen DSM Chemicals Temple-Inland Forest
SC
GA GA GA
9.7
6.0 2.1 1.4
Westinghouse: SRS
Augusta Newsprint Avondale Mills: Stevens Occidental Chemical Avondale Mills: Sibley Kimberly-Clark, SC Pipeline Warrenville, Thermal Ceramics, Advanced Glassfiber Yarns
SC
GA SC GA GA Both
1.1
1.1 0.6 0.4 0.3 Each 0.2
* 2 of the 3 coal boilers at Urquhart have since been replaced with natural gas
Point Source Control Options
Facility
SCE&G Urquhart
Sources
3 coal boilers, each 75 MW
Potential Controls
Two boilers already switched to natural gas (~8 tpd reduction). Could consider similar switch or NOx controls for other boiler. NOx controls for boilers (LNB, SNCR, SCR, etc.)
International Paper
Nat. gas, wood-bark, and resid. oil boilers; Kraft Pulping
SCE&G SRS Area D
PCS Nitrogen DSM Chemicals
Coal & dist. oil boilers
Nitric Acid Absorber Tail Gas Natural gas boiler; Chem. Manufacturing
NOx controls for boilers
Extended absorption or catalytic reduction (incineration) of tail gas NOx controls for boiler
6
NOx Emissions (tons per OSD, Year 2000)
5.4
Non-Road: 12.4 tpd
Options:
- Encourage clean equipment (“clean contracting”, incentives) - Operating restrictions - Cleaner or alt fuel railroad locomotives and switchers
2.7 2.6
5
Area: 5.0 tpd
Options:
- Summer burning ban - Low-NOx burners for gas & coal combustion
4
3
2
1.6 1.3 0.8 0.5 0.5 0.3 0.3 0.1 0.4 0.3 0.3 0.4
1
0
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Ozone Isopleths
Nitrogen Oxides (NOx)
area of effective VOC control (most often highly populated areas) D B
Constant Ozone Concentration
NOx control effective (areas with high biogenics) High O3
C
A
Low O3
Volatile Organic Compounds (VOC)
Sensitivity to Augusta NOx: August 17, 2000
6 a.m.
Richmond Cty. Monitor
8 p.m. 2 p.m.
Sensitivity to 25% NOx reduction outside Augusta-Aiken MSA
Aug. 17, 2000
Preliminary Modeling: Richmond Cty. Ozone Monitor
0.130 0.120 0.110 0.100 0.090 0.080 0.070 0.060 0.050 0.040 0.030 0.020 0.010 0.000 -0.010 -0.020 -0.030
8/11/2000 8/12/2000 8/13/2000 8/14/2000 8/15/2000 8/16/2000 8/17/2000 8/18/2000
Ozone_Model Ozone_Obs NOX_AUG VOC_AUG NOX_Elsewhere
Conclusions
• Ozone in Augusta is typically NOx-limited. • Local NOx typically contributes 10-15 ppb to peak ozone. • Range of mobile, point source, and other options to be considered for NOx control.
8-hour Ozone Sensitivity at Richmond Cty. Monitor
0.110 0.105 0.100 0.095 0.090 0.085 0.080 0.075 0.070 0.065 0.060 0.055 0.050 0.045 0.040 0.035 0.030 0.025 0.020 0.015 0.010 0.005 0.000 -0.005 -0.010 -0.015 -0.020 11-Aug
Ozone_Mod Ozone_Obs NOX_AUG VOC_AUG NOX_Elsewhere
12-Aug
13-Aug
14-Aug
15-Aug
16-Aug
17-Aug
18-Aug