transportation and air quality in the treasure valley
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Transportation and Air Transportation and Air Quality in the Treasure Quality in the Treasure
ValleyValley
Treasure Valley AirshedTreasure Valley Airshed
• Distance, Distance, topography, and topography, and weather.weather.
• Air pollution Air pollution distributed distributed throughout the throughout the entire airshed. entire airshed.
• Political Political boundaries are not boundaries are not air pollution air pollution boundaries.boundaries.
Brief History
• Historic Air Quality Problems
• Topography / Climatology
• Nonattainment for CO and PM10
• Attainment / Maintenance Area
• New Pollutants of Concern
Clean Air Act Implications
• PM10 and CO Maintenance Area
• Conformity (Budget)• Future Ozone or
PM2.5 Non-Attainment?
CAA/Federal HWY Funds
• CAA sanctions
• Transportation Conformity
Carbon Monoxide
Air Toxics
NOx
VOCs
Small Particulate Matter
Vehicles Pollute
• Carbon Monoxide is a colorless gas emitted from your vehicle’s tailpipe• Small Particulate (PM2.5) is made up of direct emissions of fine particles and particles that form from gases that come directly from your vehicle• Ozone is created by gases and vapors that are emitted by your vehicle and then formed in reactions that occur in strong sunlight and heat
•Toxic Air Pollutants – Benzene, 1,3 Butadiene, Formaldehyde, etc.
NOX-Annual Emissions9%
9%
49%
33%Industrial SourcesArea SourcesOn-Road SourcesNon-Road Sources
NOX-Episodic Emissions18%
12%
54%
16%
Industrial SourcesArea SourcesOn-Road SourcesNon-Road Sources
Source: Northern Ada County PM10 SIP Maintenance Plan and Redesignation Request/1999 Emission Inventory
VOC-Annual Emissions3%
69%
15%
13%
Industrial Sources
Area Sources
On-Road Sources
Non-Road Sources
VOC-Episodic Emissions4%
65%
23%
8%
Industrial Sources
Area Sources
On-Road Sources
Non-Road Sources
Source: Northern Ada County PM10 SIP Maintenance Plan and Redesignation Request/1999 Emission Inventory
Volatile Organic Compounds
Strong sunlightStrong sunlightStrong sunlightStrong sunlight
OzoneOzone
Volatile Organic Compounds
• industrial sources• biogenic sources• fuel sources
Nitrogen Oxides• transportation sources
Ozone: SummerOzone: SummerOzone: SummerOzone: Summer
OzoneOzone
Source: Idaho Department of Environmental Quality Monitoring Data
Ozone Trend 2001-2005(season from April - September)
0
10
20
30
40
50
60
70
80
90
100
Year
pa
rts
pe
r b
illio
n (
pb
b)
Boise
Middleton
2001 2002 2003 2004 2005
Federal Standard = 80ppb
Source: DEQ Monitoring Data
____________________________________________________________
Volatile Organic Compounds
• industrial sources• biogenic sources• fuel sources
Nitrogen/Sulfur Oxides & Ammonia
• motor vehicles• diesel fuel• livestock
Secondary Secondary PMPM2.52.5--chemically chemically
formedformed
Primary Primary PMPM2.52.5--directly directly
emittedemitted
PMPM2.52.5: Winter/Fires: Winter/Fires
National Standards
• Cleaner Fuels
• Tailpipe standards
Ada County VMT (millions)
Emissions (Tons)
0
2
4
6
8
10
12
2000 2010 2015 2020
VMTNOXVOC
NOX Reductions Due to Emissions Testing
Canyon County VIM Emissions Reductions: NOx
1.0%
5.5%
8.4%
15.8%25.6% 32.4%
500
1000
1500
2000
2500
3000
2003 2007 2010 2015 2020 2025
Year
Ta
ilpip
e N
Ox
Em
iss
ion
s
(to
ns
)
Without (TPY)
With IM (TPY)
AQ/Transportation Improvement Activities
• Clean Cities (Alternative Fuel Infrastructure)• COMPASS Board• Public Outreach / Alert Program • Highway Message Boards• Diesel Retrofit• Anti-idling• Interagency Consultation Process• TV Air Quality Council
Upcoming Studies
• Ozone 350K ITD
• PM2.5 400K ITD
• Air Toxics 500K EPA
The Treasure Valley Air Quality Council
"...to protect, preserve, and, where necessary, improve the quality of air in the Treasure Valley
while accommodating private, public and commercial interests."
The Council’s Responsibilities
• Compile all historical air quality studies in the Treasure Valley.
• Examine the air quality conditions in and around the Treasure Valley.
• Consult with the public and establish a non-voting citizens committee.
• Develop an air quality plan for the area and assist in implementation of that plan.
Responsibilities, cont.
• Conduct a public awareness campaign. • Recommend the adoption of statutes,
ordinances, policies and rules needed by governmental agencies to implement the plan.
• Assist local, state and federal agencies in the establishment of a multi-agency oversight capability to succeed the council.
• Council dissolved in 7 years.
AQ Bottomline
• PM10 and CO problems solved.
• Ozone and PM2.5 Pollutants of Concern.
• Ozone and PM2.5 complicated pollutants to understand and control.
• Proactive measures needed to protect Public Health and avoid future nonattainment.
The Recommendations
• “Treasure the Valley’s Air”: Enhanced Public Education on Air Quality and Establishment of Corporate Award
• OBD Vehicle Emission Testing in Ada and Canyon Counties
• Implement Stage 1 Vapor Recovery at Retail Gas Stations
• Uniform Ordinances for Local Air Quality Problems
• Regional Land Use, Planning and Zoning• Regional Air Quality Data and Coordination
What’s Next?
• After the close of the public-comment period, the Council will integrate citizens’ recommendations and present a draft final plan by January 1, 2007.
• A public hearing will be held within 30 days of the draft final plan release.
• The plan will then be submitted for review and approval by the Legislature.
TVAQC Website
Potential SolutionsPotential Solutions
• Cleaner Fuels / Alternative Cleaner Fuels / Alternative
• Cleaner Tail Pipe StandardsCleaner Tail Pipe Standards
• Truck Stop ElectrificationTruck Stop Electrification
• Land Use Planning/CoordinationLand Use Planning/Coordination
Potential SolutionsPotential Solutions• Stage 1 Vapor RecoveryStage 1 Vapor Recovery
• Enhanced Inspection ProgramEnhanced Inspection Program
• Anti-Idling OrdinancesAnti-Idling Ordinances
• Bus/Diesel Vehicle RetrofitsBus/Diesel Vehicle Retrofits
• Alternative Transit OptionsAlternative Transit Options
Transportation / AQ Summary• Ozone and PM2.5 are
pollutants of concern• Transportation
emissions are the largest pollution source
• New vehicles are getting cleaner
• BUT, More people, more cars, more miles traveled
• Stricter AQ Standards • Proactive Measures to
Avoid future problems
Questions?