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Air Quality Monitoring Issues. WESTAR Fall Business Meeting Millennium Harvest House Boulder, Colorado September 17-19, 2007 Bruce Louks Idaho Department of Environmental Quality. Ozone Monitoring Issues under Revised NAAQS. Ozone NAAQS NPRM……

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Air quality monitoring issues
Air Quality Monitoring Issues

WESTAR Fall Business Meeting

Millennium Harvest House

Boulder, Colorado

September 17-19, 2007

Bruce Louks

Idaho Department of Environmental Quality

Ozone monitoring issues under revised naaqs
Ozone Monitoring Issues under Revised NAAQS

  • Ozone NAAQS NPRM……

    • Ozone seasons will stay the same. Longer seasons will require rulemaking.

    • Does not affect existing QA/QC requirements

    • EPA may make specific proposals regarding monitoring requirements later

    • MSA’s with <350,000 will still not be required to monitor

    • Assuming NAAQS of 0.070 ppm, about 70 areas will be >85% which affects number of required monitors (actually 65 already have, 5 more will be added)

Secondary ozone naaqs
Secondary Ozone NAAQS

  • CASAC supported using a cumulative seasonal indicator called W126

    • Aimed at reducing forest and crop damage

    • Highest 3 consecutive months of ozone season

    • 12 hours per day, weighted by concentration

    • CASAC recommended a range of 7 to 15 ppm-hours

  • EPA proposes W126 range of 7-21 ppm hrs, or alternately, the secondary standard should equal the primary standard

  • Rural SLAMS, NPS and possibly CASTNET ozone monitors could support designations in near term, but only in spots

Coming next lead naaqs
Coming Next: Lead NAAQS

  • Final Rule due September 1, 2008

  • NAAQS may be revised enough to make 10-30% existing monitors show violations

  • Monitoring issues with the rule:

    • Existing network is spotty. How many more monitors are needed? Where?

    • Monitoring method….hi-vol TSP or lo-vol TSP or PM10? How?

    • Sampling frequency

    • QA – collocation, flow checks, etc.

National ambient air monitoring strategy
National Ambient Air Monitoring Strategy

  • EPA plans to update for consistency with PM NAAQS, final monitoring rule

  • EPA intends to finalize internal document by end of October

  • NACAA will have opportunity to comment

  • EPA will sign document at appropriate senior level

  • Hopefully in time to influence 2009 grant guidance

Steering committee comments on monitoring strategy proposal
Steering Committee Comments on Monitoring Strategy Proposal

  • Original intent of strategy document that S/L/T NAAQS and Air Toxics networks leverage other networks (IMPROVE, Castnet), not the other way around

  • Make funding visible in document

  • Consider new approach for defining urban/rural

  • Broaden health component as data client

2008 president s budget
2008 President’s Budget

  • Same as 2007 proposal

  • Cuts compared to FY2006

    • ~ $15M cut from general 105 STAG

    • $17M cut from PM2.5 STAG, remaining $25.5M moved to 105

  • About $10M for air toxics monitoring

    • ~ 50% of this will fund community-scale projects from the recent solicitation

    • Guidance says EPA will use 103 authority for all FY2008 air toxics monitoring STAG funds.

Fy08 monitoring funds
FY08 Monitoring Funds

  • Both House/Senate looking to fund $220M (2006 enacted) plus diesel retrofits

  • Rescission likely…… much?

  • Retains 103…..not clear how much

  • EPA recommends we take a critical look at moving PM2.5 monitoring under Section 105

    • States will have to match

    • Section 103 could then be for other programs, e.g. air toxics, mercury

Fy 2008 grant guidance
FY 2008 Grant Guidance

  • Defines outcome for 2007

    • Regional allocations

    • Common end date of March 31 for PM2.5

    • Common end date of June 30, 2008 for NATTS

  • Explains President’s 2008 budget

  • Air toxics STAG will be spent as 103

  • Announces plan to cut IMPROVE 15%, unless NACAA advises otherwise

  • Cites STAG reallocation process

  • Reaffirms priority for required monitoring.

Impacts of level funding
Impacts of Level Funding

  • Rule changes impact monitoring resources

  • What is an adequate network?

    • Imbalance between minimum national network requirements and actual operating networks

    • Reductions in non-essential monitoring could free up substantial $$ and can be applied for new initiatives

  • Strategy Document needs to drive this realignment

2008 issues still to settle
2008 Issues Still to Settle

  • Regional and State allocation framework

    • Assessment of current needs in light of PM2.5 and ozone NAAQS revision, etc.

    • Pro rata allocation based on 2007 pattern but adjusted to a common grant period.


    • How much to cut IMPROVE vs. State/Local grants…..15%? NACAA is internalizing this discussion and will provide EPA with a recommendation.

    • Which sites to cut in Class I areas?

  • How much EPA versus grantee control?

Atmospheric mercury initiative
Atmospheric Mercury Initiative

  • EPA is leading the planning effort with NADP to establish a new network for monitoring atmospheric mercury species

  • Scientific and policy communities have shown strong support for this network

    • Data needed for model evaluation and for assessment of Hg control programs

  • The goals of this atmospheric mercury initiative are to:

    • Build a data set for analyzing spatial and temporal trends

    • Provide data for evaluating models and assessing source- receptor relationships

    • Facilitate the calculation of wet, dry, and total deposition

Update on technical aspects
Update on Technical Aspects

  • Emphasis on ensuring this is an inclusive, multi-stakeholder initiative through multiple meetings and collaboration

  • Developing standard operating procedures for atmospheric Hg species (initial SOPs Summer 2007)

  • NADP technical workshop – Chicago, IL – September 2007

    • Experts operating Tekran systems

    • Consensus on the automated Hg monitoring SOP among Hg monitoring experts

    • NACAA will send 3 experts

  • Developing capacity to electronically collect and share atmospheric Hg data from 3 initial monitoring sites

Funding opportunities
Funding Opportunities

  • This is a voluntary effort looking for partners to collaborate

  • Limited EPA funding available this year to support existing speciated ambient mercury sites participating in the monitoring effort

    • Limited funding designated for site operations and/or to upgrade equipment (e.g., for how a site can interface with the network)

  • Near-term plan for a competitive acquisition process (i.e., contracts)

    • An efficient way to make a small amount of resources available for monitoring services and existing data collection efforts

  • Patchwork funding expected over the next couple of years

Castnet budget in the near future

25% Reduction in FY08 EPA CASTNET budget

Translates to 8-10 sites shutting down

Continuing reduction at NPS

Anticipate shutting down 8 sites over 5 years

Impact on Funding to NADP

Reduce Site Audit Program

Eliminate support for 10 sites

For 2008, 86 → ~69 sites

45 EPA sites

24 NPS sites

Facing 280K per yr Ozone QA cost

Conversion may be delayed

CASTNET Budget in the Near Future

Proposed nadp passive ammonia network

Purpose: To determine actual costs of network, sampling variability and other considerations

Bi-Weekly measurements

Core network of 10 EPA-sponsored sites

$7700 per site

QAPP & SOPs to be prepared

Total program cost $225K over two years

Additional sites may be added at $5k/site

Proposed NADP Passive Ammonia Network

Other projects
Other Projects variability and other considerations

  • $100K for PAMS review

  • Addition of PAH to NATTS

  • Addition of 3-5 sites to NATTS

  • Carbon channel changeout for PM2.5 speciation network nearly complete

Summary variability and other considerations

  • There is not enough money to go around to support all monitoring initiatives

  • There are efforts underway to integrate monitoring networks to meet common objectives

  • There will be more competition for resources and there will be cuts and reductions in levels of effort, somewhere…..

  • Monitoring costs need to be updated for the next ICR