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Status of 8-Hour Ozone NAAQS Program in Clark County. Presentation to Air Quality Forum May 10, 2005. Background . EPA issued f inal nonattainment designations for 8-hour ozone NAAQS on April 30, 2004. Effective date of designation was June 15, 2004.

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Status of 8 hour ozone naaqs program in clark county

Status of 8-Hour Ozone NAAQS Program in Clark County

Presentation to Air Quality Forum

May 10, 2005


Background
Background

  • EPA issued final nonattainment designations for 8-hour ozone NAAQS on April 30, 2004.

  • Effective date of designation was June 15, 2004.

  • Governor requested delay of effective date.

  • EPA permitted deferral of effective date to September 13, 2004.


Ozone sip development timeline

  • Data Collection (May 2004 thru 2005)

  • Monitoring data

  • Emission inventory

  • Meteorological data

June 2007 SIP

Submittal

2005

2006

2004

2007

Assessment of emission reduction strategies

(May 2004 –2005)

Designated Nonattainment

April 15, 2004

  • Adoption/Implementation Phase

  • Demonstration of attainment

  • Adoption of rules implementing emission reduction strategies

  • Public involvement and formal hearing process

  • Preparation of SIP submittal package

Draft Plan

May 2004-2005

Ozone SIP Development Timeline


Las vegas nonattainment area
Las Vegas Nonattainment Area

EPA designated the following hydrographic areas as the ozone nonattainment area for Las Vegas:

  • Ivanpah Valley (hydrographic areas 164A, 164B, 165, and 166)

  • Eldorado Valley (hydrographic area 167)

  • Las Vegas Valley (hydrographic area 212)

  • Colorado River Valley (hydrographic area 213)

  • Paiute Valley (hydrographic area 214)

  • Apex Valley (hydrographic areas 216 and 217)

  • A portion of Moapa Valley (hydrographic area 218)


Clark county ozone studies
Clark County Ozone Studies

  • Ozone Characterization Study

  • Non-road Engine Inventory

  • Volatile Organic Compounds Emitted from Use of Consumer Products

  • Biogenic Emissions Inventory

  • Mobile Source Impact Study

  • Ozone Monitoring Network Saturation Study

  • Establishing Upper Air Wind Measurements

  • Comprehensive Emissions Inventory of Ozone Precursors

  • Evaluation of Potential Control Measures

  • NOy and VOC Ambient Air Sampling


Clark county 2005 ozone studies
Clark County 2005 Ozone Studies

Ozone Characterization Study

Contractor – Technical & Business Systems, Inc.

Purpose:

Characterize ozone and its precursors.

Develop procedure for forecasting high ozone days.

Status:

Staff reviewing draft report; enhancing ozone monitoring network based on findings to date.

Will draft final report after receiving 2005 ozone season data to validate forecasting technique for high ozone days.


Clark County 2005 Ozone Studies

Biogenic Emission Inventory Study

  • Contractor – Environmental Quality Management, Inc.

  • Purpose:

    • Conduct biogenic emission inventory to quantify biogenic emissions within Clark County.

  • Status:

    • Completed field survey of urban and rural ground cover.

    • Began updating biogenic model to include local data before quantifying emissions.

    • Final report with results by year end.


Clark County 2005 Ozone Studies

Establishing Upper Air Wind Measurements in Clark County

  • Contractor – Desert Research Institute

  • Purpose:

    • Establish upper air wind measurements in Clark County.

    • Obtain data on ozone transport issues.

  • Status:

    • 4 SODARS and 1 radar wind profiler delivered this week.

    • Completed site selection and obtained approvals.

    • Will collect data as soon as equipment is operational.


Volatile Organic Compounds Emitted from Use of Consumer Products

Contractor – MACTEC Engineering and Consulting

Purpose:

Gather information on VOCs emitted from use of selected consumer product categories.

Assess contribution to total VOC levels in Clark County.

Identify appropriate, cost-effective control measures.

Status:

Completed all field surveys but one and began compiling data.

Expect to complete final report by September 30.

Clark County 2005 Ozone Studies


Clark County 2005 Ozone Studies

Mobile Source Impact Study

  • Contractor – ENVIRON International Corporation

  • Purpose:

    • Develop ozone precursor emissions inventories for the Clark County nonattainment area that include all on-road mobile sources.


Clark County 2005 Ozone Studies

NOy and VOC Ambient Air Sampling

  • Contractor – Desert Research Institute

  • Purpose:

    • Evaluate reactive component of oxides of nitrogen, excluding NO and NO2.

    • Conduct ambient monitoring for VOCs.


Clark County 2005 Ozone Studies

Ozone Monitoring Network Saturation Study

  • Contractor –Technical & Business Systems, Inc.

  • Purpose:

    • Evaluate monitoring network and expand to measure highest ozonelevels.


Questions
Questions?

Please contact:

Department of Air Quality and Environmental Management (DAQEM)

(702) 455-5942


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