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2003 Air Quality Management Plan (AQMP)

2003 Air Quality Management Plan

The South Coast Air Quality Management District Governing Board adopted the 2003 Air Quality Management Plan (AQMP) on August 1, 2003.  The 2003 AQMP updates the attainment demonstration for the federal standards for ozone and particulate matter (PM10); replaces the 1997 attainment demonstration for the federal carbon monoxide (CO) standard and provides a basis for a maintenance plan for CO for the future; and updates the maintenance plan for the federal nitrogen dioxide (NO2) standard that the South Coast Air Basin (Basin) has met since 1992.

This revision to the AQMP also addresses several state and federal planning requirements and incorporates significant new scientific data, primarily in the form of updated emissions inventories, ambient measurements, new meteorological episodes and new air quality modeling tools.  The 2003 AQMP is consistent with and builds upon the approaches taken in the 1997 AQMP and the 1999 Amendments to the Ozone SIP for the South Coast Air Basin for the attainment of the federal ozone air quality standard.  However, this revision points to the urgent need for additional emission reductions (beyond those incorporated in the 1997/99 Plan) from all sources, specifically those under the jurisdiction of the California Air Resources Board and the U.S. Environmental Protection Agency which account for approximately 80 percent of the ozone precursor emissions in the Basin.

 For information about the 2003 AQMP, contact Joe Cassmassi

Format of This Document
This document is organized into ten chapters, each addressing a specific topic.  Each of the chapters are summarized below.
Each document (Chapter or Appendix) is a separate PDF file. The size of the file is shown next to each link. Some of the documents are very large (greater than 1mb)    If you do not have Acrobat Reader, you can download it free by clicking the icon below.

  Table of Contents (91 Kb  )
Note: The Table of Contents shows the contents of each chapter, but is not hyperlinked
  Executive Summary (243 Kb  )
1 Introduction  (280 Kb  )
2 Air Quality and Health Effects

Chapter 2, “Air Quality and Health Effects,” discusses the Basin’s air quality in comparison with the federal and state air pollution standards and presents summary information on health effects of various pollutants.

3 Base Year and Future Emissions 
  Chapter 3, “Base Year and Future Emissions,” summarizes recent updates to the emissions inventories, estimates current emissions by source and pollutant, and projects future emissions with and without controls.
4 AQMP Control Strategy
  Chapter 4, “AQMP Control Strategy,” presents the attainment strategies.
5 Future Air Quality

Chapter 5, “Future Air Quality,” describes the modeling approach used in the AQMP and summarizes the Basin’s future air quality projections with and without controls.

6 Clean Air Act Requirements
  Chapter 6, “Clean Air Act Requirements,” discusses specific federal and state requirements as they pertain to the 2003 AQMP and demonstrates compliance with the requirements.
7 Implementation

Chapter 7, “Implementation,” presents the implementation schedule of the various control measures and delineates each agency’s area of responsibility.

8 Future Air Quality – Desert Nonattainment Area

Chapter 8, “Future Air Quality - Desert Nonattainment Areas,” demonstrates compliance with the Federal Clean Air Act requirements pertaining to the Coachella Valley.

9 Contingency Measures
  Chapter 9, “Contingency Measures,” presents contingency measures as required by the federal CAA .
10 Looking Beyond Current Requirements
  Chapter 10, “Looking Beyond Current Requirements”, discusses uncertainties associated with the technical analysis provided in the AQMP; and presents a preliminary analysis regarding the new Federal PM2.5 and 8-hour ozone ambient air quality standards.



Health Effects (228 Kb  )


Current Air Quality (1.3 Mb  )

III Base and Future Year Emission Inventories
  Appendix III main document (509 kb  )
  Attachment A,
Annual Average Emissions by Major Source Category (160 kb)
  Attachment B,
Summer Planning Emissions by Major Source Category (144 kb)
  Attachment C,
Winter  Planning Emissions by Major Source Category (132 kb)
  Attachment D,
Top 300 SCAB VOC and NOX Producers in 1997 (93  kb)
  Attachment E
On-Road Emissions by Vehicle Category   (102 Kb)
  Attachment F,
Emissions from Diesel Fuel, by Major Source Category (70 Kb)
IV-A District’s Stationary and Mobile Source Control Measures   
IV-B Proposed State and Federal Strategy for the California State Implementation Plan

          Note: this link will take you to the California Air Resources
        Board (CARB) website
IV-C Regional Transportation Strategy and  Control Measures
V Modeling and Attainment Demonstrations
  Appendix V main document  (3.9 Mb  )
Appendix A to Appendix V , UAM Base Year Model Performance Statistics and Graphical Evaluation (5.6 Mb) .
Attachments 1-6 (600 Kb  )
(Modeling Protocol, Expert Panel  Modeling Critiques, Mid-Course Modeling Reviews, CEPA Source Level Emissions Reduction Summaries for 2006 & 2010, including annual and planning inventories)
Attachment 7CalGrid Ozone Simulation (983 Kb  )

Other Important AQMP Documents

     Socioeconomic Report:
  • Appendices A-D (505 Kb  )
    (Assessment Methodology, The REMI Model, Adjustment of the REMI control Forecast, Glossary)

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