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Spatial analysis of ozone exceedances and its precursor emissions in HG area

Spatial analysis of ozone exceedances and its precursor emissions in HG area. Junsang Nam 11/18/03. Ozone Exceedances. Ozone Formation HG area (TCEQ Reg. 12) 44 monitoring stations Annual ozone exceedances from 1999 to 2003. Precursor Emission - VOC. Point Sources

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Spatial analysis of ozone exceedances and its precursor emissions in HG area

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  1. Spatial analysis of ozone exceedances and its precursor emissions in HG area Junsang Nam 11/18/03

  2. Ozone Exceedances • Ozone Formation • HG area (TCEQ Reg. 12) • 44 monitoring stations • Annual ozone exceedances from 1999 to 2003

  3. Precursor Emission - VOC • Point Sources - PSDB (Ethene, Propene, Isobutane, Trans-2-butene, Cis-2-butene) • Biogenic Sources - Vegetation Source : TCEQ

  4. Precursor Emission - NOx • Point Sources - PSDB - 4,317 sources • On-road mobile - Major highways Source : TCEQ

  5. TX general land office NAD 83 Albers equal area HG area map

  6. Ozone Exceedances - 2003 • 44 monitoring stations • Ordinary kriging in Geostatistical Analyst

  7. VOC – Point sources • Ethene • 2,003 point sources (Stack) • Concentrated in the Ship Channel area • Tons/yr

  8. VOC - Biogenic • 1,533 objects • 47 vegetation code • 11 lumped code • Large forest areas right north of the Ship Channel area

  9. NOx – Point Sources • 4,317 point sources (Stack) • Concentrated in the Ship Channel area • Tons/yr

  10. Future Work • Ozone exceedances – 1999, 2000, 2001, and 2002 • VOC (PSDB) – Propene, Isobutane, Trans-2-butene, and Cis-2-butene • NOx – On-road mobile • Correlation analysis of ozone exceedances and precursor emissions

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