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Air Quality Assessment in Populated Area, Houston

Air Quality Assessment in Populated Area, Houston. Focused on NOx & SO2 Eon S. Lee. Order. Outdoor Pollution Source Common Pollutants in Urban Area Population & NOx Distribution Annual NOx Concentration Annual SO 2 Concentration Annual NOx & SO 2 Concentration Conclusion.

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Air Quality Assessment in Populated Area, Houston

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  1. Air Quality Assessment in Populated Area, Houston Focused on NOx & SO2 Eon S. Lee

  2. Order • Outdoor Pollution Source • Common Pollutants in Urban Area • Population & NOx Distribution • Annual NOx Concentration • Annual SO2 Concentration • Annual NOx & SO2 Concentration • Conclusion

  3. Outdoor Pollution Source Incomplete Combustion Industrial Emission (NOx, SO2) Transportation (NOx, SO2)

  4. Common Pollutants in Urban Area • A complex mixture including varying proportions of air, pollutants, humidity and allergens. • Ozone, generated by reaction of NOx; NO2 +O2 NO +O3 • SO2, Acid rain, Toxic (not focused) • Heat Island Effect • Occurs in the middle of Houston • 2.1 million people exposed. • Causes cancer and bronchial diseases

  5. Population & NOx Distribution

  6. NOx emission by year

  7. SO2 Emission by year

  8. Annual NOx & SO2 Concentration

  9. Conclusion • Overall NOx concentration is acceptable. • Less considered for SO2 concentration. • Necessary to make air quality standards for consider building-concentrated area with large population/area ratio. • Apply the heat island effect. • Personal protection.

  10. Any Question?

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