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High Wind Blowing Dust April 29, 2011 Exceptional Event

High Wind Blowing Dust April 29, 2011 Exceptional Event. Monitored Exceedances in Southern New Mexico. Description of Event. Temporal Extent and Source Areas of Event. Exceptional Event?. Exceptional Event?. Exceptional Event?. Clear Causal Relationship?. Natural Event?.

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High Wind Blowing Dust April 29, 2011 Exceptional Event

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  1. High Wind Blowing Dust April 29, 2011 Exceptional Event Monitored Exceedances in Southern New Mexico

  2. Description of Event

  3. Temporal Extent and Source Areas of Event

  4. Exceptional Event?

  5. Exceptional Event?

  6. Exceptional Event?

  7. Clear Causal Relationship?

  8. Natural Event?

  9. No Exceedance but For Event *24 hour Averages calculated using only the hours listed in the table. (i.e. SPCY 3629/24 = 151)

  10. Conclusions • High wind blowing dust event caused exceedances of the PM10 NAAQS (CCR, AAQ, Natural Event) • Event was not reasonably preventable or controllable (nRCP) • Recorded concentrations were well above background levels (HF) • The exceedances would not have occurred but for the event (NEBF)

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