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Dave DuBois NM State Climatologist NMSU

Land-based Sources of Air Quality Contaminants in the Binational Border Region of Southwestern New Mexico, Northwestern Chihuahua and West Texas: First 4 Years. Dave DuBois NM State Climatologist NMSU. Presented at the Joint Advisory Committee meeting, Sept. 19, 2013.

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Dave DuBois NM State Climatologist NMSU

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  1. Land-based Sources of Air Quality Contaminants in the Binational Border Region of Southwestern NewMexico, Northwestern Chihuahua and West Texas: First 4 Years Dave DuBois NM State Climatologist NMSU Presented at the Joint Advisory Committee meeting, Sept. 19, 2013

  2. Analysis of Hospital Data • Memorial Medical Center, Las Cruces ER & hospital admissions data, 2007-2010 • Our analysis indicated effects of PM10, PM2.5 and O3 on emergency room visits during the April-September period • Strong effect of summertime O3 concentrations on cardiovascular ER visits among the elderly • Sources in southeast Texas, Baja California and southwest US were the most important regional contributors

  3. Analysis of ozone in the region • Wildfires contributed between 3 and 10 ppbv to monthly averaged 8-hr maximum ozone concentrations • This represented between 9 and 22% of measured monthly 8-hr maximum O3 concentrations • At remote Chiricahua location, fires contributed 7 ppbv (12% of monthly 8-hr max.)

  4. Developed dust source database • 2000-2012 database from satellite imagery

  5. Biological Aerosol Program • Fungal and pollen characterization One pair of fungal samples collected & analyzed (qPCR) near dairy dust sources showing diversity and spatial variation within 2 km

  6. Dust Mitigation Program • Demonstration areas covering 1-1/2 years 3 housing development sites; 5 different controls in urban setting in Las Cruces Dust collection using BSNEs Colinas site

  7. Dust Modeling • Collaborating with US Naval Research Laboratory, Monterey – NAAPS model • Compilation of dust days, locations, durations • Ongoing comparisons & include project dust source locations in future NAAPS runs March 18, 2012

  8. Baseline & Inventory Reports • Summaries of historical PM10, PM2.5, ozone, and lead data • Climate assessment for the region • Air quality and climate monitoring inventory • Emission inventory for the region • Geospatial data inventory for the region

  9. Ongoing Monitoring • Core site in Las Cruces • Hourly BAM PM10, PM2.5, ozone, nephelometer (λ=0.5µm), black carbon • Ceilometer (backscatter 0-7km) • Daily pollen and fungi counting • 1-in-3 day fungi and PM2.5 (Teflon) • Filter samples during events, speciation, SEM

  10. NM Border Air Program Website Reports and project summaries YouTube videos on various topics Symposium last April Blog for breaking news and events nmborderair.nmsu.edu

  11. Program Looking Forward • Transition from project to program • Dust mitigation – solving problems, long term • Collaboration with City of Las Cruces, Developers, BLM & ranchers • Expand health & hospital database • Continue monitoring • Significant collaborations with DRI, UAMS, UTEP, NRL

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