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St. Louis - Midwest Particulate Matter Supersite

St. Louis - Midwest Particulate Matter Supersite. Project Overview February/March 2000 Update. St. Louis - Midwest Supersite: An Overview. USEPA Particulate Matter Supersites Program Phase I Supersites Atlanta, GA Fresno, CA Phase II Supersites New York City, NY Baltimore, MD

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St. Louis - Midwest Particulate Matter Supersite

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  1. St. Louis - Midwest Particulate Matter Supersite Project Overview February/March 2000 Update

  2. St. Louis - Midwest Supersite: An Overview • USEPA Particulate Matter Supersites Program • Phase I Supersites • Atlanta, GA • Fresno, CA • Phase II Supersites • New York City, NY • Baltimore, MD • Pittsburgh, PA • St. Louis, MO • Houston, TX • Fresno, CA • Los Angeles, CA

  3. St. Louis - Midwest Supersite Consortium • Washington University • J. Turner (PI), W. White* (Co-PI), E. Macias, B. Schichtel • Desert Research Institute • J. Chow* (Co-PI), J. Watson • Electric Power Research Institute • T. Bahadori • Harvard University School of Public Health • P. Koutrakis* (Co-PI), G. Allen • University of Maryland • J. Ondov (Co-PI) • University of Minnesota • P. McMurry* (Co-PI) • University of Wisconsin • J. Schauer *denotes Executive Management Team

  4. St. Louis Supersite Project Objectives USEPA identified three overarching objectives which each Supersite must address… (1) improved understanding of source-receptor relationships to support SIP development • St. Louis is an urban island, broadly representative of the urban Midwest (2) support health effects and exposure studies • integration with three large health effects programs (3) evaluation of emerging sampling methods • battery of advanced measurements for aerosol physical properties and chemical composition • emphasis on methods with demonstrated or potential ability to operate reliably for extended periods with limited attendance

  5. St. Louis Supersite: Monitoring Strategy • sustained measurements for a full year, CY 2001 • emphasis on temporal resolution of aerosol physical and chemical properties • core site, located in north St. Louis City • urban residential neighborhood • full suite of measurements • movable platform rotating between three satellite sites • visit each site for 3-4 weeks each quarter during CY 2001 • implement a subset of the core site measurement suite at the satellite sites

  6. St. Louis County CBD St. Louis City Monitor Sites core site (fixed platform) plus three satellite sites, each visited by a movable platform for 3-4 weeks per quarter (locations TBD)

  7. St. Louis Supersite: Sampling & Measurements other measurements aerosol chemical properties aerosol physical properties in situ methods… • aerosol size dist. (3nm-10mm) / 5 min • integral moments (number, light scat., elec. charge) / 2 sec • aethalometer / 5 min • fine mass (CAMMS) / 1 hr substrate methods… • PM1, PM2.5, PM10 mass by various samplers / 24 hr in situ methods… • sulfate / 10 min • nitrate / 10 min • EC/OC / 1 hr substrate methods… • ions & precursor gases (HEADS) / 24 hr • EC/OC / 24 hr • fine/coarse metals / 24 hr • selected elements retrospectively / 1 hr • organic compounds retrospectively / 24 hr • tox. sampling / 1 wk • airborne bioallergens / 24 hr • meteorological parameters (10m & 30 m), 5 min • criteria gas pollutants / 1 hr (nominal)

  8. St. Louis Supersite: Integration with Exposure & Health Effects Studies • measurement of personal and indoor exposures • H. Suh & P. Koutrakis (EPRI Exposure Studies) • cardiac vulnerability in potentially susceptible subjects • F. Speizer (NIEHS Program Project) • implantable defribrillators detected arrhythmias • D. Dockery (NIEHS Program Project) • conditions in elderly which predispose towards acute adverse effect of particulate exposure • J. Schwartz (EPA PM Center) • chronic effects of particulate exposure • D. Dockery (EPA PM Center) • in vitro toxicity of St. Louis particulate matter • L. Kobzik & P. Koutrakis (EPA PM Center)

  9. St. Louis Supersite: Other Features & Timeline • Other Features • collaboration with USEPA researchers currently being formalized • integration with EPA Region VII St. Louis community based air toxics initiative (risk based air screening) • provide a platform attractive for single-particle analysis measurements (e.g., testing, calibration) • historical context using data from previous studies (e.g., RAPS/RAMS, Harvard Six Cities) • Schedule • CY2000: planning, installation and shake-down • CY2001: full year of sustained measurements (1/1/01 through 12/21/01) • CY2002: sample analysis, data analysis • CY2003: data analysis and reporting

  10. St. Louis - Midwest Supersite • for more information… St. Louis - Midwest Supersite on the WWW at - http://capita.wustl.edu/StLSuperSite/ (to be activated circa March 1, 2000) • contact information... Jay R. Turner Department of Chemical Engineering Campus Box 1198 Washington University One Brookings Drive St. Louis, MO 63130-4899 tel: 314-935-5480 fax: 314-935-5464 email: JRTURNER@SEAS.WUSTL.EDU

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