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East St. Louis SCAPE Deployment Preliminary data August 2013

RD83479901 . East St. Louis SCAPE Deployment Preliminary data August 2013. Laura King Earth and Atmospheric Sciences Georgia Institute of Technology August 19, 2013. Instruments Deployed. Semicontinuous organic and elemental carbon (OC/EC) (Sunset Labs)

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East St. Louis SCAPE Deployment Preliminary data August 2013

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  1. RD83479901 East St. Louis SCAPE DeploymentPreliminary data August 2013 Laura King Earth and Atmospheric Sciences Georgia Institute of Technology August 19, 2013

  2. Instruments Deployed • Semicontinuous organic and elemental carbon (OC/EC) (Sunset Labs) • NO2 (direct absorption, 450 nm, Aerodyne) • Ozone (photometric, Thermo Electron) • ACSM (aerosol speciation, PM1, Aerodyne) (only truly operational since August 15) • Offline instruments: • UCI cans (speciated VOCs) • Filters (ions, OC, EC, oxidative potential, etc)

  3. OC/EC

  4. Gas phase: NO2, Ozone

  5. Diurnal profiles

  6. BIG Thanks to WUSTL!

  7. Overview Hongyu 08/19/2013 Weber’s Group

  8. Experimental methods_PILS-LWCC-TOC Schematic of online PILS-LWCC-TOC Image source: [Hecobian et al., 2010]

  9. Preliminary results_time series(1) • WSOC & Brown Carbon: LWCC was down

  10. Preliminary results_time series(2) • PM2.5 & BC: Fixing MAAP

  11. Preliminary results-diurnal profiles Fine particle mass concentration drops in the afternoon significantly. WSOC diurnal profile is flat, because most of WSOC comes from secondary formation. BC indicates primary emission. Rush hour peaks are observed. Error bar-Standard error

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