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CALIBRATING CONCERN ABOUT PAHS IN URBAN AIR USING MONITORING AND MODELING: A PROJECT PLAN SUMMARY. Funding : U.S. EPA Community Air Toxics Ambient Monitoring Grant # XA00E00976 Passive Monitors : donated by Oregon State University, Simonich Environmental Chemistry Laboratory. Size Matters
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CALIBRATING CONCERN ABOUT PAHS IN URBAN AIR USING MONITORING AND MODELING: A PROJECT PLAN SUMMARY Funding: U.S. EPA Community Air Toxics Ambient Monitoring Grant # XA00E00976 Passive Monitors: donated by Oregon State University, Simonich Environmental Chemistry Laboratory
Size Matters • Ambient Temperature Matters • Branching Matters • Substitution Matters • Cancer Potency Matters
Project Team • Kristie Ellickson, Greg Pratt, Cassie McMahon, Mike Bauer, and (potentially a new planner from the air policy unit) • Carl Herbrandson • Paul Swedenborg, Mike Krause, Christina Rainaldo, Wyatt Hedine • Charlie Lippert
South Minneapolis Locations Passive sites Active sites
Peace Garden Site Passive sites Active sites
South Minneapolis Locations Passive sites Active sites
South Minneapolis Locations Passive sites Active sites
South Minneapolis Locations Passive sites Active sites
Calibration of Passive Samplers Sampling Rate (m3 day-1) = CPAS = mass of specific PAH on passive sampler media (ng) CAIR = concentration of specific PAH in air (ng m-3) But, we may have to adjust for calculate an effective air volume
Preliminary Data – MN PCA/MDH – Ellickson et al. MDH Priority cPAHs (21) MDH Priority cPAHs (21) EU marker cPAHs (4)