Preliminary Analysis of p 5 Speciation Data in Puget Sound Clean Air Agency

Preliminary Analysis of PM2.5 Speciation Data in Puget Sound

• Puget Sound Clean Air Agency

• Mike Gilroy, Erik Saganic

Overview

• Site Introduction

• Review of Speciation Parameters

• Aethalometer Introduction

• Aethalometer Data Analysis

• Conclusions

Network “Big Picture”

• “Almost Pure” Wood Smoke Darrington Site

• Marysville Wood Smoke North Site

• Lake Forest Park Wood Smoke North Site

• Olive Street Freeway Site

• Duwamish Industrial Site

• Beacon Hill Urban Background Site

• South Tacoma Wood Smoke South Site

Olive Street, Seattle – Mobile Source Site

Duwamish, Seattle – Industrial Site

South Tacoma Site – Wood Smoke/Residential Site

Analytes by Site – 2006

V vs. Ni Correlations

EC/OC Ratio vs. PM2.5

Aethalometer Measurement

• Magee Scientific

• BC Channel 880 nm

• UV Channel 370 nm

(UV – BC) vs. OC

(UV – BC) vs. OC

(UV – BC) Over Time

(UV – BC) Over Time

Wind Roses – UV Channel

Conclusions

• We can use this data to better understand our emission sources

• Using a suite of continuous monitors (FDMS, nephelometer, aethalometer, etc) is essential to enriching the understanding of the data

• Rich data sets currently available

• Continuous monitors like the Aethalometer can provide:

• Real-time data
• Cheaper sampling
• More data
• Currently packaged in a few of our publicly available products