Abstract Topic # 7

What Types of Measurements are Needed for Exposure Assessment? What do We Know About Indoor Organic Speciation?

Topic Leader: Sally Liu
Contributors: Wolfgang Rogge Y Chris Simpson

Sally Liu (Topic Leader) will provide a synopsis on the following points (20 min):

* What role does OC play in terms of proportion of personal and indoor PM2.5 vs. outdoor PM?

- recent findings on organic speciation
- Indoor OC artifacts and the impacts on exposure measurements

* Current source apportionment findings regarding potential sources of personal and indoor exposures and the utility of OC.

- recent source apportionment results

* What type of measurements are needed for exposure assessment to distinguish classes of OC by:

- gaseous and particle-bound organics
- sources

Wolfgan Rogge will address indoor sources, with cooking as a major OC source (15 min):

* Organic PM emissions from residential cooking

Chris Simpson will address infiltrated outdoor sources to indoor and personal environments, focusing on wood smoke (WS) and diesel exhaust (DE) (15 min):

* WS and DE markers
* Infiltration estimates
* biomarkers