# Presentation: 126606

## THE ATMOSPHERIC REACTIVITY TASK GROUP

- SERVING
-  THE AMERICAN CHEMISTRY COUNCIL’S
- SOLVENTS COUNCIL
- DAN BAKER
- presenter on behalf of the ARTG

## AMERICAN CHEMISTRY COUNCIL

- Trade Association, Headquartered in DC
- About 200 Member Companies
- Collectively representing about 90% of the basic chemicals produced in the US; also a major export industry
- Composed of both a generic side (i.e. Air Issues Team, Residual Risk Team, etc.) and a chemical-specific side (through CHEMSTAR panels like Ketones Panel, Glycol Ethers Panel, etc.)

## SOLVENTS COUNCIL

- Created to address health, safety, and environmental issues affecting producers, distributors, and users of hydrocarbon and oxygenated organic solvents
- Primary goals
- to educate regulators and solvent users about solvents
- to provide information to solvent users about complying with regulatory requirements
- to prevent unwarranted restrictions on the use of solvent-based products
- Contact:
- Barbara_Francis@americanchemistry.com

## SOLVENTS COUNCIL MEMBER COMPANIES

- Dow Chemical Company, including wholly-owned Union Carbide
- Eastman Chemical Company
- ExxonMobil Chemical Company
- Lyondell Chemical Company
- Shell Chemical Company
- Sunoco Inc.

## ATMOSPHERIC REACTIVITY TASK GROUP

- Originally an ad hoc task group
- Includes scientists and policy specialists
- Active in research
- Active in policy issues
- Some overlap of scientists with other ACC teams and CHEMSTAR panels

## ARTG RESEARCH PROJECTS

- The use of ambient air quality measurements as indicators and in other observation-based methods (Charles Blanchard) *
- Assessing the fate of organic solvents (Prof. Donald McKay) *
- Methods to measure organic nitrate yield in new environmental chambers (Dr. Bill Carter)
- Development of improved methods for measuring atmospheric reactivity (Dr. Bill Carter)
- Review of methods to estimate oxidation rates, product, and yields (Dr. David Golden) *
- Assessing VOC reactivity through regional grid modeling (Dr. Carter, Tonnesen, and Yarwood) *
- * Publication

## OTHER RELATED RESEARCH PROJECTS

- Atmospheric chemistry of selected glycol ethers (Prof. Roger Atkinson) *
- Smog chamber studies of selected glycol ethers (Dr. Bill Carter)
- Improved intermediate representation in reactivity assessment of glycol ethers (Dr. Bill Carter)
- Organic nitrate yield for glycol ethers (Prof. Paul Shepson) *
- Integrating air quality and environmental fate modeling (TBA) *
- Quantification of organic molecular markers in fine PM samples (Prof. Matt Fraser) *
- Predicting organic nitrate yields by ab initio calculations (Prof. Lawrence Lohr) *
- * Publication

## OTHER RELATED RESEARCH PROJECTS (2)

- Testing of multiple modules for SOA formation (application to biogenic emissions); partial co-fund (Dr. Christian Seigneur) *
- Model evaluation of nitrogen species budgets for 2 chemical mechanisms Dr. Gail Tonnesen) *
- The observed composition of atmospheric aerosols (Prof. Monica Mazurek) *
- Precursor budgets in the upper troposphere and their impact on transboundary oxidant formation (TBA) *
- Integration of SAPRC99 into SMOKE for CMAQ/Models3 (TBA)
- * Publication

## ARTG COMMITMENTCOMBINED SCIENCE AND POLICY FORUMS

- California Air Resources Board - Reactivity Research Advisory Committee
- MIR, uncertainties, compounds to be tested
- Reactivity Research Working Group - a NARSTO member group
- Science needed to support any update to EPA’s VOC policy

## SUMMARY

- ARTG, and all of ACC, is committed to sound science for decision making on atmospheric issues
- ARTG is active in reactivity research and related policy development
- ARTG is interested in, and overlaps, with other ACC research in atmospheric issues
- ARTG will continue to play an active role in these issues