1. University of California, Irvine, CA, USA
2. Yorke Engineering, Newbury Park, CA, USA
3. Bay Area Air Quality Management, District, San Francisco, CA, USA
4. Desert Research Institute, Reno, NV, USA
5. The State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xian, Shaanxi, People’s Republic of China
6. Envair/Aerochem, Placitas, NM, USA
7. Consultant, Danville, CA, USA
8. TropoChem, Palo Alto, CA, USA