@Article{acpd-7-15693-2007, AUTHOR = {Thornhill, D. A. and Herndon, S. C. and Onasch, T. B. and Wood, E. C. and Zavala, M. and Molina, L. T. and Gaffney, J. S. and Marley, N. A. and Marr, L. C.}, TITLE = {Particulate polycyclic aromatic hydrocarbon spatial variability and aging in Mexico City}, JOURNAL = {Atmospheric Chemistry and Physics Discussions}, VOLUME = {7}, YEAR = {2007}, NUMBER = {6}, PAGES = {15693--15721}, URL = {http://www.atmos-chem-phys-discuss.net/7/15693/2007/}, ISSN = {1680-7367} }