Articles | Volume 16, issue 15
https://doi.org/10.5194/acp-16-9629-2016
https://doi.org/10.5194/acp-16-9629-2016
Research article
 | 
02 Aug 2016
Research article |  | 02 Aug 2016

Variation in global chemical composition of PM2.5: emerging results from SPARTAN

Graydon Snider, Crystal L. Weagle, Kalaivani K. Murdymootoo, Amanda Ring, Yvonne Ritchie, Emily Stone, Ainsley Walsh, Clement Akoshile, Nguyen Xuan Anh, Rajasekhar Balasubramanian, Jeff Brook, Fatimah D. Qonitan, Jinlu Dong, Derek Griffith, Kebin He, Brent N. Holben, Ralph Kahn, Nofel Lagrosas, Puji Lestari, Zongwei Ma, Amit Misra, Leslie K. Norford, Eduardo J. Quel, Abdus Salam, Bret Schichtel, Lior Segev, Sachchida Tripathi, Chien Wang, Chao Yu, Qiang Zhang, Yuxuan Zhang, Michael Brauer, Aaron Cohen, Mark D. Gibson, Yang Liu, J. Vanderlei Martins, Yinon Rudich, and Randall V. Martin

Data sets

SPARTAN PM2.5 G. Snider, C. L. Weagle, K. K. Murdymootoo, A. Ring, Y. Ritchie, E. Stone, A. Walsh, C. Akoshile, N. X. Anh, R. Balasubramanian, J. Brook, F. D. Qonitan, J. Dong, D. Griffith, K. He, B. N. Holben, R. Kahn, N. Lagrosas, P. Lestari, Z. Ma, A. Misra, L. K. Norford, E. J. Quel, A. Salam, B. Schichtel, L. Segev, S. N. Tripathi, C. Wang, C. Yu, Q. Zhang, Y. Zhang, M. Brauer, A. Cohen, M. D. Gibson, Y. Liu, J. V. Martins, Y. Rudich, and R. V. Martin http://spartan-network.org

U.S. Department of State Air Quality Monitoring Program (Beijing) PM2.5 U.S. Department of State http://www.stateair.net/web/mission/1/

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Short summary
We examine the chemical composition of fine particulate matter (PM2.5) collected on filters at traditionally undersampled, globally dispersed urban locations. Several PM2.5 chemical components (e.g. ammonium sulfate, ammonium nitrate, and black carbon) vary by more than an order of magnitude between sites while aerosol hygroscopicity varies by a factor of 2. Enhanced anthropogenic dust fractions in large urban areas are apparent from high Zn : Al ratios.
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