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. Author manuscript; available in PMC: 2020 Jul 1.
Published in final edited form as: Environ Int. 2019 May 8;128:310–323. doi: 10.1016/j.envint.2019.04.057

Figure 1.

Figure 1.

Study region with training and independent test sample locations [four routine AQS monitoring locations, a (468 Manzanita Av., Chico, CA), b (3377 Tahoe Blvd., South Lake Tahoe, CA), c (II-1270 Natividad Rd., Salinas, CA) and d (6078 Adobe Rd., Twentynine Palms, CA) selected for the long-term time series plots of the observed, predicted and simulated concentrations in Figure 7]