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. 2005 Mar 16;113(8):947–955. doi: 10.1289/ehp.7939

Figure 10.

Figure 10

Hourly PN vs. O3 concentrations in Glendora, California, during summer 2002, with a lag time of 2 hr (PN vs. O3 2 hr earlier). Reprinted with permission from Sardar et al. (2004). Copyright 2004, Air and Waste Management Association.