Figure 2.

Multiphase simulation chamber experiments conducted in the presence of ([HA] = 10 mg L^–1 and NA = 1 mM). Top graph: time–concentration profile of ozone; Middle graph: time concentration profiles of VOC identified and measured by the PTR-ToF-MS; Bottom graph: Corresponding time series of particle number size distributions. The yellow part represents the period when the lights were on (Exp. 9 in Table 1).