Ozone reacts with carbon black to produce a fulvic acid-like substance and increase an inflammatory effect
Figure 2.  Cell non-heme iron concentrations following 4 (A) and 24 (B) hr exposures of BEAS-2B cells to media, carbon black treated with air (CB-Air), carbon black treated with ozone (CB-O3), and Suwanee River fulvic acid (SRFA).  Incubations were without and with 200 μM FAC.  Exposures to CB-Air, CB-O3, and SRFA did …