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. 2022 Feb 14;2(3):178–205. doi: 10.1021/acsenvironau.1c00042

Figure 4.

Figure 4

Scavenging capacities of (kS,t=0′) as a function of species concentration for some eaq scavengers in UV-ARP. Bimolecular rate constants used for these calculations are shown in Table 1. A value of 1.2 × 108 MC–1 s–1 (∼104 L mgC–1 s–1) was used for the DOM-eaq– reaction based on the DOM-•OH rate constant for SRFA.50 Filled circles represent the scavenging capacity of each species under the following conditions: [H+] = 10–7 M, [O2] = 250 × 10–6 M (8 mg/L), [NO3–] = 1.61 × 10–5 M (1 mg/L), [NO2–] = 2.17 × 10–5 M (1 mg/L), [DOM] = 1.66 × 10–4 molC L–1 (2 mgC/L), and [HCO3–] = 10–3 M (61 mg/L).