Table S1.
Maximum photolysis constants for the boundary layer air model
| Reaction | Jmax, s−1 | Ambient source |
| I2 → 2I | 3.76 × 10−2 | Scaled to Thompson et al. (13) |
| IO → I + O(3P) | 4.50 × 10−2 | Scaled to Thompson et al. (13) |
| OIO → IO + O(3P) | 3.84 × 10−4 | Scaled to Thompson et al. (13) |
| OIO → I +O2 | 8.09 × 10−3 | Scaled to Thompson et al. (13) |
| IOOI → 2IO | 3.71 × 10−3 | Scaled to Thompson et al. (13) |
| IOOI → 2I + O2 | 3.71 × 10−3 | Scaled to Thompson et al. (13) |
| HOI → I + OH | 1.26 × 10−3 | Scaled to Thompson et al. (13) |
| INO → I + NO | 2.07 × 10−2 | Scaled to Thompson et al. (13) |
| INO2 → I + NO2 | 5.53 × 10−4 | Scaled to Thompson et al. (13) |
| INO3 → IO + NO2 | 1.77 × 10−4 | Scaled to Thompson et al. (13) |
| INO3 → I + NO3 | 7.21 × 10−5 | Scaled to Thompson et al. (13) |
| IBr → I + Br | 1.69 × 10−2 | Scaled to Thompson et al. (13) |
| Br2 → 2Br | 1.09 × 10−2 | Scaled to Thompson et al. (13) |
| BrO → Br + O(3P) | 7.49 × 10−3 | Scaled to Thompson et al. (13) |
| HOBr → Br+ OH | 5.74 × 10−4 | Scaled to Thompson et al. (13) |
| BrNO2 → Br + NO2 | 3.75 × 10−5 | Scaled to Thompson et al. (13) |
| BrNO3 → BrO + NO2 | 2.90 × 10−4 | Calculated using TUV and radiation data |
| BrNO3 → Br + NO3 | 5.12 × 10−5 | Calculated using TUV and radiation data |
| ICl → I + Cl | 5.46 × 10−3 | Scaled to Thompson et al. (13) |
| BrCl → Br + Cl | 3.12 × 10−3 | Scaled to Thompson et al. (13) |
| Cl2 → 2Cl | 5.10 × 10−4 | Calculated using TUV and radiation data |
| ClO → Cl + O(3P) | 6.06 × 10−6 | Scaled to Thompson et al. (13) |
| OClO → ClO + O(3P) | 3.04 × 10−2 | Calculated using TUV and radiation data |
| HOCl → Cl + OH | 3.44 × 10−5 | Scaled to Thompson et al. (13) |
| ClNO2 → Cl + NO2 | 1.09 × 10−5 | Scaled to Thompson et al. (13) |
| ClNO3 → ClO + NO2 | 8.33 × 10−7 | Calculated using TUV and radiation data |
| ClNO3 → Cl + NO3 | 7.25 × 10−6 | Calculated using TUV and radiation data |
| O3 → O2 + O(1D) | 1.31 × 10−4 | Calculated using TUV and radiation data |
| H2O2 → 2OH | 8.45 × 10−7 | Calculated using TUV and radiation data |
| NO2 → NO + O(3P) | 2.13 × 10−3 | Calculated using TUV and radiation data |
| NO3 → NO + O2 | 1.11 × 10−2 | Calculated using TUV and radiation data |
| N2O5 → NO2 + NO3 | 3.78 × 10−6 | Calculated using TUV and radiation data |
| HNO2 → NO + OH | 4.47 × 10−4 | Calculated using TUV and radiation data |
| HNO3 → NO2 + OH | 3.62 × 10−8 | Calculated using TUV and radiation data |
| HNO4 → NO2 + HO2 | 1.81 × 10−7 | Calculated using TUV and radiation data |
| HCHO → CO + 2HO2 | 3.65 × 10−6 | Calculated using TUV and radiation data |
| HCHO → CO + H2 | 7.81 × 10−6 | Calculated using TUV and radiation data |
| CH3CHO→CH3O2+CO+HO2 | 2.65 × 10−7 | Calculated using TUV and radiation data |
| CH3OOH→HCHO+HO2+OH | 7.85 × 10−7 | Calculated using TUV and radiation data |
| C3H6O→C2H5OO+CO+HO2 | 3.46 × 10−7 | Calculated using TUV and radiation data |
| PAN→CH3COOO+NO2 | 4.33 × 10−8 | Calculated using TUV and radiation data |
As noted, most photolysis rate constants were scaled to Thompson et al. (13) by multiplying by the ratio of maximum NO2 photolysis rates.