. 2019 Sep 17;29(6):926–942. doi: 10.1111/ina.12597

Table 4.

Lognormal parameters (GM: geometric mean and GSD: geometric standard deviation) for the reaction rates of cooking‐related organic gases against hydroxyl radicals and ozone

GSD

P10

P25

P50

P75

P90

k_{OH} \times 10^{11} ({molec}^{- 1} {cm}^{3} s^{- 1})

ACR^a

1.8

1.17

1.5

1.7

1.9

2.1

2.3

C1^a

1.5

1.19

1.2

1.4

1.5

1.7

1.9

C2^a

2.2

1.23

1.7

1.9

2.2

2.5

2.8

C3^a

1.19

4.4

5.6

6.3

Terp^a

2.9

1.36

2.4

2.9

3.6

4.3

k_{O_{3}} \times 10^{18}

(molec⁻¹ cm³ s⁻¹)

ACR^d

2.6

—

C1^e

—

C2^e

—

C3^f

6.9

2.61

1.8

3.4

Terp^a

250

1.54

150

190

250

340

440

From this study based on the decay of these compounds against time and the estimated C _OH in the chamber based on the d‐9 butanol decay (equivalent to using the relative decay technique).

From Atkinson and Arey (2003).73 Rates were weighted by the compounds’ relative abundances, and these abundances were varied through an initial, separate Monte Carlo simulation to determine the variability of these rates.

Using Terp decay rates and C _OH and $C_{O_{3}}$ from this study and $(k_{OH, Terp} / k_{O_{3}, Terp})$ ratios for a mix of terpenes from Atkinson and Arey (2003),73 through a separate Monte Carlo simulation.

From NIST (2016)74 (taken from Grosjean et al. (1993)75).

Considered to be inert against ozone.

Estimated using the reaction of C3 against hydroxyl radicals, k _OH,C3, from this study and the relationship between k _OH,C3 and $k_{O_{3}, C 3}$ reported in Colman et al. (2015)76 for α, β‐unsaturated aldehydes: ln $(k_{O_{3}, C 3}) = 0.16$ ~ln(k _OH,C3) − 7.55.