Advances in Meteorology

Research Article

Estimation of Daytime NO3 Radical Levels in the UK Urban Atmosphere Using the Steady State Approximation Method

Table 3

Relative rates of removal of hydrocarbon [] of some selected VOCs by NO3 and OH considering the mixing ratios of NO3 and OH are 0.06 ppt (this study for UK urban representative sites (e.g., London Eltham)) and 1 × 106 molecules cm−3 (tropospheric average global concentration), respectively.
Compound 
cm3 molecules−1 s−1		  
cm3 molecules−1 s−1		[
Isoprene1.00 × 10−10 [32]7.00 × 10−13 [10]0.01
α-Pinene5.33 × 10−11 [32]5.83 × 10−12 [33]0.16
2-Methyl-2-butene8.69 × 10−11 [10]9.37 × 10−12 [10]0.16
β-Pinene7.81 × 10−11 [32]2.81 × 10−11 [32]0.54
d-Limonene8.80 × 10−14 [34]1.91 × 10−12 [33]32.6