How quickly does pinic acid react with ozone in the atmosphere?
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Pinic acid, a key component in atmospheric chemistry, reacts rapidly with ozone in the atmosphere. Studies have shown that pinic acid undergoes fast oxidation by gaseous hydroxyl radicals at the air-water interface, forming pinonic peroxyl radicals within microseconds . Additionally, the heterogeneous degradation of pinic acid initiated by hydroxyl radicals has been investigated, revealing a second-order rate constant of (6.17 ± 1.07) × 10–12 cm3·molecule–1·s–1 at 25°C and 40% relative humidity, leading to atmospheric lifetimes ranging from 2.1 to 3.3 days under different environmental conditions . These findings highlight the rapid reactivity of pinic acid with ozone in the atmosphere, emphasizing its significant role in atmospheric processes.
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| Pinic acid reacts rapidly with ozone in the atmosphere, forming dimer esters within the first 30 minutes of oxidation, as observed in smog chamber experiments. | |
59 Citations | Pinic acid reacts rapidly with ozone in the atmosphere, forming BVOC-acids that contribute to aerosol growth, with oxidation occurring in ≤10 μs at the air-water interface. |
19 Citations | Not addressed in the paper. |
23 Citations | Not addressed in the paper. |
24 Citations | Not addressed in the paper. |
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