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. 2014 May 13;37(8):1810–1825. doi: 10.1111/pce.12336

Table 2.

Chemical lifetime (τ) of VOCs and their main oxidation products, calculated for the average atmospheric mixing ratios of OH radicals (= 0.04 pptv) and ozone (=28.4 ppbv)

Biogenic VOCs Biogenic VOC oxidation products
Isoprene τOH τO3 τOH τO3
1.4 h 1.3 d Methacrolein 4.1 h 15 d
Methyl vinyl ketone 6.8 h 3.6 d
3-Methyl furan 1.5 h 19 h
Monoterpenes τOH τO3 τOH τO3
 Limonene 49 min 2 h Limononaldehyde 1.26 h 2 d
 Terpinolene 37 min 13 min 4-Methyl-3-cyclohexenone 1.5 h n.r.
α-Pinene 2.6 h 4.6 h Pinonaldehyde 2.9 h >2.4 year
β-Pinene 1.8 h 1.1 d Nopinone 12 h >4.5 year
 Δ3-Carene 1.6 h 11 h Caroaldehyde 2.9 h >2.3 year
 Sabinene 1.2 h 4.6 h Sabinaketone 18.8 d >0.9 year
 Camphene 2.6 h 18 d Camphenilone 2.3 d >4.5 year
Sesquiterpenes τOH τO3
β-Caryophyllene 42 min 2 min
α-Humulene 28 min 2 min
α-Cedrene 2.1 h 14 h
α-Copaene 1.5 h 2.5 h
Alcohols τOH τO3 τOH τO3
 2-Methyl-3-buten-2-ol 2.4 h 1.7 d 5-Methyl-5-vinyltetrahydrofuran-2-ol 1.56 d 8.7 d
 cis-3-Hexen-1-ol 1.3 h 6.2 h
 Linalool 52 min 55 min
 1,8-Cineole 1.0 d >110 d
 Methanol 12 d >4.5 year

n.r., not reactive; VOC, volatile organic compound.