. 2024 Jun 10;128(24):4838–4849. doi: 10.1021/acs.jpca.4c02287

Table 5. Tropospheric Lifetimes, τ (in Hours), for the Investigated Methyl-Butenols with OH, O₃, NO₃, and Cl Gaseous Oxidant Species^a.

	rate coefficient (cm³ × molecule^–1 × s^–1)				tropospheric lifetime (h)
	k_OH × 10¹¹^b	k_O₃ × 10¹⁷	k_NO₃ × 10¹³	k_Cl × 10¹⁰	τ_OH	τ_O₃	τ_NO₃	τ_Cl	τ_total
2-methyl-3-buten-2-ol	6.32	0.83¹⁹	0.11⁶¹	2.64⁶²	3.89	47.81	50.51	105.22	3.21
3-methyl-2-buten-1-ol	14.55	43.90⁶³	10.00⁶¹	4.02⁶⁴	1.69	0.90	0.56	69.10	0.32
3-methyl-3-buten-1-ol	10.04	0.68⁶⁵	2.70⁶¹	4.13⁶⁵	2.45	58.36	2.06	67.26	1.10
2-methyl-3-buten-1-ol	5.31	0.37⁶⁵	(−)	3.51⁶⁵	4.63	106.10	(−)	79.14	<4.17
3-methyl-3-buten-2-ol	11.71	(−)	(−)	(−)	2.10	(−)	(−)	(−)	<2.10

Average tropospheric concentrations used for calculating the lifetimes of MBOs: [OH] = 1.13 × 10⁶ radicals cm^–3,⁶⁶ [O₃] = 7 × 10¹¹ molecules cm^–3,⁶⁷ [NO₃] = 5 × 10⁸ radicals cm^–3,⁶⁸ [Cl] = 10⁴ atoms cm^–3,⁶⁹ (−) no available data.

This work.

Table 5. Tropospheric Lifetimes, τ (in Hours), for the Investigated Methyl-Butenols with OH, O3, NO3, and Cl Gaseous Oxidant Speciesa.

Table 5. Tropospheric Lifetimes, τ (in Hours), for the Investigated Methyl-Butenols with OH, O₃, NO₃, and Cl Gaseous Oxidant Species^a.