Table 1.

Global Budget of Atmospheric Acetone

	This Work	Jacob et al. [2002]	Other Estimatesa
Inventory, Tg	5.6	3.8	3.8–7.2
Sources, Tg a−1
Emissions
Anthropogenic	0.73b	1.1 ± 0.5	1.1–2
Open biomass burning	2.8	4.5 ± 1.6	2.4–9
Terrestrial Biosphere	32	35 ± 10	20–172
Atmospheric Production
Oxidation of isoalkanes (mainly anthropogenic)	26c	21 ± 5	1–28
Oxidation of biogenic VOCs	5	7 ± 3	7
Sinks, Tg a−1
Oxidation by OH	33	27	18–27
Photolysis	19	46	9–22
Land uptake	12	9	9–19
Net Ocean exchange, Tg a−1 d	−2	13 ± 6	−62–2.5
Gross source	80	NA	NA
Gross sink	82	NA	NA

^aArnold et al. [2005], Singh et al. [2003, 2004], Potter et al. [2003], Marandino et al. [2006], Sinha et al. [2007], Pozzer et al. [2010], and Elias et al. [2011].

^bIncluding biofuel use.

^cIncluding 22 Tg a⁻¹ from propane and 4 Tg a⁻¹ from the higher alkanes.

^dPositive values indicate upward fluxes.