Table 3. Estimated contribution of open biomass burning emissions to global SOA.

Average biomass burned 2005–2010a	5731 Tg yr−1
Biomass burning SOA (best-estimate from top-down approaches)b	17 TgC yr−1 (0–34 TgC yr−1)
Biomass burning SOA (estimated using published emission factors and SOA yields)c	4.4 TgC yr−1 (0.4–20 TgC yr−1)

^aReference ⁵⁷.

^bBest estimate from reference ⁵. Values in parentheses indicate upper and lower limits.

^cEstimated using emission factors from reference ⁵⁶ available for 19 of the 22 NMOGs responsible for SOA formation during aging of residential wood combustion emissions. Emission factors from trash and cooking-related burning are not considered. Values in parentheses indicate upper and lower limits determined using the range of SOA yields in the literature given in Supplementary Table S1 and range of emission factors based on type of fuel combusted (i.e., lower limit corresponds to pure wiregrass burning and lowest reasonable SOA yields and upper limit corresponds to pure ponderosa pine burning and highest reasonable SOA yields).