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Comparison of diurnal variation of organosulfates and their precursors during the 2009 BEARPEX campaign. (a) Average MBO mixing ratio and the MBO-derived organosulfate; (b) average isoprene mixing ratio and the IEPOX-derived organosulfate. The BVOC mixing ratios are in ppb; the organosulfate mass concentrations are in ng/m3.
