Gas-to-aerosol partitioning of organics was investigated in Shanghai during the 2023 dust storm period. We found the partitioning coefficients (F_p) of water-soluble organic compounds in the dust storm period (DS) were comparable to those during a haze episode (HE), and aerosol liquid water content primarily drove F_p variation in HE, while pH was the dominant factor in DS. Moreover, an enhanced light absorption of Asian dust by brown carbon, mainly in coarse mode, formation was revealed.