Aerosol measurements over the eastern China seas during 2017 to 2020

This dataset contains the concentrations of trace elements and water-soluble ions in total suspended particles (TSP) over the eastern China seas on four cruises during (1) 27 March – 14 April 2017 (spring), (2) 27 June – 19 July 2018 (summer), (3) 28 December 2019 – 17 January 2020 (winter), and (4) 12 – 29 October 2020 (autumn). The air mass exposure to chlorophyll a (AEC), air mass retention ratio over the land (R_L), marine air mss retention ratio within the boundary layer (R_MBL), and harmonic means of boundary layer height along the air mass trajectory (BLH_traj) corresponding to each TSP sample are also presented. The calculation code for these indices is available at https://doi.org/10.5281/zenodo.7056981.