Water characteristics and size-fractionated mercury in the Yangtze River estuary

Data for water characteristics (salinity, SPM, DOC, and optical characteristics of DOM) and size-fractionated (particulate, colloidal, and truly dissolved fraction) mercury concentration in the Yangtze River estuary, as well as in the laboratory mixing experiments.本数据集涵盖长江口与室内混合实验场景下的水体特征数据（包括盐度、悬浮颗粒物（SPM）、溶解有机碳（DOC）及溶解性有机质（DOM）的光学特征），以及上述两类场景中经粒径分级分离为颗粒态、胶体态与真溶解态的汞浓度数据。