Data for: Increasing hypoxia in the Changjiang Estuary during the last three decades deciphered from sedimentary redox-sensitive elements

Table S1 Minimum DO concentrations and hypoxic areas (≤2 mg l-1) off the Changjiang Estuary Table S2 Grain size data for sediment cores. Table S3 Geochemical data for sediment cores. Table S4 Accuracy of measured elements in certified reference materials Table S5 Correlation coefficients between RSEs/Al and major control factors