Spatiotemporal Patterns of Aquatic Product Risks in China Based on Entropy-Weighted TOPSIS.

ABSTRACT: This study investigates the risk classification and spatiotemporal evolution patterns of hazardous substances in Chinese aquatic products. The entropy-weighted TOPSIS method was employed to achieve the ranking of hazardous substances and classify their risk levels. A spatial autocorrelation analysis was conducted to explore the spatial distribution patterns of the highest-risk and higher-risk substances in Chinese aquatic products. Risk-adjustment factors were employed to allow us to perform dynamic analyses of the risks in aquatic products across different temporal and spatial contexts. The results indicate that the top three hazardous substances in aquatic products were cadmium, enrofloxacin, and total volatile basic nitrogen; their relative proximity values were 0.707, 0.689, and 0.429,

SUBMITTER: Tao G 

PROVIDER: S-EPMC12733135 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature