Comparison of the aquatic toxicity of diquat and its metabolites to zebrafish Danio rerio.

ABSTRACT: Diquat (DQ) is a non-selective, fast-acting herbicide that is extensively used in aquatic systems. DQ has been registered as the substitute for paraquat due to its lower toxicity. However, the widespread presence of DQ in aquatic systems can pose an ecological burden on aquatic organisms. In addition, DQ can degrade into its metabolites, diquat-monopyridone (DQ-M) and diquat-dipyridone (DQ-D) in the environment, while the ecological risks of the metabolites remain uncertain. Herein, the aquatic ecological risks of DQ and its metabolites were compared using zebrafish as model non-target organisms. Results indicated that DQ and its metabolites did not induce significant acute toxicity to zebrafish embryos at environmentally relevant levels. However, exposure to DQ and DQ-D resulted in oxidat

SUBMITTER: Shi L 

PROVIDER: S-EPMC11682118 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature