T/CSES 23-2021 Technical Guidelines for Ecological Risk Assessment of Chemical Pollutants in Water Environment Related to Endocrine Disrupting Chemicals

Scope

Main technical content: In response to the environmental risk management needs of hormone-based chemical pollutants in China's water environment, and taking into account the pollution level of single hormone-based chemical pollutants in surface water and the different toxic effects on aquatic organisms in the water environment, such as the exposure concentration level of pollutants, growth/development, and reproductive toxic effects, this study focuses on key factors in surface water exposure assessment, including data screening, selecting sensitive test organisms in toxicity effect assessment, and sensitive test endpoints, as well as toxicity impact pathways and data collection, data processing, and data verification. The aim is to establish a water ecological risk assessment method based on the concentration level, effects, and risk degree of single hormone-based chemical pollutants in the water environment. According to the impact pathway of pollutants, the amount of available toxicity data, and the number of aquatic species, an appropriate method for deriving and predicting no-effect concentrations is selected to objectively describe the risk of hormone-based pollutants in the water environment. The specific content includes: (1) Scope; (2) Normative reference documents; (3) Terms and definitions; (4) Ecological risk assessment principles; (5) Risk assessment procedures; (6) Risk assessment methods; (7) Uncertainty analysis; (8) Risk management; (9) Appendix A: Ecotoxicity data screening and evaluation; (10) Appendix B: SSD model

Development Information

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