PFAS Ecological Risk in Chinese Rivers Under Thermal and Hypoxic Stress

A multistressor framework shows climate-driven thermal and hypoxic stress can reduce hazardous concentrations of PFAS chemicals by up to 90%. Risk quotients for Chinese surface waters exceeded 10 at several sites in the lower Yangtze and Yellow Rivers. This dataset, authored by Weigang Liang and last updated in May 2026, quantifies these ecological risks using a species sensitivity distribution approach.

Use Cases

• Modeling ecological risk amplification based on thermal effect margins of 2 °C
• Assessing contaminant sensitivity shifts based on hypoxic effect margins of 2.8 mg/L
• Calculating joint probability curves for combined thermal–hypoxic stress scenarios
• Mapping risk landscapes for legacy PFAS (PFOA and PFOS) in surface waters

Strengths

• Applies a multistressor potentially affected fraction framework integrating species sensitivity distributions
• Quantifies specific hazardous concentration declines (e.g., PFOS from 0.6 to 0.1 μg/L) under defined stressor scenarios
• Provides risk quotients for specific geographic sites, such as the lower Yangtze and Yellow Rivers

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data may reflect geographic bias inherent to the focus on Chinese surface waters

Provenance

Source

figshare

Collection Method

Analysis using a multistressor potentially affected fraction framework and species sensitivity distributions.

Freshness

Last updated 2026-05-14 19:08:24

Geography

Chinese surface waters, with specific mention of the lower Yangtze and Yellow Rivers.