Duckweed Toxicity Data for PBAT and PLA Microplastics Under Warming

Experimental data quantifying particle and leachate contributions to microplastic toxicity in duckweed (Spirodela polyrhiza) at concentrations of 10–500 mg L⁻¹. The dataset, created by Yanhua Wang and last updated in April 2026, identifies high-risk chemical candidates in leachates using HPLC-MS and the ToxPi framework. It examines effects of polyvinyl chloride (PVC), polystyrene (PS), poly(butylene adipate-co-terephthalate) (PBAT), and polylactic acid (PLA) under elevated temperatures.

Use Cases

• Compare particle versus leachate toxicity contributions based on polymer type and endpoint mentioned in the description.
• Prioritize high-risk chemical candidates like docosanamide and pyrene based on nontarget screening data.
• Model the effect of elevated temperature on chemical leaching and toxicity outcomes.
• Analyze polymer-specific modes of action for PVC, PS, PBAT, and PLA based on the reported toxicity percentages.

Strengths

• Quantifies toxicity contributions with specific percentages for each polymer (e.g., PBAT leachate-driven toxicity 51.1–78.5%).
• Identifies specific high-risk chemical candidates within leachates, such as docosanamide and pyrene.
• Examines a key environmental variable: elevated temperatures and their effect on leaching.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The dataset is small (29.8 KB), indicating limited scope.

Provenance

Source

figshare

Collection Method

Experimental bioassay and chemical analysis via HPLC-MS, integrated with the Toxicological Priority Index (ToxPi) framework.

Time Range

Experimental study period not specified.

Freshness

Last updated 2026-04-10 19:05:59; freshness should be verified.

Geography

Spatial coverage of the study not specified.