The abstract is read at the publisher; the summary is JClub's.
Pure polyethylene terephthalate (PET) leachates most strongly disturb physiology in the freshwater microalga Chlorella sp. MM3, with a physiological disturbance index (PII) of 0.82.
- Why it matters: Polymer type and additive complexity in microplastic leachates are linked to toxicity, but which components drive primary-producer stress and how remains unclear.
- What they did: Aqueous leachates from pure and commercial PET, polystyrene (PS), and polyvinyl chloride (PVC) were prepared at 100 and 1000 mg L−1, then analyzed for phthalate profiles and tested on Chlorella sp. MM3 using physiological assays and metabolomics.
- The result: PET and PVC leachates caused greater toxicity than PS, with chlorophyll a dropping up to 47% (pure PET) and reactive oxygen species and lipid peroxidation rising more than three-fold versus controls, supporting polymer-specific mechanistic risk assessment.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.