Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 421, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2021.126779
Keywords
Microplastic; Aquatic toxicity; Principal component analysis; Plastic pollution
Categories
Ask authors/readers for more resources
This study investigated the toxic effects of leachates from microplastic fragments of soles from four different types of shoes on three aquatic organisms, and identified the major chemical compounds influencing the test species. The results highlighted the significant negative effects of toxic chemicals leaching from microplastics on aquatic organisms and emphasized the importance of regulating chemical use during plastic production to maintain the health of aquatic environments.
This study investigated the toxic effects of leachates from microplastic fragments of soles from four different types of shoes (slippers, trekking shoes, running shoes, and sneakers) on three aquatic organisms (Chlamydomonas reinhardtii, Daphnia magna, and Danio rerio). The chemical components in each leachate were identified; furthermore, chlorophyll a contents of C. reinhardtii were measured, and immobilization of D. magna and deformities in D. rerio were observed. The abnormalities observed in the test species exposed to the leachates were compared and chemical compounds majorly influencing the species were determined by principal component analysis (PCA). Sneaker leachate showed growth inhibitions in C. reinhardtii, immobility and mortality in D. magna, and severe abnormalities in D. rerio. Consequently, aquatic toxicity was majorly associated with benzothiazole, carbon disulfide, ethyl acetate, and p-xylene. The results showed that toxic chemicals could leach from load-originated microplastics when exposed to aquatic media, and consequently, induce significant negative effects on aquatic organisms. Since microplastics from shoe soles discharge the above-mentioned toxic chemicals, regulating the chemical use during plastic production is critical to prevent severe effects of microplastic toxicity in aquatic organisms, and to maintain the health of aquatic environments.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available