Microplastic potentiates triclosan toxicity to the marine copepod Acartia tonsa (Dana)

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Abstract

Microplastics (MP) are contaminants of environmental concern partly due to plastics ability to sorb and transport hydrophobic organic contaminants (HOC). The importance of this "vector effect" is currently being debated in the scientific community. This debate largely ignores that the co-exposures of MP and HOC are mixtures of hazardous agents, which can be addressed from a mixture toxicity perspective. In this study, mixture effects of polyethylene microbeads (MP) and triclosan (TCS) (a commonly used antibacterial agent in cosmetics) were assessed on the marine copepod Acartia tonsa. Data indicated that MP potentiate the toxicity of TCS, illustrating the importance of understanding the mixture interaction between plastics and HOC when addressing the environmental importance of the vector effect.
Original languageEnglish
JournalJournal of Toxicology and Environmental Health. Part A
Volume80
Issue number23-24
Pages (from-to)1369-1371
Number of pages3
ISSN1528-7394
DOIs
Publication statusPublished - 13 Nov 2017

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