Microplastics release precursors of chlorinated and brominated disinfection byproducts in water

Screening of polymer types and chemical weathering in macro- and meso-plastics found on lake and river beaches using a combined chemometric approach

“…64,65 Besides, the detection of chloride and/or bromide atoms in the lower frequency regions can be ascribed to the migration of halogenated additives (e.g., polybrominated diphenyl ethers and hexabromocyclododecane) towards the polymer surface, where they potentially yield brominated by-products aer leaching out. 66 Compared to Beach-56 and Beach-51, no vinyl groups (z1531 cm −1 ) were detected for Beach-26, but a strong peak at z1086 cm −1 was evident. It indicates the presence of C-O-C bonds inside the polymer structure, in accordance with the peak at 1733 cm −1 in the FTIR spectra recorded for the same material (Fig.…”

Research advances of microplastics and potential health risks of microplastics on terrestrial higher mammals: a bibliometric analysis and literature review

“… Joint toxicity In the environment, MPs usually coexist with multiple pollutants, and the toxicity caused by joint exposure to MPs and chemical pollutants can better reflect the effects in the real environment. On the one hand, MPs themselves can release plastic additives, including dissolved organic carbon (DOC), trihalomethanes (THMs), and other substances(Ateia et al, 2020 ). On the other hand, MPs adsorb multiple chemical pollutants from the environment and induce combined toxic effects on organisms, mainly including hydrophobic organic pollutants (such as polychlorinated biphenyls [PCBs], polycyclic aromatic hydrocarbons [PAHs] and personal care products) and heavy metals (Hg, Cr, Cd, Au, Cu, Pb, Zn and Ag).…”

Emerging investigator series: microplastic-based leachate formation under UV irradiation: the extent, characteristics, and mechanisms

“…In addition, DOM released from the microplastisphere may have direct ecological and health implications or indirect impacts such as disinfection byproduct formation. 10 There are a handful of studies investigating how MPs break down in the environment by using UV irradiation as simulated sunlight and by concurrently monitoring the changes in surface characteristics and leachate formation for various polymer types. 11,12 Polystyrene (PS) is the most common polymer chosen in these studies, followed by polypropylene (PP), polyvinyl chloride (PVC), and polyethylene (PE).…”