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Sorption of pharmaceuticals and personal care products to polyethylene debris

Environmental Science and Pollution Research 2016 395 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 45 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Kai Zhang, Kai Zhang, Kai Zhang, Kai Zhang, Chenxi Wu Kai Zhang, Chenxi Wu Chenxi Wu Kai Zhang, Kai Zhang, Kai Zhang, Kai Zhang, Kai Zhang, Kai Zhang, Kai Zhang, Kai Zhang, Chenxi Wu Kai Zhang, Chenxi Wu Chenxi Wu Kai Zhang, Kai Zhang, Kai Zhang, Kai Zhang, Kai Zhang, Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Kai Zhang, Kai Zhang, Kai Zhang, Xiaolong Huang, Kai Zhang, Chenxi Wu Kai Zhang, Chenxi Wu Kai Zhang, Kai Zhang, Chenxi Wu Chenxi Wu Kai Zhang, Chenxi Wu Chenxi Wu Chenxi Wu Jiantong Liu, Chenxi Wu Kai Zhang, Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Kai Zhang, Chenxi Wu Chenxi Wu Kai Zhang, Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Kai Zhang, Jiantong Liu, Kai Zhang, Chenxi Wu Chenxi Wu Kai Zhang, Chenxi Wu Chenxi Wu Chenxi Wu Kai Zhang, Chenxi Wu Chenxi Wu Chenxi Wu Chenxi Wu Kai Zhang, Jiantong Liu, Chenxi Wu Kai Zhang, Kai Zhang, Kai Zhang, Kai Zhang, Chenxi Wu

Summary

This study measured the sorption of pharmaceuticals and personal care products (PPCPs) — including carbamazepine, oxybenzone, and triclosan — onto polyethylene plastic debris. The results show that plastic debris can accumulate PPCPs from water and potentially deliver these bioactive compounds to organisms that ingest the contaminated plastic.

Polymers

Study Type Environmental

Presence of plastic debris in marine and freshwater ecosystems is increasingly reported. Previous research suggested plastic debris had a strong affiliation for many pollutants, such as polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and heavy metals. In this study, the sorption behavior of pharmaceuticals and personal care products (PPCPs), including carbamazepine (CBZ), 4-methylbenzylidene camphor (4MBC), triclosan (TCS), and 17α-ethinyl estradiol (EE2), to polyethylene (PE) debris (250 to 280 μm) was investigated. The estimated linear sorption coefficients (K d) are 191.4, 311.5, 5140, and 53,225 L/kg for CBZ, EE2, TCS, and 4MBC, and are related to their hydrophobicities. Increase of salinity from 0.05 to 3.5 % did not affect the sorption of 4MBC, CBZ, and EE2 but enhanced the sorption of TCS, likely due to the salting-out effect. Increase of dissolved organic matter (DOM) content using Aldrich humic acid (HA) as a proxy reduced the sorption of 4MBC, EE2, and TCS, all of which show a relatively strong affiliation to HA. Results from this work suggest that microplastics may play an important role in the fate and transport of PPCPs, especially for those hydrophobic ones.

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