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Adsorption and Desorption of Steroid Hormones by Microplastics in Seawater

Bulletin of Environmental Contamination and Toxicology 2020 77 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 40 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Jian Lü, Yongming Luo Jian Lü, Jian Lü, Cui Zhang, Jie Wu, Jian Lü, Jian Lü, Yongming Luo Yongming Luo Jie Wu, Jie Wu, Jun Wu, Jian Lü, Jian Lü, Jian Lü, Jian Lü, Jun Wu, Jian Lü, Jian Lü, Jian Lü, Yongming Luo Yongming Luo Yongming Luo Yongming Luo Jun Wu, Jun Wu, Jun Wu, Jun Wu, Jun Wu, Jian Lü, Jun Wu, Jian Lü, Jian Lü, Jun Wu, Jun Wu, Yongming Luo Yongming Luo Jian Lü, Jian Lü, Jun Wu, Jun Wu, Jie Wu, Cui Zhang, Yongming Luo Jun Wu, Jun Wu, Jun Wu, Jun Wu, Jun Wu, Jun Wu, Cui Zhang, Jun Wu, Jian Lü, Jun Wu, Yongming Luo Jun Wu, Jun Wu, Jun Wu, Yongming Luo Jun Wu, Jun Wu, Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo Cui Zhang, Cui Zhang, Jun Wu, Yongming Luo Yongming Luo Yongming Luo Yongming Luo Jian Lü, Yongming Luo Jun Wu, Yongming Luo Jun Wu, Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo Yongming Luo

Summary

Researchers evaluated the adsorption and desorption of the steroid hormones 17β-estradiol (E2) and 17α-ethynylestradiol (EE2) onto microplastics in seawater, finding that polymer type, particle size, salinity, pH, and humic acid concentration all influenced sorption behavior. The study provides mechanistic data relevant to assessing microplastics as vectors for endocrine-disrupting compounds in marine environments.

Body Systems

Endocrine

Study Type Environmental

This study evaluated the adsorption and desorption of 17β-estradiol (E2) and 17α-ethynylestradiol (EE2) on microplastics in seawater. The effects of microplastic materials and particle sizes on adsorption of E2 and EE2 were explored. Moreover, effects of salinity, pH, humic acid (HA) concentrations, and initial E2/EE2 concentrations on adsorption were also discussed. Increase in salinity, HA concentration, and initial E2/EE2 concentration would enhance adsorption of E2/EE2 on microplastics. Adsorption capacity of E2/EE2 firstly increased to reach the highest at pH of 8.0 and then decreased when pH further increased. Pseudo-second-order kinetics better fitted adsorption data of E2 while pseudo-first-order model yielded better fitting results for EE2. Freundlich isotherm was better to fit the adsorption data of E2 while Langmuir isotherm yielded better fitting results for EE2. Desorption capacity of E2/EE2 on microplastics was over 40% of its adsorption capacity. This study provides new insights on microplastics and endocrine disrupting chemicals.

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