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Impact of microplastic addition on degradation of dibutyl phthalate in offshore sediments.
Mar Pollut Bull. 2021 Jan; 162:111881.MP

Abstract

In this work, effects of microplastics (polypropylene and polystyrene) at four concentrations (0.2-10%, w/w) on di-n-butyl phthalate (DBP) degradation in offshore sediments were investigated. DBP degradation percentage was enhanced by 0.2% microplastics (7.3-11.0% increment) but was reduced by 2-10% microplastics (3.7-27.7% decrement). Meanwhile, addition of microplastics with higher sorption ability to DBP led to lower DBP degradation percentage. The initial concentration of bioavailable DBP in sediments decreased with the increase of microplastic sorption ability to DBP and microplastic concentration. Microbial community structure was more significantly influenced by microplastic type than by microplastic concentration. Significant positive correlation was observed between the total relative abundances of dominant DBP-degraders and DBP degradation percentage. The results indicated that the changes in DBP degradation percentage were related to both DBP bioavailability and the total relative abundances of dominant DBP-degraders. Hence, persistence of the pollutant in the coastal environment was microplastic type- and concentration-dependent.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Chi J
School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, PR China. Electronic address: cjiechi@163.com.
Zhang H
School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, PR China.
Zhao D
School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, PR China.

MeSH

Dibutyl PhthalateEnvironmental PollutantsMicroplasticsPlasticsPolystyrenes

Pub Type(s)

Journal Article

Language

eng

PubMed ID

33302127

Citation

Chi, Jie, et al. "Impact of Microplastic Addition On Degradation of Dibutyl Phthalate in Offshore Sediments." Marine Pollution Bulletin, vol. 162, 2021, p. 111881.
Chi J, Zhang H, Zhao D. Impact of microplastic addition on degradation of dibutyl phthalate in offshore sediments. Mar Pollut Bull. 2021;162:111881.
Chi, J., Zhang, H., & Zhao, D. (2021). Impact of microplastic addition on degradation of dibutyl phthalate in offshore sediments. Marine Pollution Bulletin, 162, 111881. https://doi.org/10.1016/j.marpolbul.2020.111881
Chi J, Zhang H, Zhao D. Impact of Microplastic Addition On Degradation of Dibutyl Phthalate in Offshore Sediments. Mar Pollut Bull. 2021;162:111881. PubMed PMID: 33302127.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Impact of microplastic addition on degradation of dibutyl phthalate in offshore sediments. AU - Chi,Jie, AU - Zhang,Haitong, AU - Zhao,Dongxu, Y1 - 2020/12/07/ PY - 2020/06/18/received PY - 2020/08/07/revised PY - 2020/11/24/accepted PY - 2020/12/11/pubmed PY - 2021/2/10/medline PY - 2020/12/10/entrez KW - Degradation KW - Microplastics KW - Offshore sediments KW - di-n-Butyl phthalate (DBP) SP - 111881 EP - 111881 JF - Marine pollution bulletin JO - Mar Pollut Bull VL - 162 N2 - In this work, effects of microplastics (polypropylene and polystyrene) at four concentrations (0.2-10%, w/w) on di-n-butyl phthalate (DBP) degradation in offshore sediments were investigated. DBP degradation percentage was enhanced by 0.2% microplastics (7.3-11.0% increment) but was reduced by 2-10% microplastics (3.7-27.7% decrement). Meanwhile, addition of microplastics with higher sorption ability to DBP led to lower DBP degradation percentage. The initial concentration of bioavailable DBP in sediments decreased with the increase of microplastic sorption ability to DBP and microplastic concentration. Microbial community structure was more significantly influenced by microplastic type than by microplastic concentration. Significant positive correlation was observed between the total relative abundances of dominant DBP-degraders and DBP degradation percentage. The results indicated that the changes in DBP degradation percentage were related to both DBP bioavailability and the total relative abundances of dominant DBP-degraders. Hence, persistence of the pollutant in the coastal environment was microplastic type- and concentration-dependent. SN - 1879-3363 UR - https://www.unboundmedicine.com/medline/citation/33302127/Impact_of_microplastic_addition_on_degradation_of_dibutyl_phthalate_in_offshore_sediments_ DB - PRIME DP - Unbound Medicine ER -