Exploring the toxicity of the aged styrene-butadiene rubber microplastics to petroleum hydrocarbon-degrading bacteria under compound pollution system

As a new pollutant, microplastics have increasingly drawn public attention to its toxic behavior in the environment. The aim was to investigate the effect of styrene-butadiene-rubber microplastics (mSBR) with different degrees of aging on petroleum hydrocarbon (PHC) degrading bacteria in an environm...

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Autores principales:	Changrong Zhao, Tong Xu, Miao He, Kinjal J. Shah, Zhaoyang You, Ting Zhang, Muhammad Zubair
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Aged microplastics Cadmium Petroleum Hydrocarbon Bacterial growth Toxic effect Environmental pollution TD172-193.5 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/c2657dd63a454f92a88a7451aa5707b2
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spelling	oai:doaj.org-article:c2657dd63a454f92a88a7451aa5707b22021-11-06T04:16:13ZExploring the toxicity of the aged styrene-butadiene rubber microplastics to petroleum hydrocarbon-degrading bacteria under compound pollution system0147-651310.1016/j.ecoenv.2021.112903https://doaj.org/article/c2657dd63a454f92a88a7451aa5707b22021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0147651321010150https://doaj.org/toc/0147-6513As a new pollutant, microplastics have increasingly drawn public attention to its toxic behavior in the environment. The aim was to investigate the effect of styrene-butadiene-rubber microplastics (mSBR) with different degrees of aging on petroleum hydrocarbon (PHC) degrading bacteria in an environment with simultaneously existing pollutants. A series of experiments were carried out to investigate the changes in the physical and chemical properties of mSBR with aging and to examine the influence of these changes on the inhibition of PHC-degrading bacteria by mSBR in the vicinity of coexisting pollutants. The results showed that in the early stage of ultraviolet aging (10d), the particle surface shows wrinkles, but the structure is intact. After reaching the late stage of aging (20d), nano-scale fragments were generated on the surface of mSBR, the average particle size decreased from 3.074 µm to 2.297 µm, and the zeta potential increased from − 25.1 mV to − 33.1 mV. The inhibitory effect of bacteria is greater. At the same time, these changes in the physicochemical properties increase the adsorption effect of Cd by 20%, and also improve the stability of mSBR in solution, whereby bacterial growth is inhibited by inhibiting the LPO activity and protein concentration of PHC degrading bacteria.Changrong ZhaoTong XuMiao HeKinjal J. ShahZhaoyang YouTing ZhangMuhammad ZubairElsevierarticleAged microplasticsCadmiumPetroleum HydrocarbonBacterial growthToxic effectEnvironmental pollutionTD172-193.5Environmental sciencesGE1-350ENEcotoxicology and Environmental Safety, Vol 227, Iss , Pp 112903- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Aged microplastics Cadmium Petroleum Hydrocarbon Bacterial growth Toxic effect Environmental pollution TD172-193.5 Environmental sciences GE1-350
spellingShingle	Aged microplastics Cadmium Petroleum Hydrocarbon Bacterial growth Toxic effect Environmental pollution TD172-193.5 Environmental sciences GE1-350 Changrong Zhao Tong Xu Miao He Kinjal J. Shah Zhaoyang You Ting Zhang Muhammad Zubair Exploring the toxicity of the aged styrene-butadiene rubber microplastics to petroleum hydrocarbon-degrading bacteria under compound pollution system
description	As a new pollutant, microplastics have increasingly drawn public attention to its toxic behavior in the environment. The aim was to investigate the effect of styrene-butadiene-rubber microplastics (mSBR) with different degrees of aging on petroleum hydrocarbon (PHC) degrading bacteria in an environment with simultaneously existing pollutants. A series of experiments were carried out to investigate the changes in the physical and chemical properties of mSBR with aging and to examine the influence of these changes on the inhibition of PHC-degrading bacteria by mSBR in the vicinity of coexisting pollutants. The results showed that in the early stage of ultraviolet aging (10d), the particle surface shows wrinkles, but the structure is intact. After reaching the late stage of aging (20d), nano-scale fragments were generated on the surface of mSBR, the average particle size decreased from 3.074 µm to 2.297 µm, and the zeta potential increased from − 25.1 mV to − 33.1 mV. The inhibitory effect of bacteria is greater. At the same time, these changes in the physicochemical properties increase the adsorption effect of Cd by 20%, and also improve the stability of mSBR in solution, whereby bacterial growth is inhibited by inhibiting the LPO activity and protein concentration of PHC degrading bacteria.
format	article
author	Changrong Zhao Tong Xu Miao He Kinjal J. Shah Zhaoyang You Ting Zhang Muhammad Zubair
author_facet	Changrong Zhao Tong Xu Miao He Kinjal J. Shah Zhaoyang You Ting Zhang Muhammad Zubair
author_sort	Changrong Zhao
title	Exploring the toxicity of the aged styrene-butadiene rubber microplastics to petroleum hydrocarbon-degrading bacteria under compound pollution system
title_short	Exploring the toxicity of the aged styrene-butadiene rubber microplastics to petroleum hydrocarbon-degrading bacteria under compound pollution system
title_full	Exploring the toxicity of the aged styrene-butadiene rubber microplastics to petroleum hydrocarbon-degrading bacteria under compound pollution system
title_fullStr	Exploring the toxicity of the aged styrene-butadiene rubber microplastics to petroleum hydrocarbon-degrading bacteria under compound pollution system
title_full_unstemmed	Exploring the toxicity of the aged styrene-butadiene rubber microplastics to petroleum hydrocarbon-degrading bacteria under compound pollution system
title_sort	exploring the toxicity of the aged styrene-butadiene rubber microplastics to petroleum hydrocarbon-degrading bacteria under compound pollution system
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/c2657dd63a454f92a88a7451aa5707b2
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Exploring the toxicity of the aged styrene-butadiene rubber microplastics to petroleum hydrocarbon-degrading bacteria under compound pollution system

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