Separation and Tracing of Anthropogenic Magnetite Nanoparticles in the Urban Atmosphere

	Separation and Tracing of Anthropogenic Magnetite Nanoparticles in the Urban Atmosphere
	Zhang, Qinghua; Lu, Dawei; Wang, Dingyi; Yang, Xuezhi; Zuo, Peijie; Yang, Hang; Fu, Qiang; Liu, Qian; Jiang, Guibin
	2020-08-04
Source Publication	ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN	0013-936X
Volume	54 Issue:15 Pages:9274-9284
Abstract	Nanosized magnetite is a highly toxic material due to its strong ability to generate reactive oxygen species in vivo, and the presence of magnetite NPs in the brain has been linked with aging and neurodegenerative diseases such as Alzheimer's disease. Recently, magnetite pollution nanoparticles (NPs) were found to be present in the human brain, heart, and blood, which raises great concerns about the health risks of airborne magnetite NPs. Here, we report the abundant presence and chemical multifingerprints (including high-resolution structural and elemental fingerprints) of magnetite NPs in the urban atmosphere. We establish a mission methodology for high-efficiency retrieving and accurate quantification of airborne magnetite NPs. We report the occurrence levels (annual mean concentration 75.5 +/- 33.2 ng m(-3) in Beijing with clear season variations) and the pollution characteristics of airborne magnetite NPs. Based on the chemical multifingerprints of the NPs, we identify and estimate the contributions of the major emission sources for airborne magnetite NPs. We also give an assessment of human exposure risks of airborne magnetite NPs. Our findings support the identification of airborne magnetite NPs as a threat to human health.
Department	环境化学与生态毒理学国家重点实验室
Document Type	期刊论文
Identifier	https://ir.rcees.ac.cn/handle/311016/44803
Collection	环境化学与生态毒理学国家重点实验室
Recommended Citation GB/T 7714	Zhang, Qinghua,Lu, Dawei,Wang, Dingyi,et al. Separation and Tracing of Anthropogenic Magnetite Nanoparticles in the Urban Atmosphere[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2020,54(15):9274-9284.
APA	Zhang, Qinghua.,Lu, Dawei.,Wang, Dingyi.,Yang, Xuezhi.,Zuo, Peijie.,...&Jiang, Guibin.(2020).Separation and Tracing of Anthropogenic Magnetite Nanoparticles in the Urban Atmosphere.ENVIRONMENTAL SCIENCE & TECHNOLOGY,54(15),9274-9284.
MLA	Zhang, Qinghua,et al."Separation and Tracing of Anthropogenic Magnetite Nanoparticles in the Urban Atmosphere".ENVIRONMENTAL SCIENCE & TECHNOLOGY 54.15(2020):9274-9284.

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