Highly Elevated Levels and Particle-Size Distributions of Environmentally Persistent Free Radicals in Haze-Associated Atmosphere

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Highly Elevated Levels and Particle-Size Distributions of Environmentally Persistent Free Radicals in Haze-Associated Atmosphere
	Xu, Yang; Yang, Lili; Liu, Guorui; Zheng, Minghui; Jin, Rong; Zhu, Qingqing; Zhao, Yuyang; Wu, Xiaolin
刊名	ENVIRONMENTAL SCIENCE & TECHNOLOGY
	2017-10-14
卷号	51 期号:14 页码:7936-7944
英文摘要	Levels and particle-size distributions of environmentally persistent free radicals (EPFRs) in haze-associated atmospheric particulate matter (PM) have not been highlighted, even though they may enter the human body along with PM and adversely affect human health. This study quantified the levels of EPFRs in airborne PM with different aerodynamic diameters (d(ae)) using electron paramagnetic resonance (EPR) spectroscopy. EPR spectra showed a single, unstructured signal from persistent semiquinone radicals. The average concentration of EPFRs in the airborne PM during haze events was 2.18 x 12(20) spins/g (range: 3.06 x 10(19)-6.23 X 10(20) spins/g), approximately 2 orders of magnitude higher than that reported previously in the US atmosphere. Particle-size distributions of EPFRs in four different PM fractions (d(ae) > 10 mu m, 10 mu m < d(ae) < 2.5 mu m, 2.5 mu m
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39329]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Xu, Yang,Yang, Lili,Liu, Guorui,et al. Highly Elevated Levels and Particle-Size Distributions of Environmentally Persistent Free Radicals in Haze-Associated Atmosphere[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2017,51(14):7936-7944.
APA	Xu, Yang.,Yang, Lili.,Liu, Guorui.,Zheng, Minghui.,Jin, Rong.,...&Wu, Xiaolin.(2017).Highly Elevated Levels and Particle-Size Distributions of Environmentally Persistent Free Radicals in Haze-Associated Atmosphere.ENVIRONMENTAL SCIENCE & TECHNOLOGY,51(14),7936-7944.
MLA	Xu, Yang,et al."Highly Elevated Levels and Particle-Size Distributions of Environmentally Persistent Free Radicals in Haze-Associated Atmosphere".ENVIRONMENTAL SCIENCE & TECHNOLOGY 51.14(2017):7936-7944.