Kinetic studies of heterogeneous reactions of particulate phosmet and parathion with NO3 radicals

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

	Kinetic studies of heterogeneous reactions of particulate phosmet and parathion with NO3 radicals
	Liu, Changgeng; Yang, Bo; Zeng, Chenghua
刊名	CHEMOSPHERE
	2015-01
卷号	119 页码:1276-1280
关键词	Organophosphorous pesticides Heterogeneous kinetics NO3 radicals Aerosol mass spectrometry
英文摘要	Organophosphorous pesticides (OPPs) are ubiquitous pollutants in the atmospheric environment with adverse effects on human health. In this study, heterogeneous kinetics of particulate phosmet and parathion with NO3 radicals were investigated with a mixed-phase relative rate method. A vacuum ultraviolet photoionization aerosol time-of-flight mass spectrometer (VUV-ATOFMS) and an atmospheric gas analysis mass spectrometer were used to monitor online the decays of particulate OPPs and reference compound, respectively. Reactive uptake coefficients of NO3 radicals on phosmet and parathion particles were (0.12 +/- 0.03) and (0.14 +/- 0.04), respectively, calculated according to the measured OPPs loss ratios and the average NO3 concentrations. Additionally, the average effective rate constants for heterogeneous reactions of particulate phosmet and parathion with NO3 radicals measured under experimental conditions were (2.80 +/- 0.16) x 10(-12) and (2.97 +/- 0.13) x 10(-12) cm(3) molecule(-1) s(-1), respectively. The experimental results of these heterogeneous reactions in the aerosol state provide supplementary knowledge for kinetic behaviors of airborne OPPs particles. (C) 2014 Elsevier Ltd. All rights reserved.
研究领域[WOS]	Environmental Sciences
WOS记录号	WOS:000347739600174
公开日期	2016-03-15
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32608]
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	Liu, Changgeng,Yang, Bo,Zeng, Chenghua. Kinetic studies of heterogeneous reactions of particulate phosmet and parathion with NO3 radicals[J]. CHEMOSPHERE,2015,119:1276-1280.
APA	Liu, Changgeng,Yang, Bo,&Zeng, Chenghua.(2015).Kinetic studies of heterogeneous reactions of particulate phosmet and parathion with NO3 radicals.CHEMOSPHERE,119,1276-1280.
MLA	Liu, Changgeng,et al."Kinetic studies of heterogeneous reactions of particulate phosmet and parathion with NO3 radicals".CHEMOSPHERE 119(2015):1276-1280.