Kinetic studies of heterogeneous reactions of particulate phosmet and parathion with NO3 radicals
文献类型：期刊论文
| 作者 | Liu, Changgeng; Yang, Bo; Zeng, Chenghua |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 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 |
| 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. |
入库方式： OAI收割
来源：生态环境研究中心
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