Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-13495-2018 |
Snow scavenging and phase partitioning of nitrated and oxygenated aromatic hydrocarbons in polluted and remote environments in central Europe and the European Arctic | |
Shahpoury, Pourya1,2; Kitanovski, Zoran1,3; Lammel, Gerhard1,4 | |
2018-09-24 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
![]() |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:18页码:13495-13510 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Canada; Slovenia; Czech Republic |
英文摘要 | Nitrated and oxygenated polycyclic aromatic hydrocarbons (N/OPAHs) are emitted in combustion processes and formed in polluted air. Their environmental cycling through wet deposition has hardly been studied. Fresh snow samples at urban and rural sites in central Europe, as well as surface snow from a remote site in Svalbard, were analysed for 17 NPAHs, 8 OPAHs, and 11 nitrated mono-aromatic hydrocarbons (NMAHs), of which most N/OPAHs as well as nitrocatechols, nitrosalicylic acids, and 4-nitroguaiacol are studied for the first time in precipitation. In order to better understand the scavenging mechanisms, the particulate mass fractions (theta) at 273 K were predicted using a multi-phase gasparticle partitioning model based on polyparameter linear free energy relationships. Sigma NPAH concentrations were 1.217.6 and 8.8-19.1 ng L-1 at urban and rural sites, whereas EOPAHs were 79.8-955.2 and 343.3-1757.4 ng L-1 at these sites, respectively. 9,10-anthraquinone was predominant in snow aqueous and particulate phases. NPAHs were only found in the particulate phase with 9-nitroanthracene being predominant followed by 2-nitrofluoranthene. Among NMAHs, 4-nitrophenol showed the highest abundance in both phases. The levels found for nitrophenols were in the same range or lower than those reported in the 1980s and 1990s. The lowest levels of Sigma N/OPAHs and Sigma NMAHs were found at the remote site (3.5 and 390.5 ng L-1, respectively). N/OPAHs preferentially partitioned in snow particulate phase in accordance with predicted theta, whereas NMAHs were predominant in the aqueous phase, regardless of theta. It is concluded that the phase distribution of non-polar N/OPAHs in snow is determined by their gas-particle partitioning prior to snow scavenging, whereas that for polar particulate phase substances, i.e. NMAHs, is determined by an interplay between gas-particle partitioning in the aerosol and dissolution during in- or below-cloud scavenging. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000445398900001 |
WOS关键词 | CHROMATOGRAPHY-MASS SPECTROMETRY ; BIOMASS-BURNING AEROSOL ; ORGANIC-COMPOUNDS ; BROWN CARBON ; PARTICULATE MATTER ; AMBIENT AIR ; NITRO-PAH ; POLYCHLORINATED-BIPHENYLS ; OXIDATIVE STRESS ; LIGHT-ABSORPTION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/29437 |
专题 | 地球科学 |
作者单位 | 1.Max Planck Inst Chem, Multiphase Chem Dept, Mainz, Germany; 2.Environm & Climate Change Canada, Air Qual Proc Res Sect, Toronto, ON, Canada; 3.Natl Inst Chem, Dept Food Chem, Ljubljana, Slovenia; 4.Masaryk Univ, Res Ctr Tox Cpds Environm, Brno, Czech Republic |
推荐引用方式 GB/T 7714 | Shahpoury, Pourya,Kitanovski, Zoran,Lammel, Gerhard. Snow scavenging and phase partitioning of nitrated and oxygenated aromatic hydrocarbons in polluted and remote environments in central Europe and the European Arctic[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(18):13495-13510. |
APA | Shahpoury, Pourya,Kitanovski, Zoran,&Lammel, Gerhard.(2018).Snow scavenging and phase partitioning of nitrated and oxygenated aromatic hydrocarbons in polluted and remote environments in central Europe and the European Arctic.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(18),13495-13510. |
MLA | Shahpoury, Pourya,et al."Snow scavenging and phase partitioning of nitrated and oxygenated aromatic hydrocarbons in polluted and remote environments in central Europe and the European Arctic".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.18(2018):13495-13510. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论