Sources and atmospheric processes determining airborne concentrations of polycyclic aromatic hydrocarbons and their degradation products

决定空气中多环芳烃及其降解产物浓度的来源和大气过程

• 批准号: NE/F016581/1
• 负责人: Roy Harrison
• 金额: $ 81.49万
• 依托单位: University of Birmingham
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2008
• 资助国家: 英国
• 起止时间: 2008 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FF016581%2F1
• 关键词: Sources; atmospheric; processes; determining; airborne

The polycyclic aromatic hydrocarbons are a group of chemical substances present in the atmosphere which are known to be a cause of lung cancer. They are formed when carbon-containing fuels such as coal, oil or gas are burned, as well as being emitted from some industrial processes such as aluminium smelting. Whilst road vehicles and home heating are known to be significant sources, the relative amounts coming from different sources are not well known and this research intends to use measurements of these compounds in the atmosphere to infer which sources are mainly responsible. It is also known that polycyclic aromatic hydrocarbons are changed by chemical reactions in the atmosphere but the rates of these reactions are not well known and these are also to be studied. These reactions cause the formation of other chemicals known as PAH-derivatives for which measurement methods will be developed. The outcome will be a much improved understanding of the sources and processes affecting these compounds in the atmosphere leading ultimately to the possibility of more cost-effective control measures being taken.

多环芳烃是一组存在于大气中的化学物质，已知是肺癌的原因。它们是在煤、石油或天然气等含碳燃料燃烧时形成的，也是在铝冶炼等工业过程中排放的。虽然道路车辆和家庭供暖是已知的重要来源，但来自不同来源的相对数量并不为人所知，本研究旨在使用大气中这些化合物的测量来推断哪些来源是主要责任。人们还知道，多环芳烃在大气中发生化学反应后会发生变化，但这些反应的速率并不为人所知，这些反应也有待研究。这些反应会导致其他化学物质的形成，称为PAH衍生物，测量方法将被开发出来。其结果将是更好地了解影响大气中这些化合物的来源和过程，最终导致采取更具成本效益的控制措施。

项目成果

Use of a versatile high efficiency multiparallel denuder for the sampling of PAHs in ambient air: gas and particle phase concentrations, particle size distribution and artifact formation.

• DOI: 10.1021/es402937d
• 发表时间: 2014
• 期刊: Environmental science & technology
• 影响因子: 11.4
• 作者: J. Delgado-Saborit;C. Stark;R. Harrison

Diurnal variability of polycyclic aromatic compound (PAC) concentrations: Relationship with meteorological conditions and inferred sources

• DOI: 10.1016/j.atmosenv.2015.09.050
• 发表时间: 2015-12-01
• 期刊: ATMOSPHERIC ENVIRONMENT
• 影响因子: 5
• 作者: Alam, Mohammed S.;Keyte, Ian J.;Harrison, Roy M.
• 通讯作者: Harrison, Roy M.

Investigating PAH relative reactivity using congener profiles, quinone measurements and back trajectories

使用同系物谱、醌测量和返回轨迹研究 PAH 相对反应性

• DOI: 10.5194/acpd-13-25741-2013
• 发表时间: 2013
• 作者: Alam M

Analysis of atmospheric concentrations of quinones and polycyclic aromatic hydrocarbons in vapour and particulate phases

• DOI: 10.1016/j.atmosenv.2013.05.080
• 发表时间: 2013-10-01
• 期刊: ATMOSPHERIC ENVIRONMENT
• 影响因子: 5
• 作者: Delgado-Saborit, Juana Maria;Alam, Mohammed S.;Harrison, Roy M.
• 通讯作者: Harrison, Roy M.

Using atmospheric measurements of PAH and quinone compounds at roadside and urban background sites to assess sources and reactivity

• DOI: 10.1016/j.atmosenv.2013.04.068
• 发表时间: 2013-10-01
• 期刊: ATMOSPHERIC ENVIRONMENT
• 影响因子: 5
• 作者: Alam, Mohammed S.;Delgado-Saborit, Juana Maria;Harrison, Roy M.
• 通讯作者: Harrison, Roy M.