| Title | Concentrations and spatial distribution of polycyclic aromatic hydrocarbons (PAHs) and nitrated PAHs (NPAHs) in the atmosphere of North China, and the transformation from PAHs to NPAHs |
| Authors | Lin, Yan Qiu, Xinghua Ma, Yiqiu Ma, Jin Zheng, Mei Shao, Min |
| Affiliation | Peking Univ, Ctr Environm & Hlth, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100871, Peoples R China. Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China. |
| Keywords | Polycyclic aromatic hydrocarbons Nitrated polycyclic aromatic hydrocarbons Passive air sampler North China Atmospheric reaction PASSIVE AIR SAMPLERS PERSISTENT ORGANIC POLLUTANTS GRIDDED FIELD OBSERVATIONS NITRO-PAHS POLYCHLORINATED NAPHTHALENES ORGANOCHLORINE PESTICIDES NOX EMISSIONS RURAL TRENDS ASSESS URBAN OH |
| Issue Date | 2015 |
| Publisher | environmental pollution |
| Citation | ENVIRONMENTAL POLLUTION.2015,196,164-170. |
| Abstract | The occurrence of polycyclic aromatic hydrocarbons (PAHs) and nitrated derivatives (NPAHs), as well as their transformation may have significant health impacts on humans. To investigate the level, spatial distribution and the transformation process of PAHs and NPAHs in North China, we performed a gridded field passive air sampling campaign in summer of 2011. The median concentration of 25 PAH congeners and 13 NPAHs was 294 ng m(-3) (or 26.7 mu g sample(-1)) and 203 ng sample(-1), respectively. Relative higher level of PAHs in Shanxi Province and NPAHs in megacities was observed. In North China, coal/biomass combustion and photochemical formation was the predominant source of PAHs and NPAHs, respectively. To investigate the relationship between these pollutants, a model incorporating NPAHs, PAHs and NO2 was established, and the result indicated that NO2 will promote the transformation processes from PAHs to NPAHs, which may increase the total toxicity of PAH-NPAH mixtures. (C) 2014 Elsevier Ltd. All rights reserved. |
| URI | http://hdl.handle.net/20.500.11897/158745 |
| ISSN | 0269-7491 |
| DOI | 10.1016/j.envpol.2014.10.005 |
| Indexed | SCI(E) PubMed |
| Appears in Collections: | 环境科学与工程学院 环境模拟与污染控制国家重点联合实验室 |
