Fluorescent water-soluble organic aerosols in the High Arctic atmosphere
文献类型：SCI/SSCI论文
| 作者 | Fu P. Q.; Kawamura, K.; Chen, J.; Qin, M. Y.; Ren, L. J.; Sun, Y. L.; Wang, Z. F.; Barrie, L. A.; Tachibana, E.; Ding, A. J. |
| 发表日期 | 2015 |
| 关键词 | humic-like particulate matter marine atmosphere size distribution fungal spores carbon spectroscopy particles pollution climate |
| 英文摘要 | Organic aerosols are ubiquitous in the earth's atmosphere. They have been extensively studied in urban, rural and marine environments. However, little is known about the fluorescence properties of water-soluble organic carbon (WSOC) or their transport to and distribution in the polar regions. Here, we present evidence that fluorescent WSOC is a substantial component of High Arctic aerosols. The ratios of fluorescence intensity of protein-like peak to humic-like peak generally increased from dark winter to early summer, indicating an enhanced contribution of protein-like organics from the ocean to Arctic aerosols after the polar sunrise. Such a seasonal pattern is in agreement with an increase of stable carbon isotope ratios of total carbon (delta C-13(TC)) from -26.8 parts per thousand to -22.5 parts per thousand. Our results suggest that Arctic aerosols are derived from a combination of the long-range transport of terrestrial organics and local sea-to-air emission of marine organics, with an estimated contribution from the latter of 8.7-77% (mean 45%). |
| 出处 | Scientific Reports |
| 卷 | 5 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 2045-2322 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/38433]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Fu P. Q.,Kawamura, K.,Chen, J.,et al. Fluorescent water-soluble organic aerosols in the High Arctic atmosphere. 2015. |
入库方式： OAI收割
来源：地理科学与资源研究所
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