Loading...
Please wait, while we are loading the content...
Similar Documents
Extreme haze pollution in Beijing during January 2013: chemical characteristics, formation mechanism and role of fog processing
| Content Provider | Semantic Scholar |
|---|---|
| Author | Huang, Kan Zhuang, Guoshun Wang, Qiongzhen Fu, Joshua S. Lin, Yanfen Liu, Tingna Han, Long Deng, Congrui |
| Copyright Year | 2014 |
| Abstract | Abstract. Severe haze hovered over large areas of China in January 2013 right after the public release of PM2.5 data of major cities in China at the very first time. This historical severe haze emerged over the northern China with monthly average concentrations of PM2.5, SO2, and NO2 exceeding 225, 200, and 80 μg m−3, respectively. Surface aerosol mean concentration of Beijing in January 2013 reached record high (only slightly lower than 2006) compared to historical data from 2003–2012, but with the largest daily fluctuation. Anomalous meteorological conditions in 2013 compared to the mean climatology from 2007–2012 were especially favorable for the formation of haze, such as higher humidity, lower temperature, lower PBL height, lower wind speed, and the high frequency of fog occurrences. The field campaign in Beijing showed an extremely high PM2.5 average concentration of 299.2 ± 79.1μg m−3 with extremely low visibility of 0.92 ± 0.82 km during an episode of high relative humidity with fog events. High AOD (Aerosol Optical Depth) was observed during fog days but with relatively low Angstrom exponent ( |
| Starting Page | 7517 |
| Ending Page | 7556 |
| Page Count | 40 |
| File Format | PDF HTM / HTML |
| DOI | 10.5194/acpd-14-7517-2014 |
| Volume Number | 14 |
| Alternate Webpage(s) | http://www.atmos-chem-phys-discuss.net/14/7517/2014/acpd-14-7517-2014.pdf |
| Alternate Webpage(s) | http://www.atmos-chem-phys-discuss.net/14/7517/2014/acpd-14-7517-2014-print.pdf |
| Alternate Webpage(s) | https://www.atmos-chem-phys-discuss.net/14/7517/2014/acpd-14-7517-2014-print.pdf |
| Alternate Webpage(s) | http://acs.engr.utk.edu/publications/2014_huang_1_acpd.pdf |
| Alternate Webpage(s) | https://doi.org/10.5194/acpd-14-7517-2014 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
