Comparison of atmospheric nitrous acid during severe haze and clean periods in Beijing, China
文献类型：期刊论文
| 作者 | Hou, Siqi1; Tong, Shengrui1; Ge, Maofa1; An, Junling2 |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2016 |
| 卷号 | 124页码:199-206 |
| 关键词 | Nitrous acid Nitrogen oxides PM2.5 Haze |
| 英文摘要 | Continuous measurements were made in Beijing from 22 February to 2 March in 2014, including a severe haze period and a relatively clean period. The concentration of nitrous acid (HONO) ranged from 0.49 to 3.24 ppbv in the severe haze period and from 0.28 to 1.52 ppbv in the clean period. Daytime mean concentrations of SO2, NO, NO2, and NOx in the severe haze period were 58.7 ppbv, 23.2 ppbv, 48.0 ppbv, 71.2 ppbv, respectively, much higher than those in the clean period. The diurnal variations of HONO, NO, NO2, and NOx were weaker in the severe haze period, whereas O-3 diurnal variations were opposite with other species in both periods. Moreover, we found better correlations between HONO and NO2 in the clean period than in the severe haze period. Besides, good correlations between HONO and PM2.5, and between PM2.5 and HONO/NO2 ratio were found when PM2.5 concentrations were <350 mu g m(-3). When PM2.5 concentrations were >350 mu g m(-3), HONO remained nearly invariable, with a value of 2.95 ppbv. Additionally, very good correlations between HONO and RH (R-2 = 0.839), and between HONO/NO2 ratio and RH (R-2 = 0.508) were found when RH was <= 65%. The calculated daytime average unknown HONO source rate was 1.85 ppbv h(-1) in the severe haze period, higher than 1.26 ppbv h(-1) in the clean period. (C) 2015 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-03-15 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/29723]  |
| 专题 | 化学研究所_分子动态与稳态结构实验室 |
| 作者单位 | 1.Chinese Acad Sci, BNLMS, Inst Chem, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100190, Peoples R China 2.Chinese Acad Sci, IAP, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hou, Siqi,Tong, Shengrui,Ge, Maofa,et al. Comparison of atmospheric nitrous acid during severe haze and clean periods in Beijing, China[J]. ATMOSPHERIC ENVIRONMENT,2016,124:199-206. |
| APA | Hou, Siqi,Tong, Shengrui,Ge, Maofa,&An, Junling.(2016).Comparison of atmospheric nitrous acid during severe haze and clean periods in Beijing, China.ATMOSPHERIC ENVIRONMENT,124,199-206. |
| MLA | Hou, Siqi,et al."Comparison of atmospheric nitrous acid during severe haze and clean periods in Beijing, China".ATMOSPHERIC ENVIRONMENT 124(2016):199-206. |
入库方式： OAI收割
来源：化学研究所
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