PM1 carbonaceous aerosols during winter in a typical valley city of western China: Vertical profiles and the key influencing factors
文献类型：期刊论文
| 作者 | Zhao, Suping1,2,3; Yu, Ye1; Yin, Daiying4; Qin, Dahe3; Yu, Zhousuo5; Dong, Longxiang1; Yang, Jiancai6; Mao, Zhuliang5; He, Jianjun7,8; Li, Ping1 |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2019-04-01 |
| 卷号 | 202页码:75-92 |
| ISSN号 | 1352-2310 |
| 关键词 | Carbonaceous aerosols Vertical profiles Boundary-layer Valley city Clustering analysis |
| DOI | 10.1016/j.atmosenv.2019.01.030 |
| 通讯作者 | Zhao, Suping(zhaosp@lzb.ac.cn) |
| 英文摘要 | To fill the blank on vertical profiles of carbonaceous aerosols during winter, the first in situ vertical measurements of organic and elemental carbon (OC, EC) from ground level to 620 m were conducted by means of high topographic relief in a typical valley city of Lanzhou, northwest China. The key factors (meteorology and sources) affecting the vertical distributions also were revealed by clustering technique and principal component analysis. Mean OC and EC concentrations were (16.2 +/- 8.9) mu g m(-3) and (5.1 +/- 2.1) mu g m(-3) during the study periods near the ground. More uniformly vertical distributions of carbonaceous aerosols during daytime than those during nighttime with OC (EC) decreasing rates of similar to 1.45 (similar to 0.32) mu g m(-3) 100 m(-1) during nighttime and similar to 0.84 (similar to 0.09) mu g m(-3) 100 m(-1) during daytime. Three distinct types of OC (EC) vertical profiles were determined by clustering technique. The cluster with high concentrations of OC (33.7 +/- 5.7 mu g m(-3)) and EC (10.5 +/- 7.7 mu g m(-3)) near the ground surface was induced largely by temperature inversion around the ground. The OC (EC) differences between the surface and the hilltop increased by 14.21 (2.45) mu g m(-3) when inversion layer depth increased by 100 m. Winter carbonaceous aerosols were more significantly affected by atmospheric stratification near the ground, while those were impacted together by vertical and horizontal dispersions at the hilltop. The primary emissions from coal combustion or biomass burning for heating at the hilltop and motor vehicles near the ground also had an important effect on OC (EC) vertical profiles. The emissions from coal burning and gasoline vehicles accounted for 60%-70% of carbonaceous aerosols in urban areas of Lanzhou. Furthermore, the contributions of gasoline vehicles during daytime near the surface(similar to 20%) and biomass burning at the hilltop (similar to 15%) were larger due to the impact of human activities. |
| 收录类别 | SCI |
| WOS关键词 | SECONDARY ORGANIC AEROSOL ; BLACK CARBON ; SOURCE APPORTIONMENT ; SIZE DISTRIBUTION ; ELEMENTAL CARBON ; AIR-POLLUTION ; SICHUAN BASIN ; CHEMICAL-COMPOSITION ; TEMPORAL VARIATIONS ; BROWN CARBON |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000461525900008 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555544 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhao, Suping |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou 730000, Gansu, Peoples R China 2.Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200433, Peoples R China 3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Gansu, Peoples R China 4.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Gansu, Peoples R China 5.Lanzhou Environm Monitoring Stn, Lanzhou 730000, Gansu, Peoples R China 6.Lanzhou Cent Weather Stn, Lanzhou 730000, Gansu, Peoples R China 7.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China 8.Chinese Acad Meteorol Sci, Key Lab Atmospher Chem CMA, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Suping,Yu, Ye,Yin, Daiying,et al. PM1 carbonaceous aerosols during winter in a typical valley city of western China: Vertical profiles and the key influencing factors[J]. ATMOSPHERIC ENVIRONMENT,2019,202:75-92. |
| APA | Zhao, Suping.,Yu, Ye.,Yin, Daiying.,Qin, Dahe.,Yu, Zhousuo.,...&Li, Ping.(2019).PM1 carbonaceous aerosols during winter in a typical valley city of western China: Vertical profiles and the key influencing factors.ATMOSPHERIC ENVIRONMENT,202,75-92. |
| MLA | Zhao, Suping,et al."PM1 carbonaceous aerosols during winter in a typical valley city of western China: Vertical profiles and the key influencing factors".ATMOSPHERIC ENVIRONMENT 202(2019):75-92. |
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来源：寒区旱区环境与工程研究所
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