Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-8473-2017 |
In situ chemical composition measurement of individual cloud residue particles at a mountain site, southern China | |
Lin, Qinhao1; 39;an2 | |
2017-07-12 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:13 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | To investigate how atmospheric aerosol particles interact with chemical composition of cloud droplets, a ground-based counterflow virtual impactor (GCVI) coupled with a real-time single-particle aerosol mass spectrometer (SPAMS) was used to assess the chemical composition and mixing state of individual cloud residue particles in the Nanling Mountains (1690 m a.s.l.), southern China, in January 2016. The cloud residues were classified into nine particle types: aged elemental carbon (EC), potassium-rich (K-rich), amine, dust, Pb, Fe, organic carbon (OC), sodium-rich (Na-rich) and "Other". The largest fraction of the total cloud residues was the aged EC type (49.3 %), followed by the K-rich type (33.9 %). Abundant aged EC cloud residues that mixed internally with inorganic salts were found in air masses from northerly polluted areas. The number fraction (NF) of the K-rich cloud residues increased within southwesterly air masses from fire activities in Southeast Asia. When air masses changed from northerly polluted areas to southwesterly ocean and livestock areas, the amine particles increased from 0.2 to 15.1% of the total cloud residues. The dust, Fe, Pb, Na-rich and OC particle types had a low contribution (0.5-4.1 %) to the total cloud residues. Higher fraction of nitrate (88-89 %) was found in the dust and Na-rich cloud residues relative to sulfate (41-42 %) and ammonium (15-23 %). Higher intensity of nitrate was found in the cloud residues relative to the ambient particles. Compared with nonactivated particles, nitrate intensity decreased in all cloud residues except for dust type. To our knowledge, this study is the first report on in situ observation of the chemical composition and mixing state of individual cloud residue particles in China. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405466600001 |
WOS关键词 | SECONDARY ORGANIC AEROSOL ; CLIMATE MODEL ECHAM5-HAM ; BIOMASS-BURNING AEROSOLS ; FLIGHT MASS-SPECTROMETRY ; MIXED-PHASE CLOUDS ; MIXING STATE ; HYGROSCOPIC GROWTH ; MINERAL DUST ; DROPLET ACTIVATION ; OPTICAL-PROPERTIES |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/31111 |
专题 | 地球科学 |
作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China; 2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Ut, Guangzhou 510640, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Brechtel Mfg Inc, Hayward, CA 94544 USA; 5.Jinan Univ, Atmospher Environm Inst Safety & Pollut Control, Guangzhou 510632, Guangdong, Peoples R China; 6.Guangdong Environm Monitoring Ctr, State Environm Protect Key Lab Reg Air Qual Monit, Guangzhou 510308, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Lin, Qinhao,39;an. In situ chemical composition measurement of individual cloud residue particles at a mountain site, southern China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(13). |
APA | Lin, Qinhao,&39;an.(2017).In situ chemical composition measurement of individual cloud residue particles at a mountain site, southern China.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(13). |
MLA | Lin, Qinhao,et al."In situ chemical composition measurement of individual cloud residue particles at a mountain site, southern China".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.13(2017). |
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