| Aerosol hygroscopicity and its link to chemical composition in the coastal atmosphere of Mace Head: marine and continental air masses | |
| Xu, Wei1,2,3,4; Oyadnevaite, Jurgita1,2; Fossum, Kirsten N.1,2; Lin, Chunshui3,4; Huang, Ru-Jin3,4,5; O'Dowd, Colin1,2; Ceburnis, Darius1,2 | |
| Corresponding Author | Huang, Ru-Jin(rujin.huang@ieecas.cn) ; O'Dowd, Colin(colin.odowd@nuigalway.ie) |
| 2020-03-30 | |
| Source Publication | ATMOSPHERIC CHEMISTRY AND PHYSICS
 |
| ISSN | 1680-7316 |
| Volume | 20Issue:6Pages:3777-3791 |
| Abstract | Chemical composition and hygroscopicity closure of marine aerosol in high time resolution has not been achieved yet due to the difficulty involved in measuring the refractory sea-salt concentration in near-real time. In this study, attempts were made to achieve closure for marine aerosol based on a humidified tandem differential mobility analyser (HTDMA) and a high-resolution time-of-flight aerosol mass spectrometer (AMS) for wintertime aerosol at Mace Head, Ireland. The aerosol hygroscopicity was examined as a growth factor (GF) at 90 % relative humidity (RH). The corresponding GFs of 35, 50, 75, 110 and 165 nm particles were 1.54 +/- 0.26, 1.60 +/- 0.29, 1.66 +/- 0.31, 1.72 +/- 0.29 and 1.78 +/- 0.30 (mean +/- standard deviation), respectively. Two contrasting air masses (continental and marine) were selected to study the temporal variation in hygroscopicity; the results demonstrated a clear diurnal pattern in continental air masses, whereas no diurnal pattern was found in marine air masses. In addition, wintertime aerosol was observed to be largely externally mixed in both of the contrasting air masses. Concurrent high time resolution PM1 (particulate matter <1 mu m) chemical composition data from combined AMS and MAAP measurements, comprising organic matter, non-sea-salt sulfate, nitrate, ammonium, sea salt and black carbon (BC), were used to predict aerosol hygroscopicity with the Zdanovskii-Stokes-Robinson (ZSR) mixing rule. Overall, good agreement (an R-2 value of 0.824 and a slope of 1.02) was found between the growth factor of 165 nm particles measured by the HTDMA (GF_HTDMA) and the growth factor derived from the AMS + MAAP bulk chemical composition (GF_AMS). Over 95 % of the estimated GF values exhibited less than a 10 % deviation for the whole dataset, and this deviation was mostly attributed to the neglected mixing state as a result of the bulk PM1 composition. |
| DOI | 10.5194/acp-20-3777-2020 |
| WOS Keyword | DIFFERENTIAL MOBILITY ANALYZER ; MIXING STATE ; ORGANIC AEROSOL ; PARTICLE HYGROSCOPICITY ; CCN ACTIVITY ; GROWTH ; SITE ; PARAMETERIZATION ; POLLUTION ; PACIFIC |
| Indexed By | SCI ; SCI |
| Language | 英语 |
| Funding Project | EPA-Ireland (AEROSOURCE)[2016-CCRP-MS-31] ; COLOSSAL COST Action[CA16109] ; China Scholarship Council[201706310154] ; MaREI (Marine and Renewable Energy Ireland) |
| WOS Research Area | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| Funding Organization | EPA-Ireland (AEROSOURCE) ; COLOSSAL COST Action ; China Scholarship Council ; MaREI (Marine and Renewable Energy Ireland) |
| WOS Subject | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| WOS ID | WOS:000522823500001 |
| Publisher | COPERNICUS GESELLSCHAFT MBH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ieecas.cn/handle/361006/12551 |
| Collection | 粉尘与环境研究室 第四纪科学与全球变化卓越创新中心 |
| Corresponding Author | Huang, Ru-Jin; O'Dowd, Colin |
| Affiliation | 1.Natl Univ Ireland Galway, Sch Phys, Ryan Inst, Ctr Climate & Air Pollut Studies, Univ Rd, Galway H91 CF50, Ireland 2.Natl Univ Ireland Galway, Marine Renewable Energy Ireland, Univ Rd, Galway H91 CF50, Ireland 3.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 4.Chinese Acad Sci, Key Lab Aerosol Chem & Phys, Inst Earth Environm, Xian 710061, Peoples R China 5.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Ocean Continental Climate & Environm, Qingdao 266061, Peoples R China |
| Recommended Citation GB/T 7714 | Xu, Wei,Oyadnevaite, Jurgita,Fossum, Kirsten N.,et al. Aerosol hygroscopicity and its link to chemical composition in the coastal atmosphere of Mace Head: marine and continental air masses[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(6):3777-3791. |
| APA | Xu, Wei.,Oyadnevaite, Jurgita.,Fossum, Kirsten N..,Lin, Chunshui.,Huang, Ru-Jin.,...&Ceburnis, Darius.(2020).Aerosol hygroscopicity and its link to chemical composition in the coastal atmosphere of Mace Head: marine and continental air masses.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(6),3777-3791. |
| MLA | Xu, Wei,et al."Aerosol hygroscopicity and its link to chemical composition in the coastal atmosphere of Mace Head: marine and continental air masses".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.6(2020):3777-3791. |
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