Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2019.104815 |
Aerosol hygroscopicity: Hygroscopic growth proxy based on visibility for low-cost PM monitoring | |
Molnar, Agnes1,2; Imre, Kornelia1,2; Ferenczi, Zita3; Kiss, Gyula1,2; Gelencser, Andras2 | |
2020-05-15 | |
发表期刊 | ATMOSPHERIC RESEARCH
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ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2020 |
卷号 | 236 |
文章类型 | Article |
语种 | 英语 |
国家 | Hungary |
英文摘要 | Visibility is a simple indicator of air quality, and its drastic decrease is often related to poor air quality resulting from an increase in aerosol (particulate matter PM) concentration. Visibility is also related to water vapor due to the hygroscopicity of aerosols. As a result, water vapor may considerably influence PM measurements especially in the case of low-cost PM sensors which typically measure the ambient (wet) size of PM. Several possibilities are available to eliminate the effect of aerosol hygroscopicity on PM10 measurements, and we aimed to discuss and compare three of the methods: gravimetry (mass change of aerosol filters due to RH variation), application of the AIM model (based on aerosol chemical composition) and estimation derived from visibility data. In this work, we discuss how hygroscopic growth factors, obtained from different methods, are related, as well as the relevance of the hygroscopic growth rate derived from visibility observations in PM10 measurements. Moreover, since in PM monitoring - including the low-cost PM sensors - a quasi-real time, appropriate and simple method would be desirable for consideration of aerosol hygroscopicity, we aimed to construct a proxy for this purpose. We found that the visibility-derived mass growth rate could serve as a simple basis for these requirements. |
英文关键词 | Visibility Air quality Aerosol hygroscopicity PM measurements Low-cost PM sensors Proxy for aerosol hygroscopicity |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000525322900001 |
WOS关键词 | AMMONIUM-SULFATE ; AIR-POLLUTION ; WATER-UPTAKE ; HAZE EVENTS ; PARTICLES ; MASS ; EFFLORESCENCE ; TRENDS ; FOG ; EMISSIONS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | 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/278871 |
专题 | 地球科学 |
作者单位 | 1.MTA PE Air Chem Res Grp, Egyet 10, H-8200 Veszprem, Hungary; 2.Univ Pannonia, Egyet 10, H-8200 Veszprem, Hungary; 3.Hungarian Meteorol Serv, POB 39, H-1675 Budapest, Hungary |
推荐引用方式 GB/T 7714 | Molnar, Agnes,Imre, Kornelia,Ferenczi, Zita,et al. Aerosol hygroscopicity: Hygroscopic growth proxy based on visibility for low-cost PM monitoring[J]. ATMOSPHERIC RESEARCH,2020,236. |
APA | Molnar, Agnes,Imre, Kornelia,Ferenczi, Zita,Kiss, Gyula,&Gelencser, Andras.(2020).Aerosol hygroscopicity: Hygroscopic growth proxy based on visibility for low-cost PM monitoring.ATMOSPHERIC RESEARCH,236. |
MLA | Molnar, Agnes,et al."Aerosol hygroscopicity: Hygroscopic growth proxy based on visibility for low-cost PM monitoring".ATMOSPHERIC RESEARCH 236(2020). |
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