DC Field | Value | Language |
---|---|---|
dc.contributor.author | Won, Wan-Sik | ko |
dc.contributor.author | Oh, Rosy | ko |
dc.contributor.author | Lee, Woojoo | ko |
dc.contributor.author | Ku, Sungkwan | ko |
dc.contributor.author | Su, Pei-Chen | ko |
dc.contributor.author | Yoon, Yong-Jin | ko |
dc.date.accessioned | 2021-09-08T06:30:31Z | - |
dc.date.available | 2021-09-08T06:30:31Z | - |
dc.date.created | 2021-09-08 | - |
dc.date.created | 2021-09-08 | - |
dc.date.created | 2021-09-08 | - |
dc.date.created | 2021-09-08 | - |
dc.date.issued | 2021-08 | - |
dc.identifier.citation | SCIENTIFIC REPORTS, v.11, no.1 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | http://hdl.handle.net/10203/287657 | - |
dc.description.abstract | The hygroscopic property of particulate matter (PM) influencing light scattering and absorption is vital for determining visibility and accurate sensing of PM using a low-cost sensor. In this study, we examined the hygroscopic properties of coarse PM (CPM) and fine PM (FPM; -PM2.5) and the effects of their interactions with weather factors on visibility. A censored regression model was built to investigate the relationships between CPM and -PM2.5 concentrations and weather observations. Based on the observed and modeled visibility, we computed the optical hygroscopic growth factor, f (RH), and the hygroscopic mass growth, GM(VIS), which were applied to -PM2.5 field measurement using a low-cost PM sensor in two different regions. The results revealed that the CPM and -PM2.5 concentrations negatively affect visibility according to the weather type, with substantial modulation of the interaction between the relative humidity (RH) and -PM2.5. The modeled f (RH) agreed well with the observed f (RH) in the RH range of the haze and mist. Finally, the RH-adjusted -PM2.5 concentrations based on the visibility-derived hygroscopic mass growth showed the accuracy of the low-cost PM sensor improved. These findings demonstrate that in addition to visibility prediction, relationships between PMs and meteorological variables influence light scattering PM sensing. | - |
dc.language | English | - |
dc.publisher | NATURE PORTFOLIO | - |
dc.title | Hygroscopic properties of particulate matter and effects of their interactions with weather on visibility | - |
dc.type | Article | - |
dc.identifier.wosid | 000686909600001 | - |
dc.identifier.scopusid | 2-s2.0-85112722798 | - |
dc.type.rims | ART | - |
dc.citation.volume | 11 | - |
dc.citation.issue | 1 | - |
dc.citation.publicationname | SCIENTIFIC REPORTS | - |
dc.identifier.doi | 10.1038/s41598-021-95834-6 | - |
dc.contributor.localauthor | Yoon, Yong-Jin | - |
dc.contributor.nonIdAuthor | Won, Wan-Sik | - |
dc.contributor.nonIdAuthor | Lee, Woojoo | - |
dc.contributor.nonIdAuthor | Ku, Sungkwan | - |
dc.contributor.nonIdAuthor | Su, Pei-Chen | - |
dc.description.isOpenAccess | Y | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | YANGTZE-RIVER DELTA | - |
dc.subject.keywordPlus | HAZE-FOG EPISODE | - |
dc.subject.keywordPlus | SOURCE APPORTIONMENT | - |
dc.subject.keywordPlus | AIR-POLLUTION | - |
dc.subject.keywordPlus | ATMOSPHERIC VISIBILITY | - |
dc.subject.keywordPlus | LABORATORY EVALUATION | - |
dc.subject.keywordPlus | RELATIVE-HUMIDITY | - |
dc.subject.keywordPlus | LIGHT-SCATTERING | - |
dc.subject.keywordPlus | REFRACTIVE-INDEX | - |
dc.subject.keywordPlus | URBAN AREA | - |
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