Výsledky vyhledávání - "Yuk Ying Cheng"

Akademický článek

Minimizing Contamination from Plastic Labware in the Quantification of C16 and C18 Fatty Acids in Filter Samples of Atmospheric Particulate Matter and Their Utility in Apportioning Cooking Source Contribution to Urban PM2.5

Autor: Yuk Ying Cheng, Jian Zhen Yu

Publikováno v: Atmosphere, Vol 11, Iss 10, p 1120 (2020)

Palmitic acid (C16:0) and stearic acid (C18:0) are among the most abundant products in cooking emission, and thus could serve as potential molecular tracers in estimating the contributions of cooking emission to particulate matter (PM2.5) pollution i

Externí odkaz: https://doaj.org/article/12e290d22b5c4c67894f07cf70de4e0b

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Chemical evolution of secondary organic aerosol tracers during high-PM2.5 episodes at a suburban site in Hong Kong over 4 months of continuous measurement

Autor: Qiongqiong Wang, Shan Wang, Yuk Ying Cheng, Hanzhe Chen, Zijing Zhang, Jinjian Li, Dasa Gu, Zhe Wang, Jian Zhen Yu

Publikováno v: Atmospheric Chemistry and Physics. 22:11239-11253

Secondary organic aerosol (SOA) makes a sizable contribution to fine-particulate-matter (PM2.5) pollution, especially during high-PM episodes. Past studies of SOA evolution at the episode scale mainly rely on measurements of bulk SOA mass, with few s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00fe0bd453e191aafb72c601bf893885
https://doi.org/10.5194/acp-22-11239-2022

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Estimating contributions of vehicular emissions to PM2.5 in a roadside environment: A multiple approach study

Autor: Peter K.K. Louie, Alfred L.C. Yu, Yee Ka Wong, Alice W.Y. Tang, X. H. Hilda Huang, Jian Zhen Yu, Yuk Ying Cheng, Damgy H. L. Chan

Publikováno v: Science of The Total Environment. 672:776-788

Vehicular emissions (VE) are among the major sources of airborne fine particulate matter (PM2.5) in urban atmospheres, which adversely impact the environment and public health. Receptor models are widely used for estimating PM2.5 source contributions

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eca334840a49e45f159ed924eb1bab9f
https://doi.org/10.1016/j.scitotenv.2019.03.463

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Source apportionment of fine particulate matter in Macao, China with and without organic tracers: A comparative study using positive matrix factorization

Autor: Yongming Feng, Jian Zhen Yu, Cheng Wu, Yee Ka Wong, Xiaxia Zhang, Alexis K.H. Lau, X. H. Hilda Huang, Frankie C.V. Tam, Ngai Ting Lau, Kin Man Liu, Wai Man Ng, Ting Zhang, Zibing Yuan, Qiongqiong Wang, Qingyan Zhang, Yuk Ying Cheng, Claisen Yeung

Publikováno v: Atmospheric Environment. 198:183-193

Source apportionment of PM2.5 was performed using positive matrix factorization (PMF) based on chemical composition data from 24-h filters collected throughout the year of 2015 at two sites in Macao (TG and PE), where TG is a general station and PE i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::627c566f977d0804e68a10f6560bbd34
https://doi.org/10.1016/j.atmosenv.2018.10.057

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Field observation of hydroxy diacids in PM2.5 and insights into their formation from aliphatic diacids through heterogeneous oxidation

Autor: Jian Zhen Yu, Yuk Ying Cheng

Aliphatic dicarboxylic acids (DCA) are significant constituents of oxygenated organic aerosol. Laboratory studies indicated that the major heterogeneous oxidation product of aerosol-phase aliphatic DCAs was the corresponding hydroxy DCAs (hDCAs). In

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::32792e859b6afe25d1c172681e8bca1a
https://doi.org/10.5194/egusphere-egu2020-18131

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