Changes in source contributions to particle number concentrations after the COVID-19 outbreak: Insights from a dispersion normalized PMF

Factor analysis models use the covariance of measured variables to identify and apportion sources. These models, particularly positive matrix factorization (PMF), have been extensively used for analyzing particle number concentrations (PNCs) datasets. However, the variation of observed PNCs and part...

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Dettagli Bibliografici
Pubblicato in:Sci Total Environ
Autori principali: Dai, Qili, Ding, Jing, Song, Congbo, Liu, Baoshuang, Bi, Xiaohui, Wu, Jianhui, Zhang, Yufen, Feng, Yinchang, Hopke, Philip K.
Natura: Artigo
Lingua:Inglês
Pubblicazione: Elsevier B.V. 2021
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Article
Accesso online:https://ncbi.nlm.nih.gov/pmc/articles/PMC7647391/
https://ncbi.nlm.nih.gov/pubmed/33189385
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1016/j.scitotenv.2020.143548
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