Application of Positive Matrix Factorization in the Identification of the Sources of PM<sub>2.5</sub> in Taipei City.

Int J Environ Res Public Health · 2018 · PMC6068607 · PMID 29933645

Europe PMC DOI

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a significant trendno p-value reported

Figure 4 b shows the ratio of the PM 2.5 (fine) concentration to the PM 10 (coarse) concentration, and the daily hourly changes did not reveal a significant trend.

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