Study of the Characteristics and Comprehensive Fuzzy Assessment of Indoor Air Chemical Contamination in Public Buildings.

Front Public Health · 2021 · PMC8138320 · PMID 34026697

Europe PMC DOI

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closest p

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showed a trendno p-value reported

PM 2.5 and PM 10 both showed a trend of first decreasing, then increasing and finally decreasing during the test.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.