Barely Significant
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Trends and oscillation characteristics of hourly PM<sub>2.5</sub> levels in arid environment using wavelet coherence and lagged correlation.

Sci Rep · 2026 · PMC12916937 · PMID 41620514

Europe PMCDOI
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hedged sentence
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closest p
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boldest claim

The sentences

a decreasing trendno p-value reported
an increasing trendno p-value reported
A positive value of Q indicates an increasing trend, while a negative value signifies a decreasing trend in the time series.

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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.