Biomonitoring of Polycyclic Aromatic Hydrocarbon Deposition in Greenland Using Historical Moss Herbarium Specimens Shows a Decrease in Pollution During the 20<sup>th</sup> Century.

Front Plant Sci · 2020 · PMC7373755 · PMID 32760420

Europe PMC DOI

hedged sentence

0.0100

closest p · 0.2× alpha

0.0100

boldest claim

The sentences

a decreasing trendp<0.01actually significant

Between the 1920s and the 1970s, a decreasing trend was seen (p<0.01, Figure 4 ).

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