Ambient air pollution associated with lower academic achievement among US children: A nationwide panel study of school districts.

Environ Epidemiol · 2021 · PMC8663889 · PMID 34909554

Europe PMC DOI

hedged sentence

—

closest p

—

boldest claim

The sentences

a decreasing trendno p-value reported

The average PM 2.5 concentrations had a decreasing trend.

also in 47,180 other papers

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.