Spatial and temporal changes analysis of air quality before and after the COVID-19 in Shandong Province, China.

Earth Sci Inform · 2022 · PMC8793823 · PMID 35106098

Europe PMC DOI

hedged sentences

—

closest p

—

boldest claim

The sentences

an increasing trendno p-value reported

AOD showed an increasing trend during January 2020, which was associated with urban heating and decreases in pollutants such as NO x .

also in 63,971 other papers

a decreasing trendno p-value reported

The results show that: (1) Compared with the same period, CO and NO 2 showed a decreasing trend from December 2019 to March 2020, with an average total change of 4082.36 mol/m 2 and 167.25 mol/m 2 , and an average total change rate of 4.80% and 38.11%, respectively.

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.