Origin and Enrichment Mechanisms of Salinity and Fluoride in Sedimentary Aquifers of Datong Basin, Northern China.

Int J Environ Res Public Health · 2023 · PMC9914851 · PMID 36767199

Europe PMC DOI

hedged sentences

—

closest p

—

boldest claim

The sentences

an increasing trendno p-value reported

Fluoride and TDS concentrations have an increasing trend towards the central part of the basin. 32.8% of groundwater samples contained elevated TDS concentrations, which exceed the WHO drinking water guideline value of 1000 mg/L.

also in 63,971 other papers

a decreasing trendno p-value reported

TDS concentrations show a decreasing trend with the increase in pH ( Figure 8 c).

also in 47,180 other papers

an elevated trendno p-value reported

Therefore, both TDS and fluoride concentrations in groundwater showed an elevated trend towards the central part of the basin. 4.2.2.

also in 278 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.