Estimation of the time component in the movement of chemicals in contaminated groundwater.

Environ Health Perspect · 1987 · PMC1474509 · PMID 3691428

Europe PMC DOI

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an increasing trendno p-value reported

Of the remaining 19 wells, 8 showed low VOC levels with single sample peaks, or the concentrati9n versus time curve (CT curve) did not show an increasing trend.

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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.