Occurrence, Distribution and Risk Assessment of Mercury in Multimedia of Soil-Dust-Plants in Shanghai, China.

Int J Environ Res Public Health · 2019 · PMC6747141 · PMID 31438583

Europe PMC DOI

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a decreasing trendno p-value reported

Since road dust was comprised of particles from both the local area and nearby areas, mercury concentrations in road dust showed a decreasing trend from the two industrial zones to the surrounding areas.

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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.