Elemental compositions of lichens from Duolun County, Inner Mongolia, China: Origin, road effect and species difference.

Sci Rep · 2017 · PMC5514112 · PMID 28717240

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a decreasing trendno p-value reported

Nevertheless, a decreasing trend in concentration of most terrigenous metals with increasing distance from the road can be observed in the plots 5–200 m off the road.

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