Heavy metal distribution and ecological risk in surface sediments of the Bohai Sea.

PLoS One · 2025 · PMC12204586 · PMID 40577387

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a decreasing trendno p-value reported

In 2013,the average single factor pollution coefficients exhibited a decreasing trend in the following order: Pb, Cu, Cd, Zn, As and Hg, all of which were less than 1, indicating low pollution level.

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