Bacterial Heavy-Metal and Antibiotic Resistance Genes in a Copper Tailing Dam Area in Northern China.

In accordance with the sampling along the seeping stream, an increasing trend of all the copper resistance genes ( pco A, cop A, and cop B) is observed, while all the other resistance genes is found at the highest abundance at the TD1 site and there are significant differences in these genes among all the sampling sites ( P < 0.01) ( Figure 3B and Supplementary Table S2 ).

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