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Table 1 Heavy metals background contents (Bn) of sediment in the Yangtze River of the Three Gorges Reservoir reaches

From: Ecological risk assessment and source tracing of heavy metals in surface sediments of a hilly riverine reservoir in Chongqing, China

Heavy metals

Cr

Cd

Pb

Cu

Zn

Hg

As

Co

Ni

Bn(mg.kg−1)

78.03

0.13

23.88

25

69.88

0.036

5.84

5.58

29.47