are similar to the results for Pb; the difference is one order of
magnitude.
The general seasonal variation of the concentration of Cu in
water did not vary significantly between the rainy and dry periods;
however, a substantial part of Guanabara Bay is affected by larger
concentrations of Cu during the rainy season.
Similar to Pb, the concentrations of Cu were lower than the concentrations
of Cu in sediments; therefore, the previous explanation
can also be applied to these situations.