Heavy Metal Depuration Steps for <i>Gracilaria chilensis</i> in Outdoor Culture Systems.

In this case, and considering the DGR, a positive trend can be observed ( Figure 2 ).

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The Fe, Cr, V, Pb, and Se concentrations did not show any significant differences, but they showed a trend of reduced concentrations at 14 days of culture in relation to the naturally occurring G. chilensis biomass (except for Pb) ( Figure 1 ).

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The obtained values show a clear trend of depuration of the heavy metals in the culture after the first tap water submersion ( Table 1 ).

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