Here is the quote from your reference:

"It tends to loosen the binding of the mercury and other heavy metals the chlorella is holding!"

There are no foot notes or citations. I'd like a lot more information before I place any real value on that statement.

I take both C and Chlorella together with very positive results. Vitamin C loosens the toxins from your organs and other storage points in the body. Based on the color of my output alone, i'd say that the Chlorella mops it up pretty well.