by guru » Fri Feb 13, 2009 2:58 pm
Yes, There are several reported heavy metal contamination in human as well as animal foods made from algae cultivated in industrial effluents....A study on "Heavy metal, total arsenic, and inorganic arsenic contents of algae food products" analyzed arsenic, inorganic arsenic, lead, cadmium, and mercury contents of 18 algae food products sold in Spain.
See:http://www.ncbi.nlm.nih.gov/pubmed/11829668