 Duckweed is a tiny aquatic plant. It grows easily and abundantly on the surface of New England's lakes and ponds. But what if humble duckweed could offer big water quality benefits? Anna O'Brien at the University of New Hampshire is trying to figure out if the plant can suck harmful contaminants out of local waterways. We're checking to look at the movement of cyanobacterial toxins and also to see if some of our naturally occurring types of duckweeds