Vernal Pools -- 002

Vernal Pools -- 002

Mina in vernal pool

Lead researcher Odette Mina in one of the vernal pools. Conditions in the pools are very different from streams. They hold standing water with scant dissolved oxygen in which duckweed is growing, and the physical and chemical parameters affect the persistence, transformation and degradation of the estrogens.  

Image: Heather Gall Research Group / Penn State