Representative Results from "Determining Significant Endpoints for Ecological Risk Analysis"

Typical bullfrog tadpole mouth structure	Deformed bullfrog tadpole mouth from D-area ash basin

Oral deformities are found in more than 90 percent of ash basin tadpoles. Tadpoles have: 1) elevated levels of As and Se; 2) increased metabolic rates.

Bullfrog Juveniles:
As: 15.6 +/- 4.4 ppm
Se: 26.9 +/- 0.3 ppm

Bullfrog Tadpoles:
As: 48.9 +/- 2.6 ppm
Se:25.7 +/- 3.6 ppm