This report contains the proceedings of the first of two hearings that explored the risks of environmental toxins to children. Testimony concerned the special vulnerability of children to toxins; the dangers of lead poisoning; instances of childhood cancer, birth defects, and developmental problems; passive smoking; child health in the California farm workers' communities; and the relationship between environmental toxins and child health as discussed by physicians participating in a Kids and the Environment seminar. A fact sheet describes child vulnerability to environmental toxins; lead poisoning; passive smoking; cancer risk; home pesticide use; and child cancer clusters in California. A copy of "What's Gotten into Our Children," a report prepared by Children NOW, is included. The report describes children and the environment and reviews the dangers of toxins to children, depending on what they eat and where they live, learn, and play. Twelve statements were delivered in person and sixteen prepared statements or materials that supplement verbal testimony were collected. (BC)