Toxicology: What Chemists Don't Know Might Hurt Youbr Commonwealth Club - The Commonwealth Club of Californiabr There is substantial evidence that environmental conditions and environmental pollutants -- among them synthetic chemicals in consumer products -- have a profound effect on human health.Elizabeth Grossman, author of Chasing Molecules: Poisonous Products, Human Health, and the Promise of Green Chemistry, illustrates the potential for green chemistry to revolutionize the materials we make, how they're used, and the possible benefits to our health and environment.