Howard J. Beim is Professor of Chemistry at the U.S. Merchant Marine Academy, Kings Point, New York. He has lectured and served as a contributing author on several books addressing chemistry of hazardous materials, hazardous material transportation regulations, remediation, and legal aspects of worker's right-to-know regulations. Jennifer Spero is an engineer at Malcolm Pirnie, Inc. in the air/environmental group involved in investigating, controlling, and reducing odor and hazardous air pollutant emissions. She is also a recent contributor to the Van Nostrand Reinhold text Engineering and Env...