Chemical engineers have assembled a hefty reference with data on 750 hazardous air pollutants, priority water pollutants, and chemicals listed by the US Occupational Safety and Health Administration, the three main classes of hazardous materials. An appendix listing chemicals by Chemical Abstracts Service registry number refers to entries in the primary alphabetical section. Among the information provided is chemical formula; identification numbers; synonyms; physical, chemical, and biological properties; bioaccumulation; origin, industry, sources, and uses; toxicity; exposure routes; regulatory status; probable fate; treatability and removability; and key references.