ABSTRACT
This chapter provides a screening process as well as several means whereby the environmental professional might expand one's technical tool box. It deals with some basic screening approaches which are becoming widely accepted practices in limited niches while slowly becoming recognized in environmental hazardous waste management. To address unknown hazardous wastes, the chapter also provides generalized background information with a discussion of a field test to characterize unknowns for initial management purposes. The listed wastes are divided into three main categories: hazardous wastes from nonspecific sources, hazardous wastes from specific sources, and commercial chemical product wastes — acutely hazardous. The complexities of air pollution are complicated by the multiple exhaust stack emissions, car emissions, nature's supermarket of airborne substances, and photochemical reactions. The Environmental Protection Agency requires routine stack sampling for known emissions, and contributions are locally controlled.
