Instruments for environmental monitoring

Government regulations require industry to monitor air and water for various gaseous pollutants, particulates, lead, and ''''priority pollutants.'' Instrumentation currently used for monitoring air and water pollution is described. Quality assurance considerations and research in air quality monitoring are also discussed. Techniques for monitoring atmospheric pollutants are more firmly established and more automated than techniques for monitoring water pollutants are. (4 diagrams, 4 photos, 15 references, 7 tables)