The report: (1) identifies and characterizes the numerous small, but objectionable, sources of gaseous pollutants; (2) ranks sources according to relative importance; (3) assesses the equipment and technology available for controlling these sources, in handbook form; (4) investigates the potential and need for development of technology and new sorbents; and (5) details research and development recommendations to improve existing devices or to develop new control methods. Emission sources amenable to control by package sorption devices contribute 15% of the total organic emissions from all sources and can be divided into two broad categories: (1) solvent-user industries that emit solvents essentially unchanged, and (2) process industries that generate pollutants by chemical, biological, or thermal reactions. It also briefly discusses monitoring and detection methods.