The report summarizes the results of a U.S. Environmental Protection Agency (EPA)-sponsored study to compile and evaluate information on commercially-available real-time air monitoring equipment for use at Superfund sites. In the document, real-time (RT) and near real-time (NRT) monitors are broadly defined as those instruments or methods that provide information either instantaneously or within a relatively short time period (i.e., <30 minutes). The objectives of the study were to review the available literature on real-time (RT) air monitoring; compile a comprehensive list of real-time and near real-time (NRT) air sampling techniques, equipment, and vendors; contact vendors and users to collect information on the technical specifications of their applicable instruments; and prepare a guidance document that summarizes the results of the study. The available literature was reviewed to identify the most current methods for real-time or near real-time measurement of ambient air concentrations of toxic pollutants commonly found at Superfund sites.

"Office of Air Quality Planning and Standards"--Cover. "EPA/451-R-93-008." "Document prepared ... under EPA Contract No. 68-DO-0125, Work Assignment II-77"--Page vi. "The project was managed by Mr. Mark Hansen of EPA's Air Enforcement Branch in Dallas, Texas"--Page vi. "May 1993." Cover title: "Compilation of information on real-time air monitoring for use at Superfund sites." Includes bibliographical references.