The Air Quality Facility of the John A. Volpe National Transportation Systems Center is providing support to the Emissions Division of the Federal Aviation Administration's Office of Environment and Energy (AEE-300). As part of this support, the Air Quality Facility is conducting a comprehensive review of past research in the area of aviation- related particulate matter. The purpose of this literature review is to allow an informed decision to be made on a possible first-order approximation to predict the mass of particulate emissions from aircraft until such time that measured data are available for most aircraft. Available references included in this report were collected from public and private libraries, technical journals, project reports, electronic literature searches, interviews, and other key sources. It should be noted that the literature review is not all- inclusive and that emphasis was placed on information concerning measured mass data from aircraft. Following the literature findings, a first order approximation methodology is suggested to estimate the mass of particulate matter (PM) emitted from aircraft based on available data.