[en] This report documents EPA's monitoring activities for CY 1992, the last year of nuclear testing prior to the moratorium. Monitoring data are included so that one may evaluate the contribution, if any, of nuclear testing to man's radiation exposure. (Total radiation exposure man received includes external exposure from naturally occurring, manmade materials in the environment, and internal exposure from natural and manmade radioactive materials in the air we breathe, the water we drink, and the food we eat.) In 1992, there was no radioactivity detected offsite by the various EPA monitoring networks and no exposure above natural background to the population living in the vicinity of the Nevada Test Site that could be attributed to current site activities. In 1992, there were 6 events. Offsite levels were assessed by sampling milk, water, and air; by deploying TL dosimeters and pressurized ion chambers; and by biological monitoring of animals, food crops, and humans. Monitoring personnel were placed in areas downwind from the test site prior to each nuclear weapons test