St. Louis Airport Site, St. Louis, Missouri: Annual Site Environmental Report, Calendar Year 1987: Formerly Utilized Sites Remedial Action Program (FUSRAP)

摘要

The monitoring program at the SLAPS measures radon gas concentrations in air; external gamma dose rates; and uranium, thorium, and radium concentrations in surface water, groundwater, and sediment. To assess the potential effect of the SLAPS on the public health, the radiation dose was calculated for the maximally exposed individual. Based on the scenario described in this report, the maximally exposed individual would receive an external exposure approximately equivalent to 5.5 percent of the DOE radiation protection standard of 100 mrem/yr. This exposure is approximately the same as a person would receive from increased cosmic radiation during six round-trip flights from New York to Los Angeles (due to greater amounts of cosmic radiation at higher altitudes). The dose to the population within an 80-km (50-mi) radius of the SLAPS that would result from radioactive materials present at the site would be indistinguishable from the dose the population would receive from naturally occurring radioactive sources. Results of 1987 monitoring show that the SLAPS is in compliance with the DOE radiation protection standard. 13 refs., 5 figs., 11 tabs. (ERA citation 13:034856)