DOE/ORO/2327 Oak Ridge Reservation Annual Site Environmental ...

Annual Site Environmental Report
Fig. 3.11. Arsenic monitoring results: 5-year history through 2009.
Fig. 3.12. Beryllium monitoring results: 5-year history through 2009.
Total uranium metal was measured as a quarterly composite of continuous weekly samples from
stations K2, K6, K9 and K11. The total uranium mass for each sample was determined by ICP-MS.
Figure 3.16 illustrates the air concentrations of uranium metal for the past 5 years based on quarterly
composites of weekly continuous samples. The uranium averages and maximum individual concentration
measurements for all sites are presented in Table 3.4. The averaged results ranged from a minimum of
approximately 0.000024, up to 0.000122 μg/m3. The highest 12-month average result (0.000122 µg/m3)
was measured at Station K2. The annual average value for all stations due to uranium was
0.000074 μg/m3.
East Tennessee Technology Park 3-23