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. 2023 Sep 26;11(10):814. doi: 10.3390/toxics11100814

Figure 7.

Figure 7

Public exposure limits. (A) Mean dose rate at distances of 30, 60, 100, and 200 cm from patient after 3 h on completion of the bone scintigraphy. (B) Public exposure limit heat map showing the comparison between mean dose rates at distances of 30, 60, 100, and 200 cm after 3 h on completion of the bone scintigraphy. In an unrestricted area, the United States Nuclear Regulatory Commission (NRC) specifies in Title 10 of the Code of Federal Regulations (CFR) Section 20 that the dose from external sources cannot exceed the reference level of 0.002 rem (0.02 mSv) per hour (20 μSv/h). Data are given as mean ± standard deviation (n = 100).