Before revision: The health and safety of workers monitoring the structure is also a concern; for reference Chernobyl Entombment works receive about 9.2 mSv per month, compared to the average US resident receiving 3.1 mSv per year.
After revision: The health and safety of workers monitoring the structure is also a concern; for reference Chernobyl Entombment workers receive about 9.2 mSv per month, compared to the average US resident receiving 3.1 mSv per year.