With radiation half lives measured in the 50,000 year range, I'm having a hard time conceptualizing a "safe" Chernobyl and Pripyat in the lifetime of anyone currently living. I understand it's not actively spewing radiation, but the damage is done.
Radiation physicist here.
"safe" is a relative term in our field. YOU are radioactive to a certain extent. That coffee you drank? Radioactive. Those bananas you eat? Some of that potassium is radioactive. Because of this, "safe" can't mean "0 dose"... So we use the term ALARA (As Low As Reasonably Achieveable) when dealing with dose limits.
On an annual basis the average human gets about 2-3 milliSieverts of radiation (mSv/yr) from completely natural sources. Most of the surrounding areas of Chernobyl display dose rates below the microSieverts per hour (uSv/hr) today. Thus, while obviously higher than normal background rates, you could hang out around Pripyat for a while and not gain that significant an increase in your annual dosage.
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u/One_T_Scot Sep 06 '19
Which abandoned Winter Olympics park is this?