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What is the normal level of radon in human blood?

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The concentration of radon in blood samples varies from 417 to 714 Bq m−3 with an average of 570.25 Bq m−3 before irradiation and varies from 463 to 881 Bq m−3 with an ... The isotope Rn-222, produced from the decay of U-238, is the main source (approximately 55%) of internal radiation exposure to human life. read more

There’s one study done after bading in bath-water containing 5,800 pCi (215 Bq)/kg, showing that the radon concentrations in blood reached 0.85 - 1% of the radon level in the water (Pohl 1965). Another study has showed that the air partition coefficient for radon gas has been estimated to be 0.4. read more

The normal range of carbon dioxide levels in the blood is 23 to 29 milliequivalents per liter, according to MedlinePlus. Sometimes other units might be used, in which case the normal range is 23 to 30 millimoles per liter, reports WebMD. read more

The average (mean) radon level in US homes is 1.25 pCi/L, or three times higher than the average level outdoors. How radon sneaks into homes. Nearly 8 million US homes, or 1 out of every 15, have radon levels above the EPA's 4 pCi/L"action" limit and nearly 1 out of 6 exceed the EPA's 2 pCi/L"consider action" limit. read more

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