Values for the maximum permissible concentration (MPC) of certain radionuclides

▪ Table

Values for the maximum permissible concentration (MPC) of certain radionuclides

isotope chemical form critical organ mBq in body

tritium (hydrogen-3) water 7.4(10⁻³)

carbon-14 carbon dioxide 1.5(10⁻⁵)

strontium-90* water-soluble salt 1.5(10⁻⁶)

bone 1.5(10⁻⁷)

iodine-131 water-soluble salt 1.8(10⁻⁶)

thyroid 2.6(10⁻⁸)

cesium-137 water-soluble salt 1.1(10⁻⁶)

radon-222** gas

radium-226*** water-soluble salt 7.4(10⁻⁸)

bone 3.7(10⁻⁸)

uranium water-soluble salt 7.4(10⁻⁸)

kidney 1.8(10⁻¹⁰)

plutonium-239 water-soluble salt 1.5(10⁻⁸)

bone 1.5(10⁻⁹)

*MPC in drinking water: 3.7(10⁻⁹) micro Bq per litre.

**MPC in air: 3.7(10⁻¹¹) micro Bq per litre.

***MPC in drinking water: 3.7(10⁻¹⁰) micro Bq per litre.

See as table:

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