Becquerels per cubic metre Bq/m^3 One radioactive disintegration per second from an SI standard unit of volume. Equivalent to millibecquerels per litre. 2018-02-02 16:35:30.0 SDN:P06::BQM3 SDN:P06::BQM3 SDN:P06::BQM3 1 1 2018-02-02 16:35:30.0 accepted false