14.5 Conclusion
The content of Cs137 is between 0.5 and 10.5 Bq/kg, with average level 2,1þ/
À1,5 Bq/kg.
The content of K40 is between 55 and 494 Bq/kg sediment, with average level
249þ/À94 Bq/kg.
Everywhere in Mamaia sector, the two radionuclides, have good positive
correlation.
A negative good correlation of radioactive content is with mean diameter, the
fine grains of sediment having good capacity for fixing the radionuclides.
Water movements influence the transport and segregation of sediment (zonal
differences), and their quality (granulometry, content) affecting the fixation of
radionuclides.
The external radiological impact of the radioactive content in sand of the beach
is at low level.
References
Chiosila I, Toro L, Cuculeanu V (2012) Environmental radioactivity. Ministry of Environment and
Forests, The National Agency for Environmental Protection, Bucuresti, Romania. ISBN
978–973–0-14038-5, 75p
Diaconeasa ID (2017) The granulometry of sediments from Navodari-Mamaia beach area. In:
Finkl CW, Makowski C (eds) Diversity in coastal marine sciences. Historical perspectives and
contemporary research of geology, physics, chemistry, biology, and remote sensing. Springer,
Cham
Margineanu R, Simion C, Bercea S, Duliu OG, Gheorghiu D, Stochioiu A, Matei M (2008) The
Slanic-Prahova (ROMANIA) underground low-background radiation laboratory. Appl Radiat
Isot 66:1501–1506. doi:10.1016/j.apradiso.2008.04.002
Margineanu RM, Duliu OG, Blebea-Apostu AM, Gomoiu C, Bercea S (2013) Environmental dose
rate distribution along the Romanian Black Sea shore. J Radioanalytical Nucl Chem 298
(2):1191–1196
Nicolaev S, Zaharia T, Bisinice E, Alexandrov L, Boicenco L, Coatu V, Diaconeasa D,
Dumitrache C, Golumbeanu M, Marin O, Laza ˘r L, Malciu V, Mateescu R, Maximov V,
Micu D, Nit ¸a ˘ V, Oros V, Spı ˆnu V, Stoica E, Timofte F, T ¸ iga ˘nus ¸ D (2015) Report on the
state of marine and coastal environment, in 2014; Cercetari Marine/Recherches Marines,
nr. 45:4–149, ISSN:0250–3069
UNSCEAR (2000) Sources and effects of ionizing radiation, vol I, The UNSCEAR 2000 Report to
the General Assembly, United Nations Scientific Committee on the Effects of Atomic Radiation, Vienna, Austria
14 Gamma-Ray Radionuclides in Sediments from Mamaia Beach on the Romanian. . .
239
The content of Cs137 is between 0.5 and 10.5 Bq/kg, with average level 2,1þ/
À1,5 Bq/kg.
The content of K40 is between 55 and 494 Bq/kg sediment, with average level
249þ/À94 Bq/kg.
Everywhere in Mamaia sector, the two radionuclides, have good positive
correlation.
A negative good correlation of radioactive content is with mean diameter, the
fine grains of sediment having good capacity for fixing the radionuclides.
Water movements influence the transport and segregation of sediment (zonal
differences), and their quality (granulometry, content) affecting the fixation of
radionuclides.
The external radiological impact of the radioactive content in sand of the beach
is at low level.
References
Chiosila I, Toro L, Cuculeanu V (2012) Environmental radioactivity. Ministry of Environment and
Forests, The National Agency for Environmental Protection, Bucuresti, Romania. ISBN
978–973–0-14038-5, 75p
Diaconeasa ID (2017) The granulometry of sediments from Navodari-Mamaia beach area. In:
Finkl CW, Makowski C (eds) Diversity in coastal marine sciences. Historical perspectives and
contemporary research of geology, physics, chemistry, biology, and remote sensing. Springer,
Cham
Margineanu R, Simion C, Bercea S, Duliu OG, Gheorghiu D, Stochioiu A, Matei M (2008) The
Slanic-Prahova (ROMANIA) underground low-background radiation laboratory. Appl Radiat
Isot 66:1501–1506. doi:10.1016/j.apradiso.2008.04.002
Margineanu RM, Duliu OG, Blebea-Apostu AM, Gomoiu C, Bercea S (2013) Environmental dose
rate distribution along the Romanian Black Sea shore. J Radioanalytical Nucl Chem 298
(2):1191–1196
Nicolaev S, Zaharia T, Bisinice E, Alexandrov L, Boicenco L, Coatu V, Diaconeasa D,
Dumitrache C, Golumbeanu M, Marin O, Laza ˘r L, Malciu V, Mateescu R, Maximov V,
Micu D, Nit ¸a ˘ V, Oros V, Spı ˆnu V, Stoica E, Timofte F, T ¸ iga ˘nus ¸ D (2015) Report on the
state of marine and coastal environment, in 2014; Cercetari Marine/Recherches Marines,
nr. 45:4–149, ISSN:0250–3069
UNSCEAR (2000) Sources and effects of ionizing radiation, vol I, The UNSCEAR 2000 Report to
the General Assembly, United Nations Scientific Committee on the Effects of Atomic Radiation, Vienna, Austria
14 Gamma-Ray Radionuclides in Sediments from Mamaia Beach on the Romanian. . .
239