External and internal irradiation of a Rural Bryansk (Russia) population from 1990 to 2000, following high deposition of radioactive caesium from the chernobyl accident

External Cesium-137 doses to humans from soil influenced by the Fukushima and Chernobyl nuclear power plants accidents: a comparative study

“…Recent studies related to the FNPP accident for areas within the Fukushima prefecture, Japan have been undertaken 25,26 . Similar investigations at Bryansk, the most impacted areas by the CNPP accident in Russia, have been reported [27][28][29] . A study was carried out which focused on recent external doses in Minsk and Gomel, Belarus and Chernobyl, Ukraine in 2012 30 .…”

“…There were large variations in the estimated external effective doses reported in the literature in western Bryansk, Russia -an area with the most significant soil contamination in Russia. For instance, Ramzaev et al 28 reported effective doses from 0.6 to 1.9 mSv yr −1 but Thornberg et al 27 reported values up to 2.8 mSv yr −1 . The large variations in the effective doses were reflected by the corresponding heterogeneity in soil activity concentrations from <45 kBq m −2 to >1806 kBq m −2 16 .…”

An assessment of cumulative external doses from Chernobyl fallout for a forested area in Russia using the optically stimulated luminescence from quartz inclusions in bricks

“…The fraction of the total cumulative external dose attributable to the exposure in the forest, and therefore the significance of the forest pathway for the total Chernobyl-related exposure, may depend not only on the time, which an individual spends in the forested areas, but on the situation in a whole settlement, or even on the local environmental conditions inside the settlement. For the western districts of the Bryansk Region, the normalized (per unit of 137 Cs deposition) external personal doses in a fully decontaminated village were reported to be significantly lower than those in the slightly decontaminated villages (Thornberg et al, 2001(Thornberg et al, , 2005. The normalized Chernobyl-related doses to the residents of wooden houses were 1.2e1.5 times higher than for people living in brick houses in the area (Ramzaev et al, 2006b).…”

“…112 mGy over the same period, 2005e2056. Our average figure of about 4% reduction rate of the external g-ray dose in the contaminated forest in the new millennium is two times lower than the expected value of 8%, which is considered to be a more likely external dose rate reduction after 2000 for the population living in heavily contaminated settlements from the same area in the Bryansk Region (Thornberg et al, 2005), although the latter investigators consider also much wider possible margins e from 2 to 16% reduction rate annually.…”

Effects of radioactive caesium on bull testes after the Fukushima nuclear plant accident

“…The internal dose varies in a more complex manner than the external dose depending on a number of factors such as soil-to-plant ratio, the distance to the nearest forest, dietary habits, water, air, and body burden17. These factors make it difficult to estimate chronic irradiation of wildlife under natural conditions18.…”