Changes in radiocesium concentration in a blueberry (Vaccinium virgatum Aiton) orchard resulting from radioactive fallout

Figures & data

Table 1 Radiocesium concentrations (¹³⁴Cs + ¹³⁷Cs Bq kg FW⁻¹) in each organ of blueberries (Vaccinium virgatum Aiton)

Organ/year	2011	2012	2012/2011
Fruits	290^† ± 61	28 ± 4.9	0.097
Leaves	410 ± 85	73 ± 8.4	0.18
Current shoots	380 ± 16	88 ± 13	0.23
2-year-old branches	3700 ± 410	410 ± 180	0.11
3-year-old branches	NS	1700 ± 330

^†Values are means of three bushes with standard error of the mean. FW: fresh weight; NS: not sampled.

Figure 1 Changes in radiocesium concentrations (¹³⁴Cs + ¹³⁷Cs) in fruits and leaves of blueberries (Vaccinium virgatum Aiton). Values are means of samples collected from three bushes in 2011 and 2012. Values in 2013 were obtained from one fruit sample and two leaf samples from three bushes, respectively. Bars indicate standard error of the mean.

Figure 2 Changes in the radiocesium concentration (¹³⁴Cs + ¹³⁷Cs) of the soil. Values are means of samples collected from sites under the canopy of three bushes. Bars indicate standard error of the mean.

Figure 3 Changes in the radiocesium amount (¹³⁴Cs + ¹³⁷Cs) in the soil and organic matter on the soil surface under the canopy. Values are means of samples collected from sites under the canopy of three bushes. Bars indicate standard error of the mean.