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. 2017 Jan 26;12(1):e0171133. doi: 10.1371/journal.pone.0171133

Table 1. Details of study Site.

137Cs activity concentrations and counting errors in Litter Samples are shown for each study site.

Prefecture Study sites Location (latitude, longitude) Forest type Insect collection 137Cs in litter (Bq kg-1, dry) in year 2012 and 2013
Ibaraki A (36.2012, 140.1359)

  • Deciduous forest

  • Pitfall traps (21 June–25 July, 2012)

 736 ± 23 (2012)

  • Pitfall traps (16–19 July, 2013)

 248 ± 9 (2013)
B (36.1976, 140.1314)

  • Deciduous forest

  • Pitfall traps (21 June–25 July, 2012)

 987 ± 24 (2012)

  • Pitfall traps (16–19 July, 2013)

 778 ± 22 (2013)
C (36.1980, 140.1312)

  • Cedar forest

  • Pitfall traps (21 June–25 July, 2012)

 3435 ± 105 (2012)

  • Pitfall traps (16–19 July, 2013)

 1498 ± 39 (2013)
Fukushima D (37.8031, 140.7581)

  • Deciduous forest

  • Pitfall traps (8–19 Sep, 2012)

  • Pitfall traps (17–18 July/9–18 Sep, 2013)

 11354 ± 83 (2012)
4980 ± 150 (2013)
E (37.7892, 140.7642)

  • Cedar forest

  • Deciduous forest

  • Pitfall traps (8–19 Sep, 2012)

  • Light trap (8 Sep, 2012)

 34409 ± 158 (2012)

  • Pitfall traps (17–18 July and 9–10 Sep, 2013)

  • Light trap (9 Sep, 2013)

 17359 ± 94 (2013)
F (37.7933, 140.7651)

  • Deciduous forest

  • Pitfall traps (8–19 Sep, 2012)

 14145 ± 120 (2012)

  • Pitfall traps (17–18 July and 9–10 Sep, 2013)

 31099 ± 380 (2013)