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Table 1 Activity of Po210 in seafood samples collected during three sampling periods

From: Natural radionuclide of Po210 in the edible seafood affected by coal-fired power plant industry in Kapar coastal area of Malaysia

Species Size class Po210activity (Bqkg-1dry weight)
   27/8/2008 2/12/2008 25/2/2009
(Fish) Arius maculatus class 1 (10-15 cm) 5.6 ± 1.78 (n = 5) NA 3.5 ± 0.14 (n = 9)
  class 2 (16-20 cm) 5.9 ± 1.52 (n = 10) 4.5 ± 0.01 (n = 1) 4.5 ± 0.24 (n = 15)
  class 3 ( > 20 cm) 7.5 ± 1.64 (n = 15) 5.4 ± 0.27 (n = 29) 5.2 ± 0.24 (n = 6)
  Mean 6.4 ± 0.95 5.1 ± 0.13 4.4 ± 0.12
(Crustacean) Penaeus merguiensis class 1 (5-7 cm) 58.2 ± 2.80 (n = 10) 41.5 ± 1.73 (n = 3) 36.8 ± 0.78 (n = 5)
  class 2 (8-10 cm) 51.1 ± 2.00 (n = 6) 50.0 ± 3.72 (n = 23) 48.3 ± 1.65 (n = 7)
  class 3 (10 > cm) 53.9 ± 3.25 (n = 14) 64.5 ± 1.64 (n = 4) 52.1 ± 1.82 (n = 18)
  Mean 54.4 ± 1.58 51.6 ± 1.47 45.7 ± 0.86
(Mollusc) Anadara granosa class 1 (2-3 cm) 112.9 ± 7.24 (n = 3) 224.5 ± 15.0 (n = 16) 114.9 ± 7.29 (n = 15)
  class 2 (3.1-3.5 cm) 374.6 ± 13.56 (n = 6) 307.1 ± 20.21 (n = 11) 92.7 ± 2.83 (n = 4)
  class 3 (3.5 > cm) 393.9 ± 25.90 (n = 21) 203.0 ± 5.44 (n = 3) 105.2 ± 6.73 (n = 11)
  Mean 293.8 ± 10.04 244.9 ± 8.58 104.3 ± 3.44
  1. NA: Not available
  2. n: amount of sample