Table 3. Analytical conditions of GC-NPD (unit, mg/kg)

Sample	N	HgMean ± S.D.(Min. – Max.)	MeHgMean ± S.D.(Min. – Max.)
Pollack	5	0.022 ± 0.009(0.011 – 0.035)	0.011 ± 0.005(0.006 – 0.019)
Pollack (D)	5	0.019 ± 0.014(0.012 – 0.044)	0.014 ± 0.007(0.009 – 0.026)
Shrimp	5	0.018 ± 0.004(0.003 – 0.030)	0.011 ± 0.009(0.002 – 0.021)
Shrimp (D)	5	0.013 ± 0.009(0.003 – 0.025)	0.007 ± 0.006(N.D. – 0.015)
Squid	5	0.029 ± 0.017(0.005 – 0.052)	0.023 ± 0.017(0.003 – 0.040)
Squid (D)	5	0.041 ± 0.017(0.016 – 0.056)	0.027 ± 0.013(0.008 – 0.039)
Mussel	4	0.007 ± 0.004(0.003 – 0.013)	0.001 ± 0.001(N.D. – 0.004)
Mussel (D)	5	0.003 ± 0.001(0.002 – 0.004)	0.000 ± 0.000(N.D. – 0.000)

N, number of sample; D, dried.