Occurrence and health risks of heavy metals in crayfish (Procambarus clarkii) from Jiangsu province, China

Table 1 Concentrations of heavy metals in crayfish from CRCS and CICS in Jiangsu province, China (µg/kg, dry weight)^*

Source	As		Cd		Hg		Pb
Source	AM	WB	AM	WB	AM	WB	AM	WB
CRCS
Min	265.20	834.86	ND	44.21	60.43	17.71	ND	132.34
Max	1049.76	4379.81	25.49	233.52	293.00	91.68	224.54	949.78
Mean	563.85 a	1871.78 b	4.92 a	103.01 b	136.55 b	54.59 a	50.41 a	354.58 b
SD	231.93	866.67	8.35	50.91	61.72	23.83	46.26	192.31
DF	100	100	24	100	100	100	80	100
CICS
Min	415.10	717.98	ND	48.86	74.88	31.49	ND	121.97
Max	1085.33	2846.83	ND	740.30	167.38	98.88	58.66	584.88
Mean	634.59 a	1676.54 b	ND a	270.88 b	130.58 b	53.29 a	19.81 a	270.04 b
SD	226.86	669.61	/	229.43	34.11	24.45	21.12	153.46
DF	100	100	0	100	100	100	50	100

LOD of As, Cd, Hg and Pb were 0.4 µg/kg, 0.4 µg/kg, 0.4 µg/kg and 2 µg/kg; Different lower-case letters on columns for the same heavy metal are significantly different (p < 0.01)
^*AM Abdominal muscle, WB Whole body, ND Not detected, SD Standard deviation, DF, % Detection frequency

ISSN: 2661-8974