Eight metal(loid) concentrations (mg kg⁻¹ wet weight) in fish in other regions of China and other countries.

Location	Number of fish species	Cr	Ni	Cu	Zn	As	Cd	Pb	Hg	References
Northeast of Chinaa	16	NDc–0.49	ND–0.78	0.067–0.97	2.49–51.38	ND–0.39	ND–0.009	ND–0.70	ND–0.82	Present study
Bangshi River (Bangladesh)b		0.47–2.07		8.33–43.18	42.83–418	1.97–6.24	0.09–0.87	1.76–10.27		39
Yangtze River (China)a		0.10–0.24		0.77–1.22	2.8–7.55	NA	0.046–0.12	0.21–0.81		18
Pearl River (China)a	13	0.11–4.27		0.15–7.55	8.78–30.3	NA	0.01–0.13	0.09–30.70		40
Nam Co Lake, Yamdro Lake and Lhasa River (China)a	7		0.094–0.22	0.33–2.0	2.5–6.9	0.067–0.27	0.013–0.029	0.024–0.079		41
Taihu Lake (China)a	1	0.12–0.50		0.39–1.47			0.02–0.11	0.35–1.20		17
Yellow River Estuary (China)a	11					0.01–0.87			0.01–0.22	10
Pearl River Delta (China/Hong Kong)a	11	0.20–0.65		0.79–2.26	15.20–29.50	0.03–1.53	0.02–0.06	0.03–8.62		22
Hainan coastal area, South China sea (China)a		1.38–4.36		0.07–0.94	1.45–8.07	0.48–6.99	ND–0.012	0.02–0.05		12
Western continental shelf of South China Sea	4	0.86–2.89	0.48–0.78	0.39–2.65	11.75–15.59		0.027–0.15	0.54–2.17		11
Northeast Mediterranean Sea (Europe)b	6	1.24–2.42		2.34–4.41	16.5–37.4		0.37–0.79	2.98–6.12		42

^aWet weight.

^bDry weight.

^cND means not detected.