Potentially Toxic Elements and Health Risk Assessment in Farmland Systems around High-Concentrated Arsenic Coal Mining in Xingren, China

Table 3

Pearson’s correlation of PTEs contents in human nail, hair, and blood samples.

	1	2	3	4	5	6	7	8	9	10	11	12
	Nail As	Nail Pb	Nail Cu	Nail Cr	Hair As	Hair Pb	Hair Cu	Hair Cr	Blood As	Blood Pb	Blood Cu	Blood Cr
1	1	0.834	0.627	0.759	0.067	0.23	-0.074	0.015	-0.09	-0.187	-0.016	-0.196
2		1	0.722	0.942	−0.034	0.239	−0.027	−0.036	0.029	−0.177	0.071	−0.091
3			1	0.783	0.030	0.196	−0.062	−0.055	−0.100	−0.201	0.124	−0.041
4				1	0.042	0.230	−0.005	0.056	0.086	−0.231	0.059	−0.145
5					1	0.644	−0.010	0.567	0.115	−0.181	−0.038	−0.145
6						1	−0.006	0.401	−0.049	0.147	0.107	0.016
7							1	0.104	0.021	−0.219	−0.057	−0.073
8								1	0.092	−0.011	0.058	0.012
9									1	−0.159	0.191	0.149
10										1	0.319	0.363
11											1	0.793
12												1

Correlation is significant at the 0.01 level (2 tailed); correlation is significant at the 0.05 level (2 tailed).