Evaluation of the Pollution by Toxic Elements around the Small-Scale Mining Area, Boroo, Mongolia

Table 3

Enrichment factor of the determined toxic elements in the areas of grassland, village, and gold washing.

Element	Enrichment factor
	Grassland	Village	Gold washing
Cu	1.29	1.56	4
Zn	1.21	1.14	1.79
As	3.26	3.34	30.52
Sr	0.39	0.28	0.51
Pb	3.49	4.08	4.37