Table 3.

Summary of studies on contamination of Mongolian urban soils with metal(loid)s (average values in mg/kg).

City/Town	n	As	Cd	Cr	Cu	Hg	Ni	Pb	Zn	References
Baganuur	48		0.87		13.6			29.6	51.7	This study
Darkhan	25*			704**	50.8	0.06	32	29.2	63.6	Kosheleva et al.21
	21	3.33		31.9			19.5	20.9	67.3	Chonokhuu et al.37
	18*1	5.22	0.23	32.1	18.5		15.2	29.9	82.3	Timofeev et al.30
Erdenet	18*			113	450	0.10	35	24.7	62.2	Kosheleva et al.21
	30	12.8		65.7			29.3	18.1	155	Chonokhuu et al.37
Nalaikh	50		1.21		13.8			36.4	73.7	This study
Sharyn Gol	44		1.46		22.1			69.0	87.6	This study
Ulaanbaatar	22	14	0.8	20.3	35.9		18.7	63.9	159	Batjargal et al.17
	23*			72.6	56.5	0.19	30.6	59.4	105	Kosheleva et al.21
	90	10.8	0.25	32.7	22.4		17.0	45.9	120	Kasimov et al.47
	29					0.09				Chung and Chon19
	10							39.1		Tserenpil et al.48
	x***	10.3		685				33.0	113	Naidansuren et al.49
	27	28.0		16.6			21.3	43.1	106	Chonokhuu et al.37
	42	22.9	0.2	29.0	28.9			34.5	136	Battsengel et al.45
	22	9.41	0.25	30.0	20.8			45.1	116	Bilguun et al.20
	28	16.4		1987	53.5		13.6	33.2	111	Oyunbat et al.50
Mongolian standard		20	3	150	100	2	150	100	300	MNS 5850:201934
DSG target value		29	0.8	100	36	0.3	35	85	140	VROM33
DSG intervention value		55	12	380	190	10	210	530	720	VROM33

n number of samples, DSG Dutch Soil Guidelines; studies exceeding all the standards are bold.

*Data selected from the study's category with the most samples.

**Possible incorrect value inconsistent with the text of the article.

***XRF readings on 340 points.