Table 2.

Environmental and biological Mn exposure parameters grouped by study area (VC= Valcamonica; GL=GardaLake) (* Kruskal–Wallis test)

Variable	Area	n	Min	1st a.le	Mean	Median	3rd a.le	Max
Mn soil (ppm)	VC-Sellero	39	1313.8	1455.1	1472.1	1463.0	1497.5	1724.0
	VC-Breno	65	534.7	832.7	953.9	982.5	1150.9	1233.3
	VC-Darfo	49	472.8	774.5	766.6	807.7	834.6	1006.2
	VC	153	472.8	811.8	1026.0	922.9	1313.8	1724.0
	GL	102	313.3	389.1	421.0	410.0	447.1	548.9
P <0.0001 *	all	255	313.3	419.2	784.0	786.3	1008.1	1724.0
Mn air (ng/m3)	VC-Sellero	39	2.0	13.6	23.4	16.3	31.4	58.4
	VC-Breno	65	4.0	19.8	39.3	30.0	55.2	103.0
	VC-Darfo	49	4.1	10.0	21.1	18.0	27.6	68.5
	VC	153	2.0	13.9	29.4	22.2	37.6	103.0
	GL	101	2.4	15.6	21.2	20.5	26.1	68.1
p < 0.0001	all	254	2.0	14.8	26.1	21.2	30.1	103.0
Mn blood (µg/L)	VC-Sellero	34	4.3	7.7	9.1	9.1	10.3	15.6
	VC-Breno	64	4.3	6.4	8.0	7.5	9.8	19.5
	VC-Darfo	48	3.6	6.3	8.4	8.2	9.6	14.8
	VC	146	3.6	6.5	8.4	8.1	10.0	19.5
	GL	92	3.6	7.2	10.2	9.5	12.8	21.6
p = 0.0011	all	238	3.6	6.8	9.1	8.5	10.4	21.6
Mn urine (µg/L)	VC-Sellero	34	0.1	0.1	0.2	0.1	0.2	3.7
	VC-Breno	64	0.1	0.1	0.3	0.1	0.2	5.9
	VC-Darfo	48	0.1	0.1	0.4	0.1	0.3	2.9
	VC	146	0.1	0.1	0.3	0.1	0.2	6
	GL	93	0.1	0.1	0.4	0.1	0.3	9.4
p = 0.95	all	239	0.1	0.1	0.3	0.1	0.2	9.4
Pb Blood (µg/dL)	VC-Sellero	34	0.8	2.8	4.1	3.3	5.5	12.8
	VC-Breno	64	1.1	2.5	4.1	3.2	5.3	11.5
	VC-Darfo	48	0.5	2.4	4.7	4.5	6.2	17.3
	VC	146	0.5	2.5	4.3	3.6	5.7	17.3
	GL	92	0.5	2.1	4.0	3.5	5.1	15.3
p = 0.48	all	238	0.5	2.3	4.2	3.5	5.5	17.3