Table 1.

Indoor and outdoor household dust metal concentrations (µg/g) in communities with active (Bagnolo Mella, BM), historic (Valcamonica, VC) and no history (Garda Lake, GL) of ferromanganese alloy plant activity in the Provence of Brescia, Italy.

Site			Mean	Median	Geo Mean	Std Dev	Min	Max	N
Mn	BM	Out	11700A	4620	5040	24300	487	183000	142
		In	1240a	599	756	1940	129	18500	147
	VC	Out	1350B	876	1050	1410	407	8240	81
		In	405b	308	324	338	59.7	2110	85
	GL	Out	580C	407	459	870	258	7240	68
		In	255c	185	193	266	20.8	2000	67
Al	BM	Out	9210A	9020	8750	3220	2340	30600	142
		In	4750a	4260	4190	2510	588	16400	147
	VC	Out	10300B	10200	10000	2510	5120	19400	81
		In	4610ab	4400	4100	2220	680	13900	85
	GL	Out	6550C	6720	6210	2110	2320	14000	68
		In	4030b	3510	3420	2330	447	11000	67
Cd	BM	Out	3.90A	2.35	2.71	5.98	0.09	49.2	142
		In	2.00a	1.47	1.20	5.02	0.09	60.8	147
	VC	Out	2.28B	1.81	1.81	2.30	0.09	16.2	81
		In	2.47a	1.49	1.44	5.01	0.09	39.5	85
	GL	Out	2.61B	1.79	2.10	2.42	0.847	16.9	68
		In	2.32a	1.69	1.70	2.27	0.09	13.1	67
Cr	BM	Out	81.7A	64.3	68.1	70.7	14.6	676	142
		In	47.9a	43.1	43.4	27.8	12.1	273	147
	VC	Out	70.8A	54.2	59.6	57.6	24.8	411	81
		In	47.6a	42.1	43.1	29.5	19.2	264	85
	GL	Out	143B	39.6	47.3	632	10.6	5170	68
		In	49.0a	43.6	43.8	32.6	19.0	223	67
Cu	BM	Out	501AB	294	304	1320	68.9	12200	142
		In	359a	199	222	747	18.9	6590	147
	VC	Out	501B	197	237	1480	53.2	12100	81
		In	327a	187	208	577	38.3	3900	85
	GL	Out	480A	332	340	520	58.8	3040	68
		In	256a	200	215	215	43.9	1590	67
Fe	BM	Out	20300A	15400	17000	18700	4550	162000	142
		In	6070a	4920	4980	5860	1270	57800	147
	VC	Out	21300A	18600	19100	15000	6870	138000	81
		In	5920ab	5620	5020	3270	728	18600	85
	GL	Out	18300B	12700	14400	18700	5200	139000	68
		In	7750b	3600	3930	24400	532	199000	67
Pb	BM	Out	221A	174	184	167	30.9	1380	142
		In	113a	82.3	82.1	127	1.85	1110	147
	VC	Out	195B	104	119	400	31.6	3160	81
		In	101a	56.9	61.7	152	1.85	1030	85
	GL	Out	342A	127	177	650	46.5	4420	68
		In	101a	64.6	65.4	131	1.85	794	67
Zn	BM	Out	1910A	862	991	5700	116	54600	142
		In	694a	524	574	616	66.1	5460	147
	VC	Out	1560B	583	698	6020	202	53900	81
		In	649a	505	516	795	126	7160	85
	GL	Out	1170B	684	743	2260	275	17800	68
		In	560a	489	487	362	119	2650	67

^A/B/C or ^a/b/c Capital letter superscripts reflect statistical comparison of outdoor dust samples across sites within each metal; groups with different letters are statistically different from one another based on ANOVA of log₁₀ transformed data. Similarly, lower case letter superscripts reflect statistical comparison of indoor dust samples across sites within each metal; groups with different letters are statistically different from one another.