Table 1.

Element concentrations (in µg/m³) in coarse, fine and UF particles emitted from booths #1 and #3. The fine fraction was calculated indirectly from the fine + UF and UF fractions. Aerosol concentration factor: 31.

Fraction	Coarse	Coarse	Fine + UF	Fine + UF	Fine	Fine	UF	UF
Booth	#1	#3	#1	#3	#1	#3	#1	#3
Feedstock	Al/Ti/Cr/Ni	Ni/Cr/Co/W	Al/Ti/Cr/Ni	Ni/Cr/Co/W	Al/Ti/Cr/Ni	Ni/Cr/Co/W	Al/Ti/Cr/Ni	Ni/Cr/Co/W
Al	139	252	379	133	232	93	147	40
Ca	260	113	45	52	24	36	22	16
Cr	27	50	93	4534	37	3825	56	709
Fe	93	226	39	141	27	102	13	39
Mg	34	14	9.1	7.0	5.5	4.7	3.7	2.3
Na	12	35	16	21	1.6	15	15	5
W	33	54	8.4	73	2.5	58	5.9	14
Ni	31	47	76	1864	5.3	1539	71	325
Ti	16	63	7	32	5	24	2	8
S	5.6	6.9	4.8	6.9		2.1	7.5	4.8
V	0.20	0.40	0.08	0.80	0.05	0.66	0.03	0.14
Mn	1.9	2.9	2.2	3.3	0.69	2.22	1.5	1.1
Co	4.2	4.9	1.4	8.7	0.3	7.4	1.1	1.4
Zr	4.0	5.4	1.1	1.8	0.56	1.25	0.49	0.54
Cu	1.9	2.0	0.7	1.5	0.25	0.84	0.40	0.66
Sr	0.41	0.38	0.09	0.17	0.07	0.13	0.03	0.04
Sn	3.2	2.5	1.9	2.2	0.01	0.71	1.9	1.5
Sb	0.4	0.3	0.2	0.3	<0.01	0.08	0.3	0.2
Ba	1.2	1.1	0.3	0.41	<0.01	<0.01	0.01	<0.01
Sum	668	882	686	6883	341	5713	348	1169
Mass	2377	3446	2378	17328	1213	14344	1165	2985
% det.	28%	26%	29%	40%	28%	40%	30%	39%