Development of a New Sequential Extraction Procedure of Nickel Species on Workplace Airborne Particulate Matter: Assessing the Occupational Exposure to Carcinogenic Metal Species

Table 6

Determination of Ni’s fraction in powders (μg/g) and environmental samples (μg/m³) collected in the departments of the steel production facility.

Powder (g/g)	NiSO4	Ni3S2	Ni(0)	NiO	Σ	Ni Tot AAS
A (1.2 mg)	/	/	145	196	341	423
B (1.1 mg)	2727	395	745	6673	10540	11509
C (0.1mg)	/	/	323	356	679	695
D (1.0 mg)	580	232	2180	4440	7432	7538
Filters (g/m^3)	NiSO4	Ni3S2	Ni(0)	NiO	Σ	Ni Tot AAS
Filter A	0.32	0.07	0.64	1.5	2.53	2.81
Filter B	0.25	0.67	0.94	1.0	2.86	3.12
Filter C	0.76	0.28	1.6	3.5	6.14	6.44
Filter D	0.87	0.73	4.0	5.0	10.6	10.88
Filter E	0.89	0.24	0.55	1.3	2.98	3.50