Table 2 Arithmetic mean (AM), geometric mean (GM), geometric standard deviation (GSD) and 5th–95th percentile of exposure measurements of wood dust (mg/m³) by gender and job category, SIREP (1996–2006)

Job category* (ISCO-88 code)	No†	AM	GM	GSD	5th centile–95th centile
Men: all wood-related	9210	1.48	0.99	1.66	0.15–3.80
Wood-processing-plant operators (8141)	252	2.08	1.38	2.91	0.20–4.50
Industrial robot operators (8170)	118	1.93	1.27	2.45	0.09–3.60
Carpenters and joiners (7124)	148	1.72	1.20	1.90	0.25–3.80
Woodworking machine setters, and setter-operators (7423)	4585	1.62	1.12	1.74	0.20–4.00
Basketry weavers, brush makers and related workers (7424)	109	1.50	1.03	2.28	0.21–4.70
Wood and related products assemblers (8285)	621	1.38	0.84	1.70	0.12–3.90
Transport labourers and freight handlers (9330)	49	1.30	0.93	0.85	0.30–2.70
Wood-products machine operators (8240)	2525	1.26	0.84	1.33	0.10–3.49
Floor layers and tile setters (7132)	56	1.12	1.05	0.19	0.62–1.80
Painters and related workers (7141)	50	0.97	0.72	0.75	0.22–2.17
Stock clerks (4131)	127	0.87	0.56	0.93	0.18–2.44
Industrial-machinery mechanics and fitters (7233)	67	0.85	0.63	0.55	0.20–2.80
Machine-tool setters and setter-operators (7223)	88	0.70	0.56	0.25	0.18–1.40
Manufacturing labourers (9320)	84	0.68	0.42	0.62	0.10–3.20
Women: all wood-related	1627	1.25	0.87	1.26	0.19–3.70
Woodworking machine setters, and setter-operators (7423)	801	1.43	1.04	1.42	0.20–4.10
Wood-processing-plant operators (8141)	141	1.41	1.09	1.26	0.20–3.88
Wood and related products assemblers (8285)	102	1.04	0.57	1.53	0.10–3.90
Wood-products machine operators (8240)	322	1.03	0.73	0.75	0.10–2.70
Machine-tool setters and setter-operators (7223)	75	0.91	0.69	0.75	0.41–3.20
Manufacturing labourers (9320)	50	0.50	0.42	0.14	0.20–1.65
All wood-related	10 837	1.44	0.97	1.61	0.15–3.80

*The job categories with the highest and lowest arithmetic mean where at least 50 exposure measurements were available; †Number of TWA-8 exposure measurements.