Table 3.

Summary data inhalable dust measurements

Department	Measured (mg m–3)			Modelled geometric mean (GM)a
	Arithmetic mean	GM	range	Factory 1	Factory 2	Factory 3
Compounding	0.7	0.3	0.0–3.9	0.2	0.3	0.5
Laboratory	0.7	0.4	0.1–2.2	0.3	0.4	0.7
Stripping	3.9	3.0	0.7–12.3	2.1	2.5	4.1
Tumbling	1.9	1.7	0.4–4.5	1.1	1.3	2.2
Chlorine	1.1	0.7	0.3–8.4	0.6	0.8	n/a
QA/QC	1.4	1.0	0.2–9.5	0.8	1.0	1.6
Packing	2.0	1.3	0.2–9.3	1.0	1.2	1.9
Storage	1.7	1.2	0.2–6.5	0.9	1.1	1.7
Maintenance	1.9	1.1	0.3–10.3	0.9	1.0	1.7
Office/admin	0.2	0.1	0.0–0.9	0.1	0.1	0.2
Total	1.7	0.9	0.0–12.3
S bw b					0.1
S ww c					0.8

^aMixed effects model to account for repeated measurements amongst workers.

^bS_bw= estimated between-worker variance.

^cS_ww = estimated within-worker variance.