Mixed-dust pneumoconiosis in a dental technician: a multidisciplinary diagnosis case report

BMC Pulmonary Medicine

Table 1 Concentration of inhalable fraction and respirable fraction, obtained by stationary and individual samplers, in the workplace

Sampling method	Sampling site	Inhalable fraction^a (mg/m³)	Respirable fraction ^b (mg/m³)
Stationary	Ceramic room	0.88	0.51
	Plaster room	1.90	0.49
	Sandblasting room	1.76	0.55
	Finishing room	0.86	0.18
Individual	Plaster preparation worker	1.55	0.60
Individual	Sandblasting worker	1.41	0.82

TLV-TWA (Threshold Limit Value—Time Weighted Average) by the American Conference of Governmental Industrial Hygienists
^aInhalable fraction = 10 mg/m³
^bRespirable Fraction = 3 mg/m³

ISSN: 1471-2466