{Reference Type}: Journal Article
{Title}: Developing a guideline for measuring the total number concentration of engineering nanomaterials in workplaces in China.
{Author}: Gao X;Zou H;Xu X;Zhou L;Tang S;Yuan W;Zhang M;
{Journal}: J Occup Health
{Volume}: 61
{Issue}: 2
{Year}: Mar 2019
{Factor}: 2.57
{DOI}: 10.1002/1348-9585.12044
{Abstract}: <B>OBJECTIVE: </B>To provide a guideline for assessing the occupational exposure to nanomaterials in workplaces in China.<BR><B>METHODS: </B>Based on the basic requirement for the sampling of harmful substances, condensation particle counter/optical particle counter (CPC/OPC) was selected as the tool and the total number concentration (TNC) was used as an index to measure engineering nanomaterials in workplaces.<BR><B>RESULTS: </B>The strategy included instrument preparation, identification of particle-emission source, particle-property analysis, measurement of background concentration, concentration measurement based on working activity, concentration calculation and analysis, and recording of measurements.<BR><B>CONCLUSIONS: </B>The draft guideline based on traditional industrial hygiene practices can be used to identify the emission source of nanomaterials, qualitatively and quantitatively assess exposure to nanomaterials in workplaces.