Cavlović Anka Ozana, Beljo Lučić Ružica, Jug Matija, Radmanović Kristijan, Bešlić Ivan
Arh Hig Rada Toksikol. 2013 Sep;64(3):379-84. doi: 10.2478/10004-1254-64-2013-2316.
Woodworkers' exposure to airborne particles is measured with different sampling techniques throughout the world. Due to a great number of exposure data obtained with different samplers, European countries have aimed over the last ten years to find a conversion factor for mass concentrations that would render these measurements comparable. Following the accepted EU standards and regulations, we replaced a 25 mm open-faced (OF) filter holder with an IOM head to determine woodworkers' exposure to inhalable dust and establish an IOM/OF sampler ratio that might serve as a reliable factor for converting the existing OF data to IOM dust mass concentration in the industrial environment. For this side-by-side sampling we used personal 25 mm OF (N=29) and IOM (N=29) sampling heads over eight working hours. The obtained IOM/OF ratios ranged between 0.7 and 2.3. However, mass concentrations obtained by IOM and OF samplers did not significantly differ. Our findings suggest that there is no need for conversion of the existing OF data for workers exposed to wood dust, provided that dust mass concentrations in the working environment range between 1 mg m-3 and 7 mg m-3. Future side-by-side measurements should also involve environments with low wood dust mass concentrations.
世界各地都采用不同的采样技术来测量木工接触空气中颗粒物的情况。由于使用不同采样器获得了大量的接触数据，在过去十年中，欧洲国家致力于找到一个质量浓度转换因子，以使这些测量结果具有可比性。遵循公认的欧盟标准和法规，我们用一个IOM采样头取代了一个25毫米开面（OF）滤膜夹，以确定木工接触可吸入粉尘的情况，并建立一个IOM/OF采样器比率，该比率可作为将现有OF数据转换为工业环境中IOM粉尘质量浓度的可靠因子。对于这种并行采样，我们在八个工作小时内使用了个人25毫米OF（N = 29）和IOM（N = 29）采样头。获得的IOM/OF比率在0.7至2.3之间。然而，IOM和OF采样器获得的质量浓度没有显著差异。我们的研究结果表明，对于接触木尘的工人，无需转换现有的OF数据，前提是工作环境中的粉尘质量浓度在1毫克/立方米至7毫克/立方米之间。未来的并行测量还应包括木尘质量浓度较低的环境。
