Apostoli P, Porru S, Brunelli E, Alessio L
Institute of Occupational Medicine, University of Brescia, Italy.
G Ital Med Lav Ergon. 1997 Apr-Jun;19(2):8-14.
This article evaluates multiple exposures to metals in different types of metal welding such as manual metal arc for mild and stainless steel, continuous wire, submerged arc, laser and brazing. Environmental monitoring was carried out in eight different occupational situations and the inductively coupled plasma mass spectrometry technique was adopted in order to characterize exposure to several elements simultaneously and with high accuracy. The results showed that up to 23 elements could be measured. The highest concentrations were found for Al, Mn, Fr, Ni, Cr, Cu and Zn. For some elements such as In, Nd, I, Rb the concentrations were very low. A qualitative and quantitative variation in fume composition was observed at a certain distance from the welding point, which should be to taken into account when evaluating indirect exposures. It would also be possible, with this technique, to identify specific elements in the mixture which could also be measured in biological fluids.
本文评估了不同类型金属焊接（如用于低碳钢和不锈钢的手工金属电弧焊、连续焊丝焊、埋弧焊、激光焊和钎焊）中多种金属暴露情况。在八种不同的职业场景中进行了环境监测，并采用电感耦合等离子体质谱技术，以便同时高精度地表征对多种元素的暴露情况。结果表明，可测量多达23种元素。铝、锰、钫、镍、铬、铜和锌的浓度最高。对于铟、钕、碘、铷等一些元素，其浓度非常低。在距焊接点一定距离处观察到烟尘成分的定性和定量变化，在评估间接暴露时应考虑到这一点。使用该技术还可以识别混合物中的特定元素，这些元素也可以在生物体液中进行测量。
