Instituto de Biotecnologia e Bioengenharia/Instituto Superior Técnico, Universidade Técnica de Lisboa, Lisboa, Portugal.
Inhal Toxicol. 2012 Sep;24(11):774-81. doi: 10.3109/08958378.2012.717648.
This article describes work performed on the assessment of the levels of airborne ultrafine particles emitted in two welding processes metal-active gas (MAG) of carbon steel and friction-stir welding (FSW) of aluminium in terms of deposited area in alveolar tract of the lung using a nanoparticle surface area monitor analyser. The obtained results showed the dependence from process parameters on emitted ultrafine particles and clearly demonstrated the presence of ultrafine particles, when compared with background levels. The obtained results showed that the process that results on the lower levels of alveolar-deposited surface area is FSW, unlike MAG. Nevertheless, all the tested processes resulted in important doses of ultrafine particles that are to be deposited in the human lung of exposed workers.
本文描述了使用纳米颗粒表面积监测仪评估两种焊接工艺（金属活性气体（MAG）碳钢和搅拌摩擦焊接（FSW）铝）中空气中超细微粒的排放水平，这些超细微粒在肺泡中的沉积面积。结果表明，超细微粒的排放与工艺参数有关，并与背景水平相比，清楚地证明了超细微粒的存在。结果表明，与 MAG 相比，FSW 工艺产生的肺泡沉积表面积较低。然而，所有测试的工艺都会产生大量的超细微粒，这些超细微粒将沉积在暴露于这些工艺的工人的肺部。
