Kalman D, Schumacher R, Covert D, Eaton D L
Toxicol Lett. 1984 Sep;22(3):301-6. doi: 10.1016/0378-4274(84)90105-x.
This study was conducted to determine the physical and chemical characteristics of an aerosol of lead-based paint, generated in an industrial spray operation, that might influence the biological availability of lead present in inhaled aerosols. Paint aerosols were collected, and mass-size distribution was determined using a portable cascade impactor under actual occupational conditions. Approx. 2% of the particulate mass collected was in the respirable range (less than 10 micron mean aerodynamic diameter), although the maximum airborne concentration of lead was found to be 2-3 mg/m3. The lead concentration in a dried aerosol was very resistant to chemical digestion. Analysis by X-ray diffraction, atomic absorption spectroscopy and inductively coupled plasma emission spectroscopy showed approx. 11% lead by dry weight, although the wet weight concentration of lead reported by the manufacturer was 12.8%.
本研究旨在确定在工业喷涂作业中产生的铅基涂料气溶胶的物理和化学特性，这些特性可能会影响吸入气溶胶中铅的生物可利用性。在实际职业条件下，使用便携式级联冲击器收集涂料气溶胶，并确定其质量粒径分布。尽管发现铅的最大空气传播浓度为2 - 3毫克/立方米，但收集到的颗粒物质中约2%处于可吸入范围内（平均空气动力学直径小于10微米）。干燥气溶胶中的铅浓度对化学消解具有很强的抗性。通过X射线衍射、原子吸收光谱和电感耦合等离子体发射光谱分析表明，按干重计铅含量约为11%，而制造商报告的铅湿重浓度为12.8%。
