Inhalable rutile nanoparticulate in atmospheric dust.

Analysis of road dust suggests that high rutile concentrations are deposited on the street and might be circulated in the air by vehicle and pedestrian traffic. Size distribution analysis from TEM images showed a heterogeneous sample composed mainly of nanoparticles with a size range from 40 nm to 60 nm.对道路尘埃的分析显示，街道表面沉积有高浓度的金红石（rutile），这类物质可能会随车辆与行人的通行在空气中扩散。通过透射电子显微镜（Transmission Electron Microscope, TEM）图像开展的粒径分布分析表明，该样本为非均质样品，其主要成分为粒径介于40纳米至60纳米之间的纳米颗粒。