Did Chinese Factory Workers Die From Inhaling Nanoparticles?

In the first known case that appears to link nanoparticles to health problems in humans, seven women fell ill after working with paint containing the particles at a factory in China, and two later died, according to an article in the European Respiratory Journal. However, some other experts debate the paper's conclusions, saying that more mundane toxic materials are to blame. The women developed itchy eruptions on their arms and faces, along with breathing problems, after working without proper protection at a factory producing paint that contains nanoparticles, which can be as tiny as one-billionth of a meter, or one nanometer. The women were all found to have