Abstract
SUMMARYA method is presented for the collection of small (< 1 μm) particles from air samples. Examples of its application are the monitoring of environmental pollutants in the working environment, personal monitoring of exposure to such pollutants and the characterization of particular environments such as clean rooms in the semiconductor industry. Electron microscope grids are attached to Nuclepore filters with carbon cement, the filter mounted in a standard disposable holder and air drawn through the filter with a pump. The method is simple, reproducible, allows a wide range of experimenter control, and provides specimens suitable for electron microscopy, followed by automatic image analysis.
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