Microbiological and Chemical Exposure Assessment
An image gallery of microorganisms.
These images were produced by staff scientists using electron microscopy and confocal microscopy for microbe visualization. These images are in the public domain and are thus free of any copyright restrictions. For public domain images, permission is not required for their use but we do ask that you credit the EPA and the contributors (found in the Photo Credit line) whenever an image is used in any publicly distributed media.