Medical News Today: Bacteria From Dog Poop In City Air

The air of two Midwestern US cities contains significant amounts of bacteria from feces, particularly dog poop, according to a new study led by the University of Colorado Boulder, published recently in the journal Applied and Environmental Microbiology. The researchers tested the air of four locations in the Great Lakes region, and found that, in addition to the more predictable organic sources (such as leaves and soil), fecal material, most likely from dogs, often represents an unexpected source of atmospheric bacteria in urbanized areas during the winter.