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Research seeks to improve odor emissions from farming operations

Image: Luca Magnani breathes into a olfactometer
Michael Heinz / Journal & Courier via AP
Purdue graduate student Luca Magnani breathes through an olfactometer at a university lab to get a whiff of barnyard smells.

WEST LAFAYETTE, Ind. - Purdue University students are making some extra cash through a project that might turn some of their classmates' stomachs — by sniffing livestock excrement.

Students earn $30 per session as they take whiffs of a variety of smells collected from barns filled with hogs, cows and chickens for odor research being conducted by Albert Heber, a Purdue professor of agricultural and biological engineering.

"Typically they're farm smells — manure, farm waste, hay. The only thing that is good is that we are not smelling it for a long time. It's just a sniff," said civil engineering graduate student Anuj Sharma.