Putting their noses to the grindstone ... er, rather, to the country air.
A group of Iowa state employees has been specially trained to sniff out odors to determine if some of them are too stinky. Odors checked could include livestock confinements, ammonia and hydrogen sulfide.
Called the Nasal Rangers, 34 odor inspectors were trained with an olfactometer, a device resembling a radar gun that helps determine the level of stink. If odor can still be detected after the olfactometer dilutes the air seven times with filtered air, it's considered excessive.
The findings of the Nasal Rangers will be part of a two-year study to be used by Iowa lawmakers to decide if the state needs new standards for air quality.