Recently, Arizona Instrument’s lab manager and research chemist had the unique opportunity to visit a wastewater treatment facility in Tolleson, Ariz. The invitation was extended by an operations manager who was concerned about an "unpleasant smell" emanating from the area. In accordance with their air-quality testing protocol, when Maricopa County receives three odor complaints from nearby residents, the facility must test the air at the closest occupied location. In this intance, that location was an elementary school on the corner of the nearest major intersection.AZI’s representatives brought a handheld Gold Film Hydrogen Sulfide gas analyzer (Jerome 605) fitted with an
