Very little atmospheric ammonia data exists in Alaska, especially on the North Slope. Due to the extremely sparse observations of ammonia, estimates of typical ammonia concentrations on the North Slope have been based on global modeling studies using estimated emission inventories. Passive samplers were deployed during the 2014 summer at several sites in interior and northern Alaska. The completed study was comprised of 19 deployed passive samplers as well as seven travel blanks incorporated into the study for quality assurance purposes. Three monthly-deployed samples and one quarterly sample were collected at Inigok, Umiat, Bettles and Fairbanks. Three monthly duplicate samples were collected at the Inigok station. The study generally followed standard operating procedures established by the National Atmospheric Deposition Program (NADP) for its Ammonia Monitoring Network (AMoN) program
