Evaluation of two collocated federal equivalent method PM_2.5 instruments over a wide range of concentrations in Sarajevo, Bosnia and Herzegovina.

ABSTRACT: Two widely used PM_2.5 monitors in the United States (U.S.) designated as federal equivalent methods (FEMs) by the U.S. Environmental Protection Agency were collocated for 15 months in Sarajevo, Bosnia and Herzegovina (BiH) to evaluate their comparability. With differing measurement principles, the FEMs (Met One BAM-1020 and Teledyne API T640) exhibited unique responses to the significant range in PM_2.5 over the study period. During the winter months when concentrations greatly increased (e.g., daily PM_2.5 > 100 μg m^-3), the BAM-1020 had intermittent malfunctioning nozzle contact to the collection tape, resulting in periods of data invalidation. Increased operator observation and doubling the cleaning frequency were required to maintain proper ope

SUBMITTER: Hagler G 

PROVIDER: S-EPMC9907456 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature