Assessing the accuracy of commercially available gas sensors for the measurement of ambient ozone and nitrogen dioxide.

ABSTRACT: The objective of the National Institute for Occupational Safety and Health (NIOSH) accuracy criterion is to ensure that measurements from monitoring devices are within ±25% of the true concentration of the analyte with 95% certainty. To determine whether NO₂ and O₃ sensors meet this criterion, three commercially available units (Cairclip O₃/NO₂, Aeroqual NO₂, and Aeroqual O₃ sensors) were co-located three times with validated instruments (NO_x chemiluminescence [NO_2mon] and photometric O₃ analyzers [O_3mon]) at an outdoor monitoring station. As cofactors of sensor performance such as temperature (T) and relative humidity (RH) potentially influence the response of NO₂ and O

SUBMITTER: Isiugo K 

PROVIDER: S-EPMC6324576 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature