Field intercomparison of continuous ambient FRM and FEM NO 2 instruments in the Athabasca Oil Sands Region, Alberta, Canada and the potential impact on ambient regulatory compliance ...

• Main Authors: Landis, Matthew S., Edgerton, Eric S.
• Format: Text
• Language: unknown
• Published: Taylor & Francis 2023
• Subjects: Medicine; Cell Biology; Environmental Sciences not elsewhere classified; Chemical Sciences not elsewhere classified; Ecology; FOS Biological sciences; Biological Sciences not elsewhere classified; Inorganic Chemistry; FOS Chemical sciences; Science Policy; Canada; Wood Buffalo
• Online Access: https://dx.doi.org/10.6084/m9.figshare.24520571.v2; https://tandf.figshare.com/articles/journal_contribution/Field_intercomparison_of_continuous_Ambient_FRM_and_FEM_NO_sub_2_sub_Instruments_in_the_Athabasca_Oil_Sands_Region_Alberta_Canada_and_the_Potential_Impact_on_Ambient_regulatory_compliance/24520571/2

The Canadian Federal Government promulgated new and lower NO 2 Ambient Air Quality Standards (CAAQS) that went into effect in 2020 with additional decreases scheduled for 2025. The new hourly and annual NO 2 CAAQS are 60 and 17 ppb, respectively, and the 2025 hourly and annual CAAQS are 42 and 12 ppb, respectively. The province of Alberta has also promulgated Ambient Air Quality Objectives (AAAQO) for NO 2 currently set to 159 and 24 ppb on an hourly and annual basis, respectively. The Wood Buffalo Environmental Association (WBEA) in northeastern Alberta, Canada monitors NO 2 at 21 community and industrial sites throughout the Athabasca Oil Sands Region (AOSR), for regulatory compliance using Thermo-Environmental (TEI) Model 42i Federal Reference Method (FRM) designated NO-NO 2 -NOx analyzers. The 42i measures NO directly via NO-O 3 chemiluminescence, and NOx following the reduction of oxidized nitrogen to NO by a heated internal molybdenum converter. The difference between the NOx and NO channels is ...