Concentration measurements and isotopic composition of airborne molybdenum collected in an urban environment

Here, we report the first measurements of the molybdenum (Mo) isotopic composition of aerosols collected on Teflon air filters. Mo concentrations and isotopic compositions were measured at selected locations in the city of Calgary, Canada, including a residence, the isotope laboratory at the Univers...

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Bibliographic Details
Published in:Analytical and bioanalytical chemistry 2013-03, Vol.405 (9), p.2957-2963
Main Authors: Lane, Stephen, Proemse, Bernadette C., Tennant, Alexander, Wieser, Michael E.
Format: Article
Language:English
Subjects:
Aerosols
Air sampling
Analytical Chemistry
Anthropogenic factors
Aquatic ecosystems
Atmospheric chemistry
Biochemistry
Buses
Buses (vehicles)
Characterization and Evaluation of Materials
Chemical properties
Chemistry
Chemistry and Materials Science
Coal-fired power plants
Concentration (composition)
Emissions
Environmental aspects
Food Science
Garages
Identification and classification
Industrial plant emissions
Isotopes
Laboratory Medicine
Mass spectrometry
Metals
Molybdenum
Monitoring/Environmental Analysis
Original Paper
Outdoor air quality
Reference materials
Sampling
Scientific imaging
Sediments
Urban areas
Urban environments
Weather stations
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Summary:Here, we report the first measurements of the molybdenum (Mo) isotopic composition of aerosols collected on Teflon air filters. Mo concentrations and isotopic compositions were measured at selected locations in the city of Calgary, Canada, including a residence, the isotope laboratory at the University of Calgary, the University of Calgary weather station, and the City of Calgary Transit bus garage. Concentrations ranged from 0.07 ng/m 3 in the laboratory to 19.0 ng/m 3 in the bus garage. The concentrations of Mo in the air samples collected in the bus garage were the highest measured in this study. To date, there are no reported data for the Mo isotopic composition of airborne Mo. In this study, the δ 98/95 Mo values measured for the different urban sampling sites and reported relative to SRM 3134, ranged from −0.18 to +0.94 ‰. The results of this investigation suggest that measurements of Mo concentrations and isotopic compositions have the potential to trace anthropogenic emissions in an urban environment.
ISSN:1618-2642
1618-2650
DOI:10.1007/s00216-012-6660-9