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Journal article

Quantification of aerosol chemical composition using continuous single particle measurements

Jeong C, McGuire M, Godri K, Slowik J, Rehbein P, Evans G...(+6 more)

Atmospheric Chemistry and Physics, vol. 11, issue 14 (2011) pp. 7027-7044

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Abstract

Mass concentrations of sulphate, nitrate, ammo- nium, organic carbon (OC), elemental carbon (EC) were de- termined from real time single particle data in the size range 0.13.0µm measured by an Aerosol Time-of-Flight Mass Spectrometer (ATOFMS) at urban and rural sites in Canada. To quantify chemical species within individual particles mea- sured by an ATOFMS, ion peak intensity of m/z 97 for sul- phate, 62 for nitrate, +18 for ammonium, +43 for OC, and +36 for EC were scaled using the number and size distribu- tion data by an Aerodynamic Particle Sizer (APS) and a Fast Mobility Particle Sizer (FMPS). Hourly quantified chemical species from ATOFMS single-particle analysis were com- pared with collocated fine particulate matter (aerodynamic diameter

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