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Capabilities / Instruments

ACSM

Aerosol Chemical Speciation Monitor

Baseline Instrument, External Instrument, Guest

The aerosol chemical speciation monitor is a thermal vaporization, electron impact, ionization mass spectrometer that measures bulk chemical composition of the rapidly evaporating component of sub-micron aerosol particles in real time. Standard measurements include mass concentrations of organics, sulfate, nitrate, ammonium, and chloride.

Primary Measurements

Handbook Browse Data

Contact

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Melita Keywood
Lead Mentor: KCG Centre for Australian Weather and Climate Research
Maria Anna Zawadowicz
Lead Mentor Brookhaven National Laboratory

Related Data Announcements

Users Ask for New Arctic Aerosol Measurements, and ARM Listens

References

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Mayol-Bracero et al. ARM FY2025 Aerosol Operations Plan. 2024. 10.2172/2482516.
Watson et al. Aerosol Chemical Speciation Monitor (ACSM) Instrument Handbook. 2017. 10.2172/1375336.

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Resources

Atmospheric Radiation Measurement (ARM) | Reviewed October 2024