Articles | Volume 14, issue 6
Atmos. Meas. Tech., 14, 4355–4374, 2021
https://doi.org/10.5194/amt-14-4355-2021
Atmos. Meas. Tech., 14, 4355–4374, 2021
https://doi.org/10.5194/amt-14-4355-2021

Research article 14 Jun 2021

Research article | 14 Jun 2021

Quantifying organic matter and functional groups in particulate matter filter samples from the southeastern United States – Part 2: Spatiotemporal trends

Alexandra J. Boris et al.

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on amt-2020-401', Anonymous Referee #1, 28 Jan 2021
    • AC1: 'Reply on Anonymous Referee #1', Alexandra Boris, 04 Apr 2021
  • RC2: 'Comment on amt-2020-401', Anonymous Referee #2, 19 Feb 2021
    • AC2: 'Reply on Anonymous Referee #2', Alexandra Boris, 04 Apr 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Alexandra Boris on behalf of the Authors (04 Apr 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to technical corrections (09 Apr 2021) by Charles Brock
Short summary
Infrared spectrometry can be applied in routine monitoring of atmospheric particles to give comprehensive characterization of the organic material by bond rather than species. Using this technique, the concentrations of particle organic material were found to decrease 2011–2016 in the southeastern US, driven by a decline in highly aged material, concurrent with declining anthropogenic emissions. However, an increase was observed in the fraction of more moderately aged organic matter.