Submicron organic aerosol composition during the International Chemistry Experiment in the Arctic LOwer Troposphere (ICEALOT) during March-April 2008. In Atmospheric Aerosol Submicron Particle Composition including Organic Functional Group Concentrations at Arctic Locations
Measurements of ambient aerosol particles were collected on board the R/V Knorr from 19 March 2008 to 24 April 2008 over the North Atlantic and Arctic Oceans. Ambient atmospheric submicron particles were dried using a temperature and humidity controlled inlet that faced into the wind and were sample...
| Main Authors: | , , , , |
|---|---|
| Format: | Dataset |
| Language: | unknown |
| Published: |
UC San Diego Library Digital Collections
2020
|
| Subjects: | |
| Online Access: | https://dx.doi.org/10.6075/j05d8qbb http://library.ucsd.edu/dc/object/bb9425215r |
| Summary: | Measurements of ambient aerosol particles were collected on board the R/V Knorr from 19 March 2008 to 24 April 2008 over the North Atlantic and Arctic Oceans. Ambient atmospheric submicron particles were dried using a temperature and humidity controlled inlet that faced into the wind and were sampled on 37 mm Teflon filters. These samples were frozen and transported to the laboratory for analysis by Fourier transform infrared (FTIR, Bruker Tensor 27) spectroscopy in a temperature and humidity controlled clean room. The FTIR spectrum for each filter was analyzed with an automated algorithm that baselined the spectra. Absorptivity and molar masses were used to convert peak area at specific wavenumbers to mass for the organic functional groups hydroxyl, alkane, amine, carboxylic acid, and carbonyl. The total organic mass (OM) is calculated as the sum of the concentrations of the organic functional groups. A select number of filters collected were sent to Chester laboratories for X‐ray fluorescence (XRF) spectroscopy to quantify elemental concentrations. |
|---|