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ATom: Measurements of Soluble Acidic Gases and Aerosols (SAGA)

Overview

DOIhttps://doi.org/10.3334/ORNLDAAC/1748
Version1
Project
Published2020-05-05
Updated2020-05-05
Usage3 downloads

Description

Soluble acidic gases and aerosols (SAGA) were collected with two related installations; a mist chamber/ion chromatography (MC/IC) system and a paired bulk aerosol system. The MC/IC system measures in situ atmospheric distributions of nitric acid (plus < 1 um NO3 aerosol) and fine (< 1 um) aerosol sulfate at an approximately 80-second interval. The paired bulk aerosol system collects particulates onto filters for subsequent analysis. Collected filters were first extracted with water to obtain the water-soluble (WS) constituents and then extracted again using methanol to collect the methanol soluble (MS) fraction. The light absorption of filtered extracts was measured from 300 to 700 nm. Ion chromatography on aqueous extracts of the bulk aerosol samples collected on Teflon filters were used to quantify soluble ions (Cl-, Br-, NO3-, SO42-, C2O42-, Na+, NH4+, K+, Ca+, and Mg+). The SAGA system is provided by the University of New Hampshire (UNH).

Science Keywords

  • ATMOSPHERE
  • AEROSOLS
  • NITRATE PARTICLES
  • ATMOSPHERE
  • AIR QUALITY
  • ATMOSPHERE
  • AEROSOLS
  • CHEMICAL COMPOSITION
  • ATMOSPHERE
  • AEROSOLS
  • SULFATE PARTICLES

Data Use and Citation

This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use Policy.

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Crosscite Citation Formatter
Dibb, J.E. 2019. ATom: Measurements of Soluble Acidic Gases and Aerosols (SAGA). ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1748

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Dataset has 1 companion files.

  • ATom_SAGA_Instrument_Data.pdf