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Si-SOA: Concentration of specific ions found in PM2.5 samples taken from the Institute of Atmospheric Physics Beijing site in August 2018 and January 2019

Update Frequency: Not Planned
Latest Data Update: 2020-01-27
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2020-02-18
Download Stats: last 12 months
Dataset Size: 1 Files | 5KB


This dataset contains both the concentration of PM2.5 in ambient air sampled at a height of 8 metres and the concentration of specific ions found in the PM2.5 samples resulting from the analysis by Ion Chromatography. The PM2.5 samples were collected in the Institute of Atmospheric Physics, Chinese Academy of Sciences, China in August 2018 and January 2019.

The data was collected to support the study of atmospheric chemistry and processes involving Silicon (Si) containing fine particles, which potentially contribute to atmospheric pollution.

These data were collected as part of the Silicon-containing secondary organic aerosols in ambient air (Si-SOA) Natural Environment Research Council (NERC) funded project.

Citable as:  Xu, J.; Shi, Z.; Harrison, R.; Fu, P. (2020): Si-SOA: Concentration of specific ions found in PM2.5 samples taken from the Institute of Atmospheric Physics Beijing site in August 2018 and January 2019. Centre for Environmental Data Analysis, date of citation.
Abbreviation: Not defined
Keywords: SI-SOA, PM2.5, ions, chromatography


Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
Access rules:
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Use of these data is covered by the following licence: When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data produced by University of Birmingham and uploaded to Centre for Environmental Data Anaylsis (CEDA) for archiving.

Data Quality:
Data is as given by the data provider, no quality control has been performed by the Centre for Environmental Data Analysis (CEDA)
File Format:
Data are BADC-CSV formatted.

Process overview

This dataset was generated by instruments deployed on platforms as listed below.
Output Description


  • units:
  • var_id: 4
  • standard_name: the concentration of PM2.5
  • long_name: PM2.5
  • var_id: 10
  • units:
  • standard_name: the concentration of ammonium ion in PM2.5
  • long_name: ammonium ion
  • units:
  • var_id: 13
  • standard_name: the concentration of calcium ion in PM2.5
  • long_name: calcium ion
  • units:
  • var_id: 6
  • standard_name: the concentration of chloride ion in PM2.5
  • long_name: chloride ion
  • units:
  • var_id: 5
  • standard_name: the concentration of fluoride ion in PM2.5
  • long_name: fluoride ion
  • var_id: 12
  • units:
  • standard_name: the concentration of magnesium ion in PM2.5
  • long_name: magnesium ion
  • units:
  • var_id: 8
  • standard_name: the concentration of nitrate ion in PM2.5
  • long_name: nitrate ion
  • var_id: 11
  • units:
  • standard_name: the concentration of potassium ion in PM2.5
  • long_name: potassium ion
  • units:
  • var_id: 9
  • standard_name: the concentration of sodium ion in PM2.5
  • long_name: sodium ion
  • units:
  • var_id: 7
  • standard_name: the concentration of sulfate ion in PM2.5
  • long_name: sulfate ion

Co-ordinate Variables

  • standard_name: time
  • long_name: DAY
  • units:
  • var_id: 3
  • standard_name: time
  • long_name: MONTH
  • units:
  • var_id: 2
  • standard_name: time
  • long_name: YEAR
  • units:
  • var_id: 1
Temporal Range
Start time:
End time:
Geographic Extent