Major Ions and Acidifying Gases

Ambient air is sampled daily, with a nominal 24-hour sampling period, on a Canadian Air and Precipitation Monitoring Network (CAPMoN) sequential sample head located 10 meters above ground. Air is drawn through a three-stage filter pack consisting of 47-millimeter Teflon, nylon and cellulose filters. Particulate Cl-, NO3-, SO4=, NH4+, Na+, K+, Ca++ and Mg++ are collected on the Teflon filter, gaseous HNO3 and a small amount of SO2 are collected by the nylon filter, and gaseous SO2 and residual HNO3 are collected by the K2CO3-impregnated cellulose filter. Filter loadings determined by laboratory extraction and analysis are blank corrected and divided by calibrated sample air volume to get atmospheric concentration in micrograms per cubic meter at International Union of Pure and Applied Chemistry (IUPAC) standard temperature and pressure. The sampling and analysis methodology is described in Sirois and Fricke, 1992.

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Metadata Record Information

File Identifier
e73c7f47-df9c-4877-923c-20e09db28176 XML
Date Stamp
2022-06-28T17:29:27
Metadata language

eng; CAN
Character set
UTF8
Hierarchy Level
Dataset
Editor
  Government of Canada; Environment and Climate Change Canada; Science and Technology
Toronto , Ontario , M3H 5T4 , Canada
 

Data identification

Date (Publication)
2021-11-28
Date (Creation)
2021-07-28
Status
On going
Metadata language

eng; CAN
Character set
utf8
Topic category
  • Climatology, meteorology, atmosphere
Maintenance and Update Frequency
As needed
Editor
  Government of Canada; Environment and Climate Change Canada; Science and Technology Branch/Air Quality Research Division
Toronto , Ontario , Canada

Keywords

Theme

  • Air, Air quality, Atmospheric monitoring, NAtChem, CAPMoN, Combined atmospheric gases and particles, Acidifying species, Acidifying gases, Major ions, Filter pack, Dry deposition, Regional air quality, Base cations, Sulphate, Nitrate, Ammonium, Particulate matter, Nitric acid, Sulfate

Government of Canada Core Subject Thesaurus

  • Air quality

Business Functions

  • Provide Air Quality/UV Information Products and Services

  • Monitor Air Quality and UV Parameters and Manage Data
 
Use Limitation

Open Government Licence - Canada ( http://open.canada.ca/en/open-government-licence-canada )

Access Constraints
License
Use Constraints
License
Begin Date
2012-01-28

Extent

N
S
E
W
thumbnail


 
 

Ref. system Reference Systems

Reference system identifier
http://www.epsg-registry.org / EPSG:4326 /
 

Distribution

Distribution Formats

Distribution format
  • CSV ( 1 )

 
Distributor
  Government of Canada; Environment and Climate Change Canada; Science and Technology Branch/Air Quality Research Division
 
 

Overviews

N
S
E
W
thumbnail


Keywords

Air, Air quality, Atmospheric monitoring, NAtChem, CAPMoN, Combined atmospheric gases and particles, Acidifying species, Acidifying gases, Major ions, Filter pack, Dry deposition, Regional air quality, Base cations, Sulphate, Nitrate, Ammonium, Particulate matter, Nitric acid, Sulfate
Business Functions
Monitor Air Quality and UV Parameters and Manage Data Provide Air Quality/UV Information Products and Services
Government of Canada Core Subject Thesaurus
Air quality

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