National Air Pollution Surveillance (NAPS) Program

The National Air Pollution Surveillance (NAPS) Program is Canada’s main source of outdoor air quality data. Established in 1969, the Program now collects and reports ambient air pollution data from almost 280 monitoring stations across Canada. These stations are located in both cities and rural areas. All data are stored in the Canada-Wide Air Quality Database (CWAQD).



The NAPS Program is managed by Environment and Climate Change Canada (ECCC) in collaboration and cooperation with provincial, territorial, and regional government monitoring networks. NAPS data support a wide range of national and international initiatives, including the Air Quality Health Index (AQHI), the Canadian Environmental Sustainability Indicators (CESI), the World Health Organization (WHO) Air Quality Database and the Canada-United States Air Quality Agreement (AQA).

Data products and information about the NAPS Program are available in the "Data and Resources" section of this page. The ECCC Data Catalogue provides pre-generated air quality data files. The NAPS Data Query Tool allows users to perform custom data searches for select datasets.



For additional information, please contact the NAPS Inquiry Centre at RNSPA-NAPSINFO@ec.gc.ca.

Basic view

Metadata Record Information

File Identifier
1b36a356-defd-4813-acea-47bc3abd859b XML
Date Stamp
2026-03-25T16:16:58.812351Z
Metadata language

eng; CAN
Character set
UTF8
Hierarchy Level
Series
Author
  Government of Canada; Environment and Climate Change Canada - Environment and Climate Change Canada ( Public Inquiries Centre)

Place Vincent Massey Building 351 Saint-Joseph Boulevard, Gatineau, Quebec, K1A 0H3, Canada
1-800-668-6767

https://www.canada.ca/en/environment-climate-change.html
 

Data identification

Title

National Air Pollution Surveillance (NAPS) Program
Date (Creation)
2019-11-28
Date (Publication)
2019-11-28
Date (Revision)
2021-06-29
Date (Revision)
2022-04-05
Date (Revision)
2022-11-14
Date (Revision)
2023-03-01
Date (Revision)
2026-03
Status
On going
Metadata language

eng
Metadata language

fra
Character set
UTF8
Topic category
  • Climatology, meteorology, atmosphere
  • Environment
Maintenance and Update Frequency
As needed
Spatial representation type
Text, table
Publisher
  Government of Canada; Environment and Climate Change Canada - Anita Pall ( Coordinator NAPS Publications & Data)

335 River Road, Ottawa, Ontario, K1A 0H3, Canada
https://www.canada.ca/en/environment-climate-change/services/air-pollution/monitoring-networks-data/national-air-pollution-program.html

Keywords

Place

  • Canada
Theme

  • data

  • atmosphere

  • ozone

  • particulate matter

  • nitrogen oxides

  • air quality

  • ambient air quality

  • lead

  • smog

  • atmospheric chemistry

  • sulphur dioxide

  • VOC

  • integrated

  • PAH

  • continuous

  • volatile organic compounds

  • polycyclic aromatic hydrocarbons

  • ground-level ozone

  • sulphur dioxide

  • carbon monoxide

  • PM2.5

  • PM10

  • CO

  • SO2

  • O3

  • speciated particulate compounds
Product

  • NAPS

  • National Air Pollution Surveillance Program

  • ambient air

  • air pollution

  • air pollutants

  • atmospheric composition monitoring

  • air quality monitoring

ECCC Information Category EN

  • Air

  • Air - Quality

Government of Canada Core Subject Thesaurus

  • Air

  • Air quality

  • Air pollution

Business Functions

  • Monitor Air Quality and UV Parameters and Manage Data

  • Provide Air Quality/UV Information Products and Services

  • Deliver Air Quality and UV Products and Services to Clients

Geography

  • National (CA)

external.theme.EC_Branch

  • Science and Technology Branch

external.theme.EC_Directorate

  • Atmospheric Science and Technology

external.theme.EC_Program_PAA

  • 3.2. Climate Change and Clean Air

external.theme.GC_Security_Level

  • Unclassified
 
Use Limitation

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

Access Constraints
License
Use Constraints
License
Begin Date
1969-01-01

Extent

N
S
E
W
thumbnail




 
 

Ref. system Reference Systems

Reference system identifier
EPSG / EPSG:4326 /
 

Distribution

Distribution Formats

Distribution format
  • TXT ( _v#)

 
Distributor
  Government of Canada; Environment and Climate Change Canada - Environment and Climate Change Canada ( Public Inquiries Centre)

Place Vincent Massey Building 351 Saint-Joseph Boulevard, Gatineau, Quebec, K1A 0H3, Canada
1-800-668-6767

https://www.canada.ca/en/environment-climate-change.html
 
 

Overviews

thumbnail

Keywords

CO Canada NAPS National Air Pollution Surveillance Program O3 PAH PM10 PM2.5 SO2 VOC air pollutants air pollution air quality air quality monitoring ambient air ambient air quality atmosphere atmospheric chemistry atmospheric composition monitoring carbon monoxide continuous data ground-level ozone integrated lead nitrogen oxides ozone particulate matter polycyclic aromatic hydrocarbons smog speciated particulate compounds sulphur dioxide sulphur dioxide volatile organic compounds
Business Functions

Deliver Air Quality and UV Products and Services to Clients Monitor Air Quality and UV Parameters and Manage Data Provide Air Quality/UV Information Products and Services
ECCC Information Category EN

Air Air - Quality
Government of Canada Core Subject Thesaurus

Air Air pollution Air quality
external.theme.EC_Branch

Science and Technology Branch
external.theme.EC_Directorate

Atmospheric Science and Technology
external.theme.EC_Program_PAA

3.2. Climate Change and Clean Air
external.theme.GC_Security_Level

Unclassified


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