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Chart For Sulphur Dioxide Click for parameter information.

Select one or more stations to see the result history for Sulphur Dioxide. If you wish, a date range can be entered to limit the data results. If no dates are specified, results for the last week will be displayed.

Date display range

Data is retained for up to three years. Please note that in some cases, less than three years of data may be available.
Last Sample
Saint John – West Side (Government of New Brunswick) 2025-10-25 19:00
Saint John - Expansion Ave (Irving Oil Ltd) 2025-10-25 19:00
Saint John - Silver Falls Site (Irving Oil Ltd) 2025-10-25 19:00
Saint John – Champlain Heights (Irving Oil Ltd) 2025-10-25 19:00
Saint John - Midwood Ave. (Irving Oil Ltd) 2025-10-25 19:00
Saint John – Castle Street (Government of New Brunswick) 2025-10-25 19:00
Saint John - Grandview west site (Irving Oil Ltd) 2025-10-25 19:00
Lake Utopia Site (Lake Utopia Paper) 2025-09-08 10:00
Colson Cove - Lorneville cemetary (Énergie NB Power) 2025-10-25 09:00
Colson Cove - Manawagonish Rd. (Énergie NB Power) 2025-10-25 09:00
Colson Cove - Musquash (Énergie NB Power) 2025-10-25 09:00
Millbank - Rockcliff Subd. (Énergie NB Power) 2025-10-25 09:00
Millbank - Lower Newcastle (Énergie NB Power) 2025-10-25 09:00
Belledune - Municipal Hall (Énergie NB Power) 2025-10-25 09:00
Belledune - Jacquet River (Énergie NB Power) 2025-10-25 09:00
Belledune - Madran (Énergie NB Power) 2025-10-25 09:00
Belledune - Belldune East (Énergie NB Power) 2025-10-25 09:00
Belledune - Pointe Verte (Énergie NB Power) 2025-10-25 09:00
Edmundston (Government of New Brunswick) 2025-10-25 19:00
Atholville - Beauvista St. (AV Cell Inc.) 2025-10-25 19:00
Atholville - Boom Rd (AV Cell Inc.) 2025-10-25 19:00
Edmundston - Rice Street (Twin Rivers Paper Co) 2025-10-25 19:00
Edmundston - St-Mary's site (Twin Rivers Paper Co) 2025-10-25 19:00
Nackawic - Caverhill site (AV Nackawic Inc) 2025-10-25 19:00
Saint John – Forest Hills - IOL (Irving Oil Ltd) 2025-10-25 19:00
Lake Utopia – Route 780 (Lake Utopia Paper) 2025-10-25 19:00
Lake Utopia – Route 785 (Lake Utopia Paper) 2025-10-25 19:00

For information about how air quality conditions may affect your health, please consult the current Air Quality Health Index values.

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Hourly Average Values:

Date
Unless otherwise specified, data is reported in Atlantic Standard Time (UTC-4) format.