Canonical ingredient
Sulfur dioxide
Sulphur Dioxide
2 linked products
Official identifiers
Names and synonyms
- Sulfur dioxide (en)
- Dioxyde de soufre (fr-CA)
Source-scoped chemical properties
Every value keeps its own authority, licence and retrieval date. Conflicting values are not silently merged.
- canada dsl listing
- listed
- canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03 Official record ↗
- dsl bioaccumulative
- No
- canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03 Official record ↗
- dsl human health priority
- Low
- canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03 Official record ↗
- dsl inherently toxic aquatic
- No
- canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03 Official record ↗
- dsl meets cepa categorization
- No
- canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03 Official record ↗
- dsl meets environmental
- No
- canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03 Official record ↗
- dsl meets human health
- No
- canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03 Official record ↗
- dsl persistent
- Yes
- canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03 Official record ↗
- dsl substance category
- Inorganics
- canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03 Official record ↗
Official environmental reports
Facility and company names are reported to NPRI. A reported name is not treated as a verified corporate identity until it is matched to a government business registry.
- ALDEX CHEMICAL2024
Storage / Handling · 0.196 tonnes
Aldex Chemical Co. Ltd. · Granby, QC · INRP/NPRI 105
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗ Fugitive · 223.221 tonnes
Aluminerie Alouette inc. · Sept-Îles, QC · INRP/NPRI 4778
Official NPRI dataset ↗Stack / Point · 11765.724 tonnes
Aluminerie Alouette inc. · Sept-Îles, QC · INRP/NPRI 4778
Official NPRI dataset ↗Fugitive · 7.376 tonnes
Rio Tinto Alcan Inc · Jonquière, QC · INRP/NPRI 27853
Official NPRI dataset ↗Stack / Point · 976.151 tonnes
Rio Tinto Alcan Inc · Jonquière, QC · INRP/NPRI 27853
Official NPRI dataset ↗Fugitive · 88.815 tonnes
Ne pas prendre - Alcoa Canada Co. · Baie-Comeau, QC · INRP/NPRI 2038
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗Stack / Point · 4352.369 tonnes
Ne pas prendre - Alcoa Canada Co. · Baie-Comeau, QC · INRP/NPRI 2038
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗Fugitive · 125.03 tonnes
Aluminerie de Bécancour inc. · Bécancour, QC · INRP/NPRI 1071
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗Stack / Point · 6522.37 tonnes
Aluminerie de Bécancour inc. · Bécancour, QC · INRP/NPRI 1071
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗Fugitive · 34.08 tonnes
Compagnie de gestion Alcoa - Lauralco · Deschambault, QC · INRP/NPRI 4782
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗Stack / Point · 4325.04 tonnes
Compagnie de gestion Alcoa - Lauralco · Deschambault, QC · INRP/NPRI 4782
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗Fugitive · 0.0003 tonnes
14969499 Canada Inc · Amos, QC · INRP/NPRI 8618
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗Stack / Point · 23.2301 tonnes
14969499 Canada Inc · Amos, QC · INRP/NPRI 8618
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗Stack / Point · 36.31647 tonnes
ArcelorMittal Produits Longs Canada s.e.n.c · Contrecoeur, QC · INRP/NPRI 3649
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗Stack / Point · 49.96753 tonnes
ArcelorMittal Produits Longs Canada s.e.n.c · Contrecoeur, QC · INRP/NPRI 2986
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗Stack / Point · 1.5 tonnes
Axiall Canada Inc. · Beauharnois, QC · INRP/NPRI 765
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗- BITUMAR2024
Storage / Handling · 14.7 tonnes
Bitumar Inc. · Montréal, QC · INRP/NPRI 6282
Official NPRI dataset ↗ - Bromont2024
Stack / Point · 0.00345 tonnes
Unifix Inc. · Bromont, QC · INRP/NPRI 6394
Official NPRI dataset ↗ Stack / Point · 688.12 tonnes
Cascades Canada ULC · Temiscouata-sur-le-Lac, QC · INRP/NPRI 1872
Official NPRI dataset ↗Stack / Point · 1059.673 tonnes
Hydro-Québec · Cap-aux-Meules, Îles-de-la-Madeleine, QC · INRP/NPRI 6130
Official NPRI dataset ↗Stack / Point · 89.44 tonnes
Kruger Énergie Bromptonville S.E.C. · Sherbrooke, QC · INRP/NPRI 8642
Official NPRI dataset ↗Stack / Point · 0.16 tonnes
Université Laval · Québec, QC · INRP/NPRI 6454
Official NPRI dataset ↗Stack / Point · 0.36941 tonnes
Centre hospitalier de l'Université de Montréal · Montréal, QC · INRP/NPRI 30909
Official NPRI dataset ↗Stack / Point · 84.974165 tonnes
Ville de Longueuil · Longueuil, QC · INRP/NPRI 5528
Official NPRI dataset ↗Stack / Point · 0.037 tonnes
Alstom Transportation Canada Inc. · Dorval, QC · INRP/NPRI 5463
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗Stack / Point · 0.264 tonnes
Chimie Parachem s.e.c · Montréal-Est, QC · INRP/NPRI 4569
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗- Château-Richer2024
Stack / Point · 0.0469 tonnes
Produits forestiers Résolu · Château-Richer, QC · INRP/NPRI 8553
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗ Stack / Point · 2146.5 tonnes
Ciment Québec inc. · Saint-Basile, QC · INRP/NPRI 5548
Official NPRI dataset ↗Stack / Point · 1681.8 tonnes
Lafarge Canada Inc. · Saint-Constant, QC · INRP/NPRI 5474
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗Stack / Point · 0.0595 tonnes
Compagnie Alpek Polyester Canada inc. · Montréal-Est, QC · INRP/NPRI 8684
Official NPRI dataset ↗Stack / Point · 83.849973 tonnes
Domtar Inc. · Windsor, QC · INRP/NPRI 1195
Official NPRI dataset ↗Stack / Point · 0.00074 tonnes
Dupont Canada · Thetford Mines, QC · INRP/NPRI 5445
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗Stack / Point · 471.23 tonnes
Elkem Metal Canada Inc. · Chicoutimi, QC · INRP/NPRI 6344
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗Stack / Point · 0.819 tonnes
Busque & Laflamme Inc · Saint-Benoît-Labre, QC · INRP/NPRI 6283
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗Stack / Point · 13.797 tonnes
Société en commandite FF Soucy WB · Rivière-du-Loup, QC · INRP/NPRI 4790
Official NPRI dataset ↗- Fibrek SENC2024
Stack / Point · 291.96247 tonnes
Fibrek S.E.N.C. · St-Félicien, QC · INRP/NPRI 3242
Official NPRI dataset ↗ Fugitive · 0.2894 tonnes
Glencore Canada Corporation · Rouyn-Noranda, QC · INRP/NPRI 3623
Official NPRI dataset ↗Stack / Point · 19022.1522 tonnes
Glencore Canada Corporation · Rouyn-Noranda, QC · INRP/NPRI 3623
Official NPRI dataset ↗Fugitive · 0.02801 tonnes
Glencore Canada Corporation · Montréal-Est, QC · INRP/NPRI 3916
Official NPRI dataset ↗Stack / Point · 146.561 tonnes
Glencore Canada Corporation · Montréal-Est, QC · INRP/NPRI 3916
Official NPRI dataset ↗- Incinérateur2024
Stack / Point · 9.89 tonnes
Ville de Québec · Québec, QC · INRP/NPRI 211
Official NPRI dataset ↗ Stack / Point · 101.026 tonnes
ArcelorMittal Infrastructure Canada s.e.n.c. · Port-Cartier, QC · INRP/NPRI 27752
Official NPRI dataset ↗Stack / Point · 1170 tonnes
KRONOS Canada, Inc. · Varennes, QC · INRP/NPRI 1561
Official NPRI dataset ↗Fugitive · 1.22 tonnes
Kraft Nordic, s.e.c. · Lebel-sur-Quévillon, QC · INRP/NPRI 279
Official NPRI dataset ↗Stack / Point · 121.87 tonnes
Kraft Nordic, s.e.c. · Lebel-sur-Quévillon, QC · INRP/NPRI 279
Official NPRI dataset ↗Stack / Point · 39.175 tonnes
Kruger inc · Trois-Rivières, QC · INRP/NPRI 5515
Official NPRI dataset ↗Stack / Point · 69.45 tonnes
Kruger Wayagamack S.E.C. · Trois-Rivières, QC · INRP/NPRI 2502
Official NPRI dataset ↗Stack / Point · 106.329 tonnes
La Cie Matériaux de Construction BP Canada · LaSalle, QC · INRP/NPRI 6241
Corporate identity awaiting government-registry validation.
Official NPRI dataset ↗
Equivalent concepts in other registries
These links require an exact shared identifier; names alone are never sufficient.
- Sulfur dioxide
CA · CAS 7446-09-5
Verification source
Safety and technical documents
General references and manufacturer-specific SDS documents are kept separate.
End-to-end traceability
Only links supported by an identified source are published. Missing evidence remains explicitly unknown.
Evidence still missing
- Country or region of origin
- Raw-material producer
- Ingredient manufacturer
- Distributor
- Transformation steps
Documented origins
No origin has been proven yet by an explicit source.
Documented organizations
No organization has been proven yet by an explicit source.
Documented transformations
No transformation step has been proven yet by an explicit source.
Method: a company’s registration country is never used as evidence of a material’s origin.