{"query":{"parameter":"hydrogen sulfide","place":"CA-QC","medium":null,"statistic":null,"kind":null},"searched":{"places":["CA-QC","CA"],"parameter_keys":["cas:7783-06-4","cas:115408-95-2","name:undisassociated hydrogen sulfide","cas:3547-33-9","cas:538-74-9","cas:97-74-5","cas:463-58-1","cas:592-88-1","cas:544-40-1","cas:352-93-2","cas:75-18-3","cas:111-47-7","cas:3698-89-3","cas:2469-45-6","cas:3698-94-0","cas:420-12-2","cas:6294-31-1","cas:625-80-9","cas:2690-08-6","cas:7446-34-6","cas:18496-25-8","name:sulfide, easily liberated","name:sulfides, total","name:hydrogen sulphide","name:sulfure d’hydrogene"],"names_matched":[["hydrogen sulfide","cas:7783-06-4"],["cyclohexene 4 ethenyl reaction products with hydrogen sulfide h2s","cas:115408-95-2"],["undisassociated hydrogen sulfide","name:undisassociated hydrogen sulfide"],["2 hydroxyethyl octyl sulfide","cas:3547-33-9","sulfide"],["benzyl sulfide","cas:538-74-9","sulfide"],["bis dimethylthiocarbamoyl sulfide","cas:97-74-5","sulfide"],["carbonyl sulfide","cas:463-58-1","sulfide"],["diallyl sulfide","cas:592-88-1","sulfide"],["dibenzyl sulfide","cas:538-74-9","sulfide"],["dibutyl sulfide","cas:544-40-1","sulfide"],["diethyl sulfide","cas:352-93-2","sulfide"],["dimethyl sulfide","cas:75-18-3","sulfide"],["dipropyl sulfide","cas:111-47-7","sulfide"],["dodecyl methyl sulfide","cas:3698-89-3","sulfide"],["dodecyl sulfide","cas:2469-45-6","sulfide"],["ethyl n octyl sulfide","cas:3698-94-0","sulfide"],["ethylene sulfide","cas:420-12-2","sulfide"],["hexyl sulfide","cas:6294-31-1","sulfide"],["isopropyl sulfide","cas:625-80-9","sulfide"],["octyl sulfide","cas:2690-08-6","sulfide"],["selenium sulfide","cas:7446-34-6","sulfide"],["sulfide","cas:18496-25-8","sulfide"],["sulfide easily liberated","name:sulfide, easily liberated","sulfide"],["diallyl sulfides","cas:592-88-1","sulfides"],["sulfides total","name:sulfides, total","sulfides"],["hydrogen sulphide","name:hydrogen sulphide","hydrogen sulphide"],["sulfure d hydrogene","name:sulfure d’hydrogene","sulfure d hydrogene"],["sulfure d hydrogene h2s","name:sulfure d’hydrogene","sulfure d hydrogene"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":38,"names":["Sulfure de diméthyle","Ethylcyclohexyl dimercaptan","Octylthio-2 éthanol","Benzyl sulfide","Monosulfure de tétraméthylthiurame","Carbonyle, sulfure de","Carbonyle, sulfure deª","Diallyl sulfide"],"says":"38 rows share a parameter key with a longer name holding \"hydrogen sulfide\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"hydrogen sulfide\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":13,"offset":0,"returned":13,"next_offset":null,"rows":[{"id":"aa9804cca7549561","parameter":"Hydrogène, sulfure d'","value":"6","value_num":6,"unit":"µg/m³","statistic":"four_minute_avg","direction":"max","kind":"limit","medium":"ambient_air","level":"regional","parameter_key":"cas:7783-06-4","place":["CA-QC"],"conditions":[],"cite":{"instrument":"ca_qc_air","title":"MELCCFP — Normes et critères québécois de qualité de l'atmosphère (version 11)","issuer":null,"edition":"Version 11","source_url":"https://environnement.gouv.qc.ca/air/criteres/normes-criteres-qualite-atmosphere.xlsx","source_sha256":null,"fetched_at":null,"source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"column":"valeur"}},{"id":"3b965637ff573ccb","parameter":"Hydrogène, sulfure d'","value":"0","value_num":0,"unit":"µg/m³","statistic":"four_minute_avg","direction":"max","kind":"printed_reference","medium":"ambient_air","level":"regional","parameter_key":"cas:7783-06-4","place":["CA-QC"],"conditions":[],"cite":{"instrument":"ca_qc_air","title":"MELCCFP — Normes et critères québécois de qualité de l'atmosphère (version 11)","issuer":null,"edition":"Version 11","source_url":"https://environnement.gouv.qc.ca/air/criteres/normes-criteres-qualite-atmosphere.xlsx","source_sha256":null,"fetched_at":null,"source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"column":"concentration_initiale"}},{"id":"883957fb8542a84f","parameter":"Hydrogène, sulfure d'","value":"2","value_num":2,"unit":"µg/m³","statistic":"annual_avg","direction":"max","kind":"limit","medium":"ambient_air","level":"regional","parameter_key":"cas:7783-06-4","place":["CA-QC"],"conditions":[],"cite":{"instrument":"ca_qc_air","title":"MELCCFP — Normes et critères québécois de qualité de l'atmosphère (version 11)","issuer":null,"edition":"Version 11","source_url":"https://environnement.gouv.qc.ca/air/criteres/normes-criteres-qualite-atmosphere.xlsx","source_sha256":null,"fetched_at":null,"source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"column":"valeur"}},{"id":"c67e4ae39bfcf8cb","parameter":"Hydrogène, sulfure d'","value":"0","value_num":0,"unit":"µg/m³","statistic":"annual_avg","direction":"max","kind":"printed_reference","medium":"ambient_air","level":"regional","parameter_key":"cas:7783-06-4","place":["CA-QC"],"conditions":[],"cite":{"instrument":"ca_qc_air","title":"MELCCFP — Normes et critères québécois de qualité de l'atmosphère (version 11)","issuer":null,"edition":"Version 11","source_url":"https://environnement.gouv.qc.ca/air/criteres/normes-criteres-qualite-atmosphere.xlsx","source_sha256":null,"fetched_at":null,"source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"column":"concentration_initiale"}},{"id":"94d6a42b24116666","parameter":"sulfure d'hydrogène","value":"0,0064","value_num":0.0064,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7783-06-4","place":["CA-QC"],"conditions":["receiving_water is freshwater","à l'effluent, sans dilution"],"cite":{"instrument":"ca_qc_criteres_eau","title":"Critères de qualité de l'eau de surface (MELCCFP) — vie aquatique : VAFe, CVAA et CVAC, eau douce et eau salée, toutes les fiches","issuer":"Ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP)","edition":"répertoire en ligne du MELCCFP, chaque fiche telle que servie le 2026-10-09 (each row names its fiche, its URL and its sha256)","source_url":"https://www.environnement.gouv.qc.ca/eau/criteres_eau/index.asp","source_sha256":"8808aa0b6ab877cc6c07ac7b3eed26ad6967cf19ea161430cd515d9c92e4bd75","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"fiche S0426 (sulfure d'hydrogène) — valeur aiguë finale à l'effluent (VAFe)","page":null,"quote":"0,0064 (MDEQ, 2008)"}},{"id":"6468a8cea9e53224","parameter":"sulfure d'hydrogène","value":"0,0032","value_num":0.0032,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7783-06-4","place":["CA-QC"],"conditions":["receiving_water is freshwater"],"cite":{"instrument":"ca_qc_criteres_eau","title":"Critères de qualité de l'eau de surface (MELCCFP) — vie aquatique : VAFe, CVAA et CVAC, eau douce et eau salée, toutes les fiches","issuer":"Ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP)","edition":"répertoire en ligne du MELCCFP, chaque fiche telle que servie le 2026-10-09 (each row names its fiche, its URL and its sha256)","source_url":"https://www.environnement.gouv.qc.ca/eau/criteres_eau/index.asp","source_sha256":"8808aa0b6ab877cc6c07ac7b3eed26ad6967cf19ea161430cd515d9c92e4bd75","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"fiche S0426 (sulfure d'hydrogène) — critère de vie aquatique aigu (CVAA)","page":null,"quote":"0,0032 (MDEQ, 2008)"}},{"id":"9f6bf597ba37aaf5","parameter":"sulfure d'hydrogène","value":"3,6 X 10 -4","value_num":0.00036,"unit":"mg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:7783-06-4","place":["CA-QC"],"conditions":["receiving_water is freshwater"],"cite":{"instrument":"ca_qc_criteres_eau","title":"Critères de qualité de l'eau de surface (MELCCFP) — vie aquatique : VAFe, CVAA et CVAC, eau douce et eau salée, toutes les fiches","issuer":"Ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP)","edition":"répertoire en ligne du MELCCFP, chaque fiche telle que servie le 2026-10-09 (each row names its fiche, its URL and its sha256)","source_url":"https://www.environnement.gouv.qc.ca/eau/criteres_eau/index.asp","source_sha256":"8808aa0b6ab877cc6c07ac7b3eed26ad6967cf19ea161430cd515d9c92e4bd75","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"fiche S0426 (sulfure d'hydrogène) — critère de vie aquatique chronique (CVAC)","page":null,"quote":"3,6 X 10 -4 (MDEQ, 2008)"}},{"id":"f9a33a2fb857a570","parameter":"Sulfure d’hydrogène (H2S)","value":"50","value_num":50,"unit":"µg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"name:sulfure d’hydrogene","place":["CA-QC"],"conditions":["Eau de consommation"],"cite":{"instrument":"ca_qc_eaux_souterraines","title":"Guide d'intervention — Annexe 7 : Grille des critères de qualité des eaux souterraines","issuer":"Ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP)","edition":"mai 2021","source_url":"https://environnement.gouv.qc.ca/sol/terrains/guide-intervention/annexe7.xlsx","source_sha256":"524eb58a8fbb45fb67a028b495f8c546614d9afe041986e4b4fe302ea6700761","fetched_at":"2026-09-03","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"II – Autres composés inorganiques","page":null,"quote":null,"column":"consommation"}},{"id":"e9626f30d52f490f","parameter":"Sulfure d’hydrogène (H2S)","value":"3.2","value_num":3.2,"unit":"µg/L","direction":"max","kind":"guideline","medium":"groundwater","level":"regional","parameter_key":"name:sulfure d’hydrogene","place":["CA-QC"],"conditions":["Résurgence dans l'eau de surface"],"cite":{"instrument":"ca_qc_eaux_souterraines","title":"Guide d'intervention — Annexe 7 : Grille des critères de qualité des eaux souterraines","issuer":"Ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP)","edition":"mai 2021","source_url":"https://environnement.gouv.qc.ca/sol/terrains/guide-intervention/annexe7.xlsx","source_sha256":"524eb58a8fbb45fb67a028b495f8c546614d9afe041986e4b4fe302ea6700761","fetched_at":"2026-09-03","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"II – Autres composés inorganiques","page":null,"quote":null,"column":"resurgence"}},{"id":"661bde38ae69d352","parameter":"Sulfide","value":"0.1","value_num":0.1,"unit":"lb per 1,000 barrels of crude oil (× the refinery's reference crude rate)","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7783-06-4","place":["CA"],"conditions":["cites is PRLER","route is direct"],"cite":{"instrument":"ca_prler","title":"Petroleum Refinery Liquid Effluent Regulations (C.R.C., c. 828) — Schedule I authorized deposits","issuer":"Government of Canada (Fisheries Act; Environment and Climate Change Canada)","edition":"Justice Laws Website, current to 2026-09-21","source_url":"https://laws-lois.justice.gc.ca/eng/regulations/C.R.C.,_c._828/FullText.html","source_sha256":"30e528bdc3a3546afb3defff4dae9b1dacb362e192680e127bd788d7f97c8ce8","fetched_at":"2026-10-08","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Schedule I, Column II: monthly amount (the month's mean of daily authorized deposits, s. 7)","page":null,"quote":"3 Sulfide 0.1 0.3 0.5"}},{"id":"ef089235b3642a46","parameter":"Sulfide","value":"0.3","value_num":0.3,"unit":"lb per 1,000 barrels of crude oil (× the refinery's reference crude rate)","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7783-06-4","place":["CA"],"conditions":["cites is PRLER","route is direct","the actual deposit may exceed it on no more than one day in each month (s. 5(1)(b))"],"cite":{"instrument":"ca_prler","title":"Petroleum Refinery Liquid Effluent Regulations (C.R.C., c. 828) — Schedule I authorized deposits","issuer":"Government of Canada (Fisheries Act; Environment and Climate Change Canada)","edition":"Justice Laws Website, current to 2026-09-21","source_url":"https://laws-lois.justice.gc.ca/eng/regulations/C.R.C.,_c._828/FullText.html","source_sha256":"30e528bdc3a3546afb3defff4dae9b1dacb362e192680e127bd788d7f97c8ce8","fetched_at":"2026-10-08","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Schedule I, Column III: one day amount — not exceeded on more than one day in a month (s. 8(1))","page":null,"quote":"3 Sulfide 0.1 0.3 0.5"}},{"id":"d466464baa68b45a","parameter":"Sulfide","value":"0.5","value_num":0.5,"unit":"lb per 1,000 barrels of crude oil (× the refinery's reference crude rate)","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7783-06-4","place":["CA"],"conditions":["cites is PRLER","route is direct"],"cite":{"instrument":"ca_prler","title":"Petroleum Refinery Liquid Effluent Regulations (C.R.C., c. 828) — Schedule I authorized deposits","issuer":"Government of Canada (Fisheries Act; Environment and Climate Change Canada)","edition":"Justice Laws Website, current to 2026-09-21","source_url":"https://laws-lois.justice.gc.ca/eng/regulations/C.R.C.,_c._828/FullText.html","source_sha256":"30e528bdc3a3546afb3defff4dae9b1dacb362e192680e127bd788d7f97c8ce8","fetched_at":"2026-10-08","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Schedule I, Column IV: maximum daily amount (s. 8(2))","page":null,"quote":"3 Sulfide 0.1 0.3 0.5"}},{"id":"d7412d811533f47d","parameter":"Hydrogen Sulphide","value":"≤ 0.05","value_num":0.05,"unit":"mg/L","direction":"max","kind":"objective","medium":"drinking_water","level":"national","parameter_key":"name:hydrogen sulphide","place":["CA"],"conditions":["drinking water (a guideline, not a regulation: each province and territory decides whether, and how, it binds there)"],"cite":{"instrument":"ca_hc_gcdwq","title":"Health Canada — Guidelines for Canadian Drinking Water Quality, Summary Tables 1-3 (microbiological, chemical and physical, radiological)","issuer":"Health Canada, with the Federal-Provincial-Territorial Committee on Drinking Water","edition":"page modified 2026-01-21 (dcterms.modified; issued 2014-10-22): Tables 1-3 as the browser pane rendered them on 2026-10-15","source_url":"https://www.canada.ca/en/health-canada/services/environmental-workplace-health/reports-publications/water-quality/guidelines-canadian-drinking-water-quality-summary-table.html","source_sha256":"9451ad8bfa566c0625ae4fcb362272cbb0e20040c548540f362488118c300b89","fetched_at":"2026-10-15","section":"Table 2, Chemical and Physical Parameters (Hydrogen Sulphide, published or reaffirmed 2025)","page":null,"quote":"I Hydrogen Sulphide (2025) (In: Operational parameters) None AO: ≤ 0.05"}}],"next":[{"tool":"check_values","says":"Has your user measured this? check_values sets each of their results beside every row held here, with a verdict and the row's cite.","arguments":{"place":"CA-QC"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"hydrogen sulfide\", value, unit}, ...], any other parameters too."},"post":"/api/v1/check"},{"tool":"read_certificate","says":"Has your user a laboratory certificate? read_certificate reads every row it prints, each with its page, and checks them against these limits.","arguments":{"place":"CA-QC"},"needs":{"content_base64":"The laboratory's certificate (PDF) or its XLSX, XLS or CSV export, as base64; or file_url, a public https address of it."},"post":"/api/v1/certificate"}]}