{"query":{"parameter":"hydrogen sulfide","place":"CA-BC","medium":null,"statistic":null,"kind":null},"searched":{"places":["CA-BC","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"},"total":6,"offset":0,"returned":6,"next_offset":null,"rows":[{"id":"4d59b4f6ab7fb036","parameter":"sulfide, un-ionized (as H2S)","value":"20","value_num":20,"unit":"µg/L","direction":"max","kind":"limit","medium":"groundwater","level":"regional","parameter_key":"cas:7783-06-4","place":["CA-BC"],"conditions":["a site whose water the Contaminated Sites Regulation governs; the standard is met in the site's groundwater or surface water, a minimum 1:10 dilution assumed before discharge to the aquatic receiving environment (Schedule 3.2 note 2(a))","receiving_water in freshwater, marine"],"cite":{"instrument":"ca_bc_csr_water","title":"B.C. Reg. 375/96 Contaminated Sites Regulation — Schedule 3.2 generic numerical water standards, aquatic life (freshwater and marine)","issuer":"Government of British Columbia (Environmental Management Act)","edition":"This consolidation is current to September 15, 2026.","source_url":"https://www.bclaws.gov.bc.ca/civix/document/id/complete/statreg/375_96_00","source_sha256":"f69b12b38ce71f5bad4842242a2390be2eeeef94ac7fcc116d57c4e34d6ffc21","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":20,"quote":null,"table":"schedule_3_2","column":"AW"}},{"id":"08faf700f2017eef","parameter":"sulfide, un-ionized (as H2S)","value":"50","value_num":50,"unit":"µg/L","direction":"max","kind":"limit","medium":"groundwater","level":"regional","parameter_key":"cas:7783-06-4","place":["CA-BC"],"conditions":["Drinking Water (DW)","note 3: Samples obtained from the point of consumption are unfiltered. Heavy metals, metalloids and inorganic ions are expressed as total substance concentrations unless otherwise indicated."],"cite":{"instrument":"ca_bc_csr_water_uses","title":"B.C. Reg. 375/96 Contaminated Sites Regulation — Schedule 3.2 generic numerical water standards, drinking water, irrigation and livestock","issuer":"Government of British Columbia (Environmental Management Act)","edition":"This consolidation is current to September 15, 2026.","source_url":"https://www.bclaws.gov.bc.ca/civix/document/id/complete/statreg/375_96_00","source_sha256":"f69b12b38ce71f5bad4842242a2390be2eeeef94ac7fcc116d57c4e34d6ffc21","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":20,"quote":null,"table":"schedule_3_2","column":"DW"}},{"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","source_status":{"checked":"2026-10-15","status":"not verified"},"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-BC"},"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-BC"},"needs":{"content_base64":"The laboratory's certificate (PDF) or its XLSX, XLS or CSV export, as base64; 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