{"query":{"parameter":"sulfate","place":"CA-NS","medium":null,"statistic":null,"kind":null},"searched":{"places":["CA-NS","CA"],"parameter_keys":["cas:14808-79-8","cas:615-50-9","cas:68039-12-3","cas:342573-75-5","cas:24694-40-4","cas:7376-31-0","cas:56633-27-3","cas:60828-92-4","cas:2235-54-3","cas:6369-59-1","cas:39085-66-0","name:chloride + sulfate","cas:19834-02-7","cas:64-67-5","cas:43222-48-6","cas:77-78-1","cas:1031-07-8","cas:20261-61-4","cas:302-01-2","cas:10034-93-2","cas:68649-55-8","cas:32612-48-9","cas:68037-05-8","cas:68891-29-2","cas:27731-61-9","cas:31691-97-1","cas:68585-47-7","cas:55566-30-8","cas:18785-72-3","cas:7446-18-6","cas:72379-24-9","cas:72968-31-1"],"names_matched":[["sulfate","cas:14808-79-8"],["1 4 benzenediamine 2 methyl sulfate 1 1","cas:615-50-9"],["1 ethyl 2 8 heptadecenyl 4 5 dihydro 3 2 hydroxyethyl 1h imidazolium ethyl sulfate","cas:68039-12-3"],["1 ethyl 3 methylimidazolium ethyl sulfate","cas:342573-75-5"],["1h benzotriazole sulfate","cas:24694-40-4"],["1h benzotriazole sulfate 1 1","cas:24694-40-4"],["1h imidazolium 1 ethyl 2 8 heptadecenyl 4 5 dihydro 3 2 hydroxyethyl ethyl sulfate salt","cas:68039-12-3"],["2 2 2 nitrilotriethanol sulfate","cas:7376-31-0"],["2 aminoethanol sulfate","cas:56633-27-3"],["2 propanamine sulfate","cas:60828-92-4"],["ammonium lauryl sulfate","cas:2235-54-3"],["benzenediamine 2 methyl sulfate 1 4","cas:6369-59-1"],["butylamine sulfate","cas:39085-66-0"],["chloride sulfate","name:chloride + sulfate"],["cyclohexylammonium sulfate","cas:19834-02-7"],["diethyl sulfate","cas:64-67-5"],["difenzoquat methyl sulfate","cas:43222-48-6"],["dimethyl sulfate","cas:77-78-1"],["endosulfan sulfate","cas:1031-07-8"],["ethanol 2 2 2 nitrilotris sulfate 2 1 salt","cas:20261-61-4"],["ethanol 2 2 2 nitrilotris sulfate salt","cas:7376-31-0"],["ethanol 2 amino sulfate salt","cas:56633-27-3"],["hydrazine hydrazine sulfate","cas:302-01-2"],["hydrazine sulfate","cas:10034-93-2"],["hydrazine sulfate 1 1","cas:10034-93-2"],["isopropylamine sulfate","cas:60828-92-4"],["methylbenzene 1 4 diamine sulfate 2","cas:615-50-9"],["polyethylene glycol branched nonylphenyl ether sulfate ammonium salt","cas:68649-55-8"],["polyethylene glycol lauryl ether sulfate ammonium salt","cas:32612-48-9"],["polyethylene glycol mono c6 10 alkyl ether sulfate ammonium salt","cas:68037-05-8"],["polyethylene glycol mono c8 10 alkyl ether sulfate ammonium salt","cas:68891-29-2"],["polyethylene glycol myristyl ether sulfate ammonium salt","cas:27731-61-9"],["sel d ammonium du copolymere d ethylene glycol et du sulfate de nonyl 4 benzene","cas:31691-97-1"],["sel sodique du sulfate de monoalkyle c10 c16","cas:68585-47-7"],["sulfate de diethyle","cas:64-67-5"],["sulfate de dimethyle","cas:77-78-1"],["sulfate de laureth 5 et d ammonium","cas:32612-48-9"],["sulfate de tetrakis hydroxymethyl phosphonium 1 2","cas:55566-30-8"],["sulfate total as so4","cas:18785-72-3"],["tetrakis hydroxymethyl phosphonium sulfate","cas:55566-30-8"],["thallium i sulfate","cas:7446-18-6"],["thallium l sulfate","cas:7446-18-6"],["thallium sulfate","cas:7446-18-6"],["toluene 2 5 diamine sulfate","cas:6369-59-1"],["triethanolamine sulfate","cas:20261-61-4"],["alcohols c8 10 ethoxylated sulfates ammonium salts","cas:68891-29-2","sulfates"],["amines c12 14 tert alkyl ethoxylated sulfates sodium salts","cas:72379-24-9","sulfates"],["amines tallow alkyl ethoxylated sulfates","cas:72968-31-1","sulfates"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":2,"offset":0,"returned":2,"next_offset":null,"rows":[{"id":"cf90d1bd16a707cf","parameter":"Sulphate","value":"128,000","value_num":128000,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"cas:14808-79-8","place":["CA-NS"],"conditions":["receiving_water is freshwater","a site's surface water, or groundwater within 10 m of a surface water body, assessed under the Contaminated Sites Regulations (Tier I: the generic standard; a Tier II pathway-specific standard or a site-specific risk assessment may replace it)"],"cite":{"instrument":"ca_ns_tier1_eqs_surface_water","title":"Nova Scotia Tier I Environmental Quality Standards (EQS) for Surface Water and Groundwater Discharging to Surface Water — Table 3, surface water columns","issuer":"Nova Scotia Environment and Climate Change (Contaminated Sites Regulations, Tier I EQS)","edition":"Revision September 30, 2021 (linked from the Contaminated Sites protocols page, fetched 2026-10-09)","source_url":"https://novascotia.ca/nse/contaminatedsites/docs/Table_3_-_Nova_Scotia_Tier_I_Environmental_Quality_Standards_EQS_for_Surface_Water_and_Groundwater_Discharging_to_Surface_Water.pdf","source_sha256":"cff66750079c1998ad86f5ad70089705f7824849c0b5a016eb5253447301a875","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 3, surface water, fresh water","page":2,"quote":null}},{"id":"9531f7b4f2b8dbce","parameter":"Sulphate","value":"≤ 500","value_num":500,"unit":"mg/L","direction":"max","kind":"objective","medium":"drinking_water","level":"national","parameter_key":"cas:14808-79-8","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 (Sulphate, published or reaffirmed 2025)","page":null,"quote":"I Sulphate (2025) (In: Operational parameters) None AO: ≤ 500"}}],"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-NS"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"sulfate\", 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-NS"},"needs":{"content_base64":"The laboratory's certificate (PDF) or its XLSX, XLS or CSV export, as base64; 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