{"query":{"parameter":"dissolved oxygen","place":"CA-MB","medium":null,"statistic":null,"kind":null},"searched":{"places":["CA-MB","CA"],"parameter_keys":["cas:7782-44-7","name:dissolved oxygen","name:diel dissolved oxygen flux","name:minimum dissolved oxygen","name:chemical oxygen demand, arsenic, radium (dissolved and total, uranium, zinc","name:oxygen - dissolved","name:oxygen, dissolved"],"names_matched":[["dissolved oxygen","cas:7782-44-7"],["dissolved oxygen","name:dissolved oxygen"],["diel dissolved oxygen flux","name:diel dissolved oxygen flux"],["minimum dissolved oxygen","name:minimum dissolved oxygen"],["chemical oxygen demand arsenic radium dissolved and total uranium zinc","name:chemical oxygen demand, arsenic, radium (dissolved and total, uranium, zinc","oxygen dissolved"],["chemical oxygen demand arsenic radium dissolved and total uranium zinc h","name:chemical oxygen demand, arsenic, radium (dissolved and total, uranium, zinc","oxygen dissolved"],["oxygen dissolved","name:oxygen - dissolved","oxygen dissolved"],["oxygen dissolved","name:oxygen, dissolved","oxygen dissolved"],["oxygen dissolved intergravel","name:oxygen, dissolved","oxygen dissolved"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order; rows for a marine receiving water after the rest, as none of the place's own rows names a marine, salt, estuarine, coastal or ocean water"},"total":4,"offset":0,"returned":4,"next_offset":null,"rows":[{"id":"fd7b1b8bb7684df6","parameter":"Dissolved Oxygen","value":"5.5 and 6.0 and 4.0 and 5.0 and 3.0","unit":"mg/L","direction":"max","kind":"objective","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["CA-MB"],"conditions":["water use as printed: Surface Water: Cool Water Aquatic Life and Wildlife","applicable period as printed: Mature Life Stages(f) (e.g., Water Temperature ≤5°C) Early Life Stages(g) (e.g., Water Temperature >5°C) Mature Life Stages (e.g., Water Temperature ≤5°C) Early Life Stages (e.g., Water Temperature >5°C) Mature Life Stages (e.g., Water Temperature ≤5°C)","an equation (hardness, pH or temperature) or a set of values, carried as printed and never evaluated"],"cite":{"instrument":"ca_mb_wqsog_2011","title":"Manitoba Water Quality Standards, Objectives, and Guidelines (Water Stewardship Report 2011-01) — Tier I effluent standards and Tier II objectives for aquatic life","issuer":"Government of Manitoba, Manitoba Water Stewardship","edition":"Manitoba Water Stewardship Report 2011-01, November 28, 2011; adopted by the Manitoba Water Quality Standards, Objectives and Guidelines Regulation 196/2011 (The Water Protection Act), held as mb_reg_196_2011.pdf","source_url":"https://manitoba.ca/sd/pubs/water/lakes-beaches-rivers/mb_water_quality_standard_final.pdf","source_sha256":"748289e9152dd73829988f0f32aad04544be6ac05d6ce9b26ed26decef670e7e","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Tier II - Water Quality Objectives: Dissolved Oxygen · Surface Water: Cool Water Aquatic Life and Wildlife","page":26,"quote":null}},{"id":"cd68fbacfdb92f81","parameter":"Dissolved Oxygen","value":"6.5 and 9.5 (to achieve 6.5 in intergravel) and 5.0 and 8.0 (to achieve 5.0 in intergravel) and 4.0","unit":"mg/L","direction":"max","kind":"objective","medium":"surface_water","level":"regional","parameter_key":"name:dissolved oxygen","place":["CA-MB"],"conditions":["water use as printed: Surface Water: Cold Water Aquatic Life and Wildlife","applicable period as printed: Mature Life Stages (e.g., Water Temperature >5°C) Early Life Stages (e.g., Water Temperature ≤5°C) Mature Life Stages (e.g., Water Temperature >5°C) Early Life Stages (e.g., Water Temperature ≤5°C) Mature Life Stages (e.g., Water Temperature >5°C)","an equation (hardness, pH or temperature) or a set of values, carried as printed and never evaluated"],"cite":{"instrument":"ca_mb_wqsog_2011","title":"Manitoba Water Quality Standards, Objectives, and Guidelines (Water Stewardship Report 2011-01) — Tier I effluent standards and Tier II objectives for aquatic life","issuer":"Government of Manitoba, Manitoba Water Stewardship","edition":"Manitoba Water Stewardship Report 2011-01, November 28, 2011; adopted by the Manitoba Water Quality Standards, Objectives and Guidelines Regulation 196/2011 (The Water Protection Act), held as mb_reg_196_2011.pdf","source_url":"https://manitoba.ca/sd/pubs/water/lakes-beaches-rivers/mb_water_quality_standard_final.pdf","source_sha256":"748289e9152dd73829988f0f32aad04544be6ac05d6ce9b26ed26decef670e7e","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Tier II - Water Quality Objectives: Dissolved Oxygen · Surface Water: Cold Water Aquatic Life and Wildlife","page":27,"quote":null}},{"id":"30a929176f5ed9d8","parameter":"Dissolved oxygen","value":"Variable","unit":"µg/L","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"name:dissolved oxygen","place":["CA"],"conditions":["receiving_water is freshwater","long-term exposure: CCME's long-term guideline"],"cite":{"instrument":"ca_ccme_wqg_aquatic","title":"CCME Canadian Water Quality Guidelines for the Protection of Aquatic Life — freshwater and marine, short and long term","issuer":"Canadian Council of Ministers of the Environment (CCME)","edition":"Summary Table (as served 2026-09-24; each guideline carries its own year)","source_url":"https://ccme.ca/en/results/176,177,178,1,2,287,3,4,5,6,7,179,8,174,9,10,12,180,14,181,182,183,15,16,17,300,19,20,21,289,242,23,24,295,27,28,194,288,59,60,61,63,62,184,65,66,67,69,70,71,72,73,74,80,81,216,291,30,31,32,41,47,42,48,113,114,169,171,170,185,110,83,77,78,283,79,109,104,52,53,290,85,76,86,100,87,88,89,234,91,154,93,94,96,99,186,187,97,102,112,292,40,119,125,293,121,188,122,123,124,126,127,129,131,239,233,189,135,130,133,136,137,138,107,29,297,103,51,235,190,139,140,141,143,144,146,147,148,39,58,284,161,302,303,162,191,294,163,164,165,167,168,172,173,175,101,192,193,196,197,198,199,201,217,202,203,204,207,218,208,209,115,36,37,38,45,299,106,56,57,211,212,213,214,215,221,222,108,151,236,33,34,35,43,44,298,55,105,54,152,223,153,219,225,226,296,229/ch/1,2,3,4/csv","source_sha256":"f484a5f2a2dfcb5a4257763c853fc8dc810788cec54c75355b30ec194e2f7499","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"table":"eau_vie_aquatique","column":"douce_long_terme"}},{"id":"b30a87c1c7fdca6a","parameter":"Dissolved oxygen","value":">8000 & Narrative","unit":"µg/L","direction":"min","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"name:dissolved oxygen","place":["CA"],"conditions":["receiving_water is marine","long-term exposure: CCME's long-term guideline"],"cite":{"instrument":"ca_ccme_wqg_aquatic","title":"CCME Canadian Water Quality Guidelines for the Protection of Aquatic Life — freshwater and marine, short and long term","issuer":"Canadian Council of Ministers of the Environment (CCME)","edition":"Summary Table (as served 2026-09-24; each guideline carries its own year)","source_url":"https://ccme.ca/en/results/176,177,178,1,2,287,3,4,5,6,7,179,8,174,9,10,12,180,14,181,182,183,15,16,17,300,19,20,21,289,242,23,24,295,27,28,194,288,59,60,61,63,62,184,65,66,67,69,70,71,72,73,74,80,81,216,291,30,31,32,41,47,42,48,113,114,169,171,170,185,110,83,77,78,283,79,109,104,52,53,290,85,76,86,100,87,88,89,234,91,154,93,94,96,99,186,187,97,102,112,292,40,119,125,293,121,188,122,123,124,126,127,129,131,239,233,189,135,130,133,136,137,138,107,29,297,103,51,235,190,139,140,141,143,144,146,147,148,39,58,284,161,302,303,162,191,294,163,164,165,167,168,172,173,175,101,192,193,196,197,198,199,201,217,202,203,204,207,218,208,209,115,36,37,38,45,299,106,56,57,211,212,213,214,215,221,222,108,151,236,33,34,35,43,44,298,55,105,54,152,223,153,219,225,226,296,229/ch/1,2,3,4/csv","source_sha256":"f484a5f2a2dfcb5a4257763c853fc8dc810788cec54c75355b30ec194e2f7499","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"table":"eau_vie_aquatique","column":"marine_long_terme"}}],"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-MB"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"dissolved oxygen\", 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-MB"},"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"}]}