{"query":{"parameter":"lead","place":"CA-AB","medium":null,"statistic":null,"kind":null},"searched":{"places":["CA-AB","CA"],"parameter_keys":["cas:7439-92-1","cas:301-04-2","name:arsenic, cadmium (h), copper (h), lead (h), mercury, zinc","name:arsenic, cadmium (h), copper (h), lead (h), zinc","name:cadmium (h), copper (h), mercury, lead (h), zinc","cas:1335-32-6","cas:7446-27-7","name:lead - total","name:lead, total","name:lead, total recoverable","cas:78-00-2","cas:75-74-1","name:total lead","cas:1067-14-7","name:plomb-210","name:plomb extractible"],"names_matched":[["lead","cas:7439-92-1"],["acetic acid lead 2 salt","cas:301-04-2"],["arsenic cadmium h copper h lead h mercury zinc","name:arsenic, cadmium (h), copper (h), lead (h), mercury, zinc"],["arsenic cadmium h copper h lead h mercury zinc h","name:arsenic, cadmium (h), copper (h), lead (h), mercury, zinc"],["arsenic cadmium h copper h lead h zinc","name:arsenic, cadmium (h), copper (h), lead (h), zinc"],["arsenic cadmium h copper h lead h zinc h","name:arsenic, cadmium (h), copper (h), lead (h), zinc"],["cadmium h copper h mercury lead h zinc","name:cadmium (h), copper (h), mercury, lead (h), zinc"],["cadmium h copper h mercury lead h zinc h","name:cadmium (h), copper (h), mercury, lead (h), zinc"],["lead acetate","cas:1335-32-6"],["lead acetate","cas:301-04-2"],["lead ii acetate","cas:301-04-2"],["lead ii phosphate","cas:7446-27-7"],["lead phosphate","cas:7446-27-7"],["lead subacetate","cas:1335-32-6"],["lead total","name:lead - total"],["lead total","name:lead, total"],["lead total recoverable","name:lead, total recoverable"],["tetraethyl lead","cas:78-00-2"],["tetramethyl lead","cas:75-74-1"],["total lead","name:total lead"],["total lead freshwater","name:total lead"],["total lead marine","name:total lead"],["triethyl lead","cas:1067-14-7"],["plomb 210","name:plomb-210","plomb"],["plomb extractible","name:plomb extractible","plomb"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":12,"offset":0,"returned":12,"next_offset":null,"rows":[{"id":"7aa2cb1b473b0fb8","parameter":"Lead - total","value":"Equation","unit":"µg/L","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:lead - total","place":["CA-AB"],"conditions":["receiving_water is freshwater","a value given as an equation, a narrative or a table (Tables 1.1-1.7), carried as printed and never evaluated"],"cite":{"instrument":"ca_ab_eqg_surface_waters","title":"Environmental Quality Guidelines for Alberta Surface Waters (March 28, 2018) — Table 1, protection of freshwater aquatic life, long-term (chronic) and short-term (acute)","issuer":"Government of Alberta, Alberta Environment and Parks","edition":"March 28, 2018 (Alberta Environment and Parks)","source_url":"https://open.alberta.ca/dataset/5298aadb-f5cc-4160-8620-ad139bb985d8/resource/38ed9bb1-233f-4e28-b344-808670b20dae/download/environmentalqualitysurfacewaters-mar28-2018.pdf","source_sha256":"8d128a9d2efe359b62626cb0055d2ab7026328ef88a8afa3b5ed197c0b788d54","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 1 (freshwater aquatic life) · Metal · CCME 1987","page":33,"quote":null}},{"id":"978e8b1a819f9dfa","parameter":"Lead","value":"Table","unit":"mg/kg","kind":"guideline","medium":"soil","level":"national","variants":[{"label":"PSoQG_F, 0.5-IQ pt decrement","printed":"61","num":61,"condition":"CCME recommends using the PSoQGHH for a 0.5-IQ point decrement when soil and additional site-related media contain elevated concentrations of lead (e.g., groundwater, food grown on site, etc.) to account for additional sources of elevated exposure and/or according to jurisdictional policy."},{"label":"PSoQG_F, 1-IQ pt decrement","printed":"70","num":70,"condition":"CCME recommends using the PSoQGHH for a 1-IQ point decrement when soil is the only site-related media with elevated concentrations of lead. Where additional site-related contaminated media are expected to contribute to exposures (e.g., groundwater, food grown on site, etc.), CCME recommends using the 0.5-IQ point decrement to account for additional sources of elevated exposure. When using the PSoQGHH based on 1-IQ point decrement, the environmental site investigation report should include information on all media that may be affected above background and fate and transport information."}],"parameter_key":"cas:7439-92-1","place":["CA"],"conditions":["Concentration (mg/kg dry weight) Agricultural"],"cite":{"instrument":"ca_ccme_soil","title":"CCME — Soil Quality Guidelines for the Protection of Environmental and Human Health (Summary Table, as served 2026-09-24)","issuer":"Canadian Council of Ministers of the Environment (CCME)","edition":"Summary Table","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,"note":"agricole: the summary table prints 'Table'; https://ccme.ca/en/chemical/124 prints 2 guideline(s) for this land use, each carried with its condition, none chosen | residentiel_parc: the summary table prints 'Table'; https://ccme.ca/en/chemical/124 prints 2 guideline(s) for this land use, each carried with its condition, none chosen | commercial: the summary table prints 'Table'; https://ccme.ca/en/chemical/124 prints 2 guideline(s) for this land use, each carried with its condition, none chosen | industriel: the summary table prints 'Table'; https://ccme.ca/en/chemical/124 prints 2 guideline(s) for this land use, each carried with its condition, none chosen","table":"sols","column":"agricole"}},{"id":"1b25325bb42339cf","parameter":"Lead","value":"Table","unit":"mg/kg","kind":"guideline","medium":"soil","level":"national","variants":[{"label":"PSoQG_F, 0.5-IQ pt decrement","printed":"61","num":61,"condition":"CCME recommends using the PSoQGHH for a 0.5-IQ point decrement when soil and additional site-related media contain elevated concentrations of lead (e.g., groundwater, food grown on site, etc.) to account for additional sources of elevated exposure and/or according to jurisdictional policy."},{"label":"PSoQG_F, 1-IQ pt decrement","printed":"113","num":113,"condition":"CCME recommends using the PSoQGHH for a 1-IQ point decrement when soil is the only site-related media with elevated concentrations of lead. Where additional site-related contaminated media are expected to contribute to exposures (e.g., groundwater, food grown on site, etc.), CCME recommends using the 0.5-IQ point decrement to account for additional sources of elevated exposure. When using the PSoQGHH based on 1-IQ point decrement, the environmental site investigation report should include information on all media that may be affected above background and fate and transport information."}],"parameter_key":"cas:7439-92-1","place":["CA"],"conditions":["Concentration (mg/kg dry weight) Residential/ parkland"],"cite":{"instrument":"ca_ccme_soil","title":"CCME — Soil Quality Guidelines for the Protection of Environmental and Human Health (Summary Table, as served 2026-09-24)","issuer":"Canadian Council of Ministers of the Environment (CCME)","edition":"Summary Table","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,"note":"agricole: the summary table prints 'Table'; https://ccme.ca/en/chemical/124 prints 2 guideline(s) for this land use, each carried with its condition, none chosen | residentiel_parc: the summary table prints 'Table'; https://ccme.ca/en/chemical/124 prints 2 guideline(s) for this land use, each carried with its condition, none chosen | commercial: the summary table prints 'Table'; https://ccme.ca/en/chemical/124 prints 2 guideline(s) for this land use, each carried with its condition, none chosen | industriel: the summary table prints 'Table'; https://ccme.ca/en/chemical/124 prints 2 guideline(s) for this land use, each carried with its condition, none chosen","table":"sols","column":"residentiel_parc"}},{"id":"59256cf58313939e","parameter":"Lead","value":"Table","unit":"mg/kg","kind":"guideline","medium":"soil","level":"national","variants":[{"label":"PSoQG_F, 0.5-IQ pt decrement","printed":"82","num":82,"condition":"CCME recommends using the PSoQGHH for a 0.5-IQ point decrement when soil and additional site-related media contain elevated concentrations of lead (e.g., groundwater, food grown on site, etc.) to account for additional sources of elevated exposure and/or according to jurisdictional policy."},{"label":"PSoQG_F, 1-IQ pt decrement","printed":"154","num":154,"condition":"CCME recommends using the PSoQGHH for a 1-IQ point decrement when soil is the only site-related media with elevated concentrations of lead. Where additional site-related contaminated media are expected to contribute to exposures (e.g., groundwater, food grown on site, etc.), CCME recommends using the 0.5-IQ point decrement to account for additional sources of elevated exposure. When using the PSoQGHH based on 1-IQ point decrement, the environmental site investigation report should include information on all media that may be affected above background and fate and transport information."}],"parameter_key":"cas:7439-92-1","place":["CA"],"conditions":["Concentration (mg/kg dry weight) Commercial"],"cite":{"instrument":"ca_ccme_soil","title":"CCME — Soil Quality Guidelines for the Protection of Environmental and Human Health (Summary Table, as served 2026-09-24)","issuer":"Canadian Council of Ministers of the Environment (CCME)","edition":"Summary Table","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,"note":"agricole: the summary table prints 'Table'; https://ccme.ca/en/chemical/124 prints 2 guideline(s) for this land use, each carried with its condition, none chosen | residentiel_parc: the summary table prints 'Table'; https://ccme.ca/en/chemical/124 prints 2 guideline(s) for this land use, each carried with its condition, none chosen | commercial: the summary table prints 'Table'; https://ccme.ca/en/chemical/124 prints 2 guideline(s) for this land use, each carried with its condition, none chosen | industriel: the summary table prints 'Table'; https://ccme.ca/en/chemical/124 prints 2 guideline(s) for this land use, each carried with its condition, none chosen","table":"sols","column":"commercial"}},{"id":"6e4b2171ad7cd7df","parameter":"Lead","value":"Table","unit":"mg/kg","kind":"guideline","medium":"soil","level":"national","variants":[{"label":"PSoQG_F, 0.5-IQ pt decrement","printed":"600","num":600,"condition":"CCME recommends using the PSoQGHH for a 0.5-IQ point decrement when soil and additional site-related media contain elevated concentrations of lead (e.g., groundwater, food grown on site, etc.) to account for additional sources of elevated exposure and/or according to jurisdictional policy."},{"label":"PSoQG_F, 1-IQ pt decrement","printed":"600","num":600,"condition":"CCME recommends using the PSoQGHH for a 1-IQ point decrement when soil is the only site-related media with elevated concentrations of lead. Where additional site-related contaminated media are expected to contribute to exposures (e.g., groundwater, food grown on site, etc.), CCME recommends using the 0.5-IQ point decrement to account for additional sources of elevated exposure. When using the PSoQGHH based on 1-IQ point decrement, the environmental site investigation report should include information on all media that may be affected above background and fate and transport information."}],"parameter_key":"cas:7439-92-1","place":["CA"],"conditions":["Concentration (mg/kg dry weight) Industrial"],"cite":{"instrument":"ca_ccme_soil","title":"CCME — Soil Quality Guidelines for the Protection of Environmental and Human Health (Summary Table, as served 2026-09-24)","issuer":"Canadian Council of Ministers of the Environment (CCME)","edition":"Summary Table","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,"note":"agricole: the summary table prints 'Table'; https://ccme.ca/en/chemical/124 prints 2 guideline(s) for this land use, each carried with its condition, none chosen | residentiel_parc: the summary table prints 'Table'; https://ccme.ca/en/chemical/124 prints 2 guideline(s) for this land use, each carried with its condition, none chosen | commercial: the summary table prints 'Table'; https://ccme.ca/en/chemical/124 prints 2 guideline(s) for this land use, each carried with its condition, none chosen | industriel: the summary table prints 'Table'; https://ccme.ca/en/chemical/124 prints 2 guideline(s) for this land use, each carried with its condition, none chosen","table":"sols","column":"industriel"}},{"id":"5be32557684b14c7","parameter":"Lead","value":"CWQG (µg/L)= e^{1.273[ln(hardness)]-4.705}","unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:7439-92-1","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,"note":"douce_long_terme: the summary table prints 'Equation'; the expression is printed on https://ccme.ca/en/chemical/124: The CWQG for lead is related to water hardness (as CaCO3): / When the hardness is 0 to ≤ 60 mg/L, the CWQG is 1 µg/L / At hardness >60 to ≤ 180 mg/L the CWQG is calculated using this equation (see calculator below) / CWQG (µg/L)= e^{1.273[ln(hardness)]-4.705} / At hardness >180 mg/L, the CWQG is 7 µg/L / If the hardness is unknown, the CWQG is 1 µg/L / The online calculator (below) will return the correct value over the entire range of hardness.","table":"eau_vie_aquatique","column":"douce_long_terme"}},{"id":"8ad52fb31b6378e2","parameter":"Lead","value":"0.08 mg/L","value_num":0.08,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-92-1","place":["CA"],"conditions":["cites is MDMER","route is direct","a metal mine (or, since June 1, 2018, a diamond mine) whose final discharge points deposit more than 50 m3 of effluent per day (s. 2(1))","a mine to which the Regulations apply for the first time on or after June 1, 2021, or a recognized closed mine that returns to commercial operation on or after that day (s. 4(1)(a)(i))"],"cite":{"instrument":"ca_mdmer","title":"Metal and Diamond Mining Effluent Regulations (SOR/2002-222) — Schedule 4, maximum authorized concentrations","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/SOR-2002-222/FullText.html","source_sha256":"2c6e0151d3776378f73df4868ca98052882ee81faf9738bbeba6f5d544b648fe","fetched_at":"2026-10-08","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Schedule 4, Table 1 — Column 2: maximum authorized monthly mean concentration","page":null,"quote":"4 Lead 0.08 mg/L 0.12 mg/L 0.16 mg/L"}},{"id":"0d6f683f5ba1b82b","parameter":"Lead","value":"0.12 mg/L","value_num":0.12,"unit":"mg/L","statistic":"composite","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-92-1","place":["CA"],"conditions":["cites is MDMER","route is direct","a metal mine (or, since June 1, 2018, a diamond mine) whose final discharge points deposit more than 50 m3 of effluent per day (s. 2(1))","a mine to which the Regulations apply for the first time on or after June 1, 2021, or a recognized closed mine that returns to commercial operation on or after that day (s. 4(1)(a)(i))"],"cite":{"instrument":"ca_mdmer","title":"Metal and Diamond Mining Effluent Regulations (SOR/2002-222) — Schedule 4, maximum authorized concentrations","issuer":"Government of Canada (Fisheries Act; 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Environment and Climate Change Canada)","edition":"Justice Laws Website, current to 2026-09-21","source_url":"https://laws-lois.justice.gc.ca/eng/regulations/SOR-2002-222/FullText.html","source_sha256":"2c6e0151d3776378f73df4868ca98052882ee81faf9738bbeba6f5d544b648fe","fetched_at":"2026-10-08","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Schedule 4, Table 1 — Column 4: maximum authorized concentration in a grab sample","page":null,"quote":"4 Lead 0.08 mg/L 0.12 mg/L 0.16 mg/L"}},{"id":"dffa645191295c1f","parameter":"Lead","value":"0.10 mg/L","value_num":0.1,"unit":"mg/L","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7439-92-1","place":["CA"],"conditions":["cites is MDMER","route is direct","a metal mine (or, since June 1, 2018, a diamond mine) whose final discharge points deposit more than 50 m3 of effluent per day (s. 2(1))","any other mine (s. 4(1)(a)(ii))"],"cite":{"instrument":"ca_mdmer","title":"Metal and Diamond Mining Effluent Regulations (SOR/2002-222) — Schedule 4, maximum authorized concentrations","issuer":"Government of Canada (Fisheries Act; 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