{"query":{"parameter":"nitrite n","place":"CA-AB","medium":null,"statistic":null,"kind":null},"searched":{"places":["CA-AB","CA"],"parameter_keys":["name:nitrite - n","name:nitrite-n","name:nitrate and nitrite","name:nitrate-n + nitrite-n","name:nitrate + nitrite","name:nitrate + nitrite as n","name:nitrate+nitrite","name:nitrate/nitrite","name:nitrate/nitrite as n","name:nitrate plus nitrite","cas:14797-65-0","name:nitrite as n","name:nitrite + nitrate","name:nitrite+nitrate"],"names_matched":[["nitrite n","name:nitrite - n"],["nitrite n","name:nitrite-n"],["nitrate and nitrite as n","name:nitrate and nitrite"],["nitrate n nitrite n","name:nitrate-n + nitrite-n"],["nitrate nitrite as n","name:nitrate + nitrite"],["nitrate nitrite as n","name:nitrate + nitrite as n"],["nitrate nitrite as n","name:nitrate+nitrite"],["nitrate nitrite as n","name:nitrate/nitrite"],["nitrate nitrite as n","name:nitrate/nitrite as n"],["nitrate plus nitrite as nitrogen n","name:nitrate plus nitrite"],["nitrite as n","cas:14797-65-0"],["nitrite as n","name:nitrite as n"],["nitrite as nitrite n","cas:14797-65-0"],["nitrite as nitrogen n","cas:14797-65-0"],["nitrite expressed as n","cas:14797-65-0"],["nitrite n no2","cas:14797-65-0"],["nitrite nitrate as n","name:nitrite + nitrate"],["nitrite nitrate as n","name:nitrite+nitrate"],["nitrite nitrate both as n","name:nitrite + nitrate"],["nitrite nitrate both as n","name:nitrite+nitrate"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":13,"names":["Nitrite (as nitrogen)","Nitrate + nitrite (as nitrogen)","Nitrite","Nitrite (as nitrite)","Nitrite (as nitrite-nitrogen)"],"says":"13 rows share a parameter key with a longer name holding \"nitrite n\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"nitrite n\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":2,"offset":0,"returned":2,"next_offset":null,"rows":[{"id":"747959a941ea3358","parameter":"Nitrite - N","value":"Varies","unit":"mg/L","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:nitrite - n","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) · Nutrient; ions & general · BC 2001","page":34,"quote":null}},{"id":"eab9f13f3021ddb4","parameter":"Nitrite - N","value":"Varies","unit":"mg/L","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:nitrite - n","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) · Nutrient; ions & general · BC 2001","page":34,"quote":null}}],"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-AB"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"nitrite n\", 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-AB"},"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"}]}