{"query":{"parameter":"butyric acid","place":"CA-QC","medium":null,"statistic":null,"kind":null},"searched":{"places":["CA-QC","CA"],"parameter_keys":["cas:107-92-6","cas:94-82-6","cas:94-81-5","name:db, 2,4- (2,4-db: 4-(2,4- dichlorophenoxy) butyric acid)","cas:79-31-2"],"names_matched":[["butyric acid","cas:107-92-6"],["4 2 4 dichlorophenoxy butyric acid","cas:94-82-6"],["4 2 methyl 4 chlorophenoxy butyric acid","cas:94-81-5"],["db 2 4 2 4 db 4 2 4 dichlorophenoxy butyric acid","name:db, 2,4- (2,4-db: 4-(2,4- dichlorophenoxy) butyric acid)"],["dichlorophenoxy 2 4 butyric acid 4 2 4 db","cas:94-82-6"],["dichlorophenoxy butyric acid 2 4","cas:94-82-6"],["dichlorophenoxy butyric acid 2 4 2 4 db","cas:94-82-6"],["iso butyric acid","cas:79-31-2"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":7,"names":["DB, 2,4-","MCPB","Acide isobutyrique"],"says":"7 rows share a parameter key with a longer name holding \"butyric acid\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"butyric acid\" 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":"5e665fc4413e802b","parameter":"Butyrique, acide","value":"1","value_num":1,"unit":"µg/m³","statistic":"four_minute_avg","direction":"max","kind":"guideline","medium":"ambient_air","level":"regional","parameter_key":"cas:107-92-6","place":["CA-QC"],"conditions":[],"cite":{"instrument":"ca_qc_air","title":"MELCCFP — Normes et critères québécois de qualité de l'atmosphère (version 11)","issuer":null,"edition":"Version 11","source_url":"https://environnement.gouv.qc.ca/air/criteres/normes-criteres-qualite-atmosphere.xlsx","source_sha256":null,"fetched_at":null,"source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"column":"valeur"}},{"id":"9fac7c68f923a30e","parameter":"Butyrique, acide","value":"0","value_num":0,"unit":"µg/m³","statistic":"four_minute_avg","direction":"max","kind":"printed_reference","medium":"ambient_air","level":"regional","parameter_key":"cas:107-92-6","place":["CA-QC"],"conditions":[],"cite":{"instrument":"ca_qc_air","title":"MELCCFP — Normes et critères québécois de qualité de l'atmosphère (version 11)","issuer":null,"edition":"Version 11","source_url":"https://environnement.gouv.qc.ca/air/criteres/normes-criteres-qualite-atmosphere.xlsx","source_sha256":null,"fetched_at":null,"source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"column":"concentration_initiale"}}],"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-QC"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"butyric acid\", 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-QC"},"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"}]}