{"query":{"parameter":"o xylene","place":"CA-QC","medium":null,"statistic":null,"kind":null},"searched":{"places":["CA-QC","CA"],"parameter_keys":["cas:95-47-6","cas:6196-95-8","cas:1330-20-7","name:xylene, total m,p,o"],"names_matched":[["o xylene","cas:95-47-6"],["4 1 phenylethyl o xylene","cas:6196-95-8"],["xylenes mixed isomers sum of o m and p xylene concentrations","cas:1330-20-7"],["xylene o m p","cas:1330-20-7","xylene o"],["xylene total m p o","name:xylene, total m,p,o","xylene o"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":20,"names":["Xylènes (totaux)","Xylenes","Xylène (o,m,p)","xylènes","Phenyl xylyl ethane","Xylenes (total)"],"says":"20 rows share a parameter key with a longer name holding \"o xylene\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"o xylene\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":4,"offset":0,"returned":4,"next_offset":null,"rows":[{"id":"8bed942887b977dd","parameter":"Xylène (ortho-)","value":"350","value_num":350,"unit":"µg/m³","statistic":"four_minute_avg","direction":"max","kind":"limit","medium":"ambient_air","level":"regional","parameter_key":"cas:95-47-6","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":"7cbf55e96325c1aa","parameter":"Xylène (ortho-)","value":"150","value_num":150,"unit":"µg/m³","statistic":"four_minute_avg","direction":"max","kind":"printed_reference","medium":"ambient_air","level":"regional","parameter_key":"cas:95-47-6","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"}},{"id":"9dbac563743a5671","parameter":"Xylène (ortho-)","value":"20","value_num":20,"unit":"µg/m³","statistic":"annual_avg","direction":"max","kind":"limit","medium":"ambient_air","level":"regional","parameter_key":"cas:95-47-6","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":"fec6376033f10bea","parameter":"Xylène (ortho-)","value":"8","value_num":8,"unit":"µg/m³","statistic":"annual_avg","direction":"max","kind":"printed_reference","medium":"ambient_air","level":"regional","parameter_key":"cas:95-47-6","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: \"o xylene\", 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"}]}