{"query":{"parameter":"pm 10","place":"US-RI","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-RI","US"],"parameter_keys":["name:pm 10","name:partikel pm 10","name:partikel (pm 10 ) ohne berucksichtigung der staubinhaltsstoffe","cas:7439-92-1"],"names_matched":[["pm 10","name:pm 10"],["partikel pm 10","name:partikel pm 10"],["partikel pm 10 ohne berucksichtigung der staubinhaltsstoffe","name:partikel (pm 10 ) ohne berucksichtigung der staubinhaltsstoffe"],["pb in pm 10","cas:7439-92-1"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":3189,"names":["Lead","Lead (T)","Pb","Total Lead","~Lead and Compounds","Lead(T)","lead","~Lead and Compounds (with other sources of lead present, see Guidance)"],"says":"3189 rows share a parameter key with a longer name holding \"pm 10\" but are printed under names without these words (that key is wider than the name): not sent. Ask for one by its name or CAS number."}},"total":3,"offset":0,"returned":3,"next_offset":null,"rows":[{"id":"89774fc29895bfd4","parameter":"PM 10","value":"15","value_num":15,"unit":"tpy","direction":"max","kind":"threshold","medium":"air_emission","level":"national","parameter_key":"name:pm 10","place":["US"],"conditions":[],"cite":{"instrument":"us_40cfr52_21","title":"40 CFR 52.21 — Prevention of significant deterioration of air quality","issuer":null,"edition":"eCFR 2026-08-01 (versioner API)","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=52&section=52.21","source_sha256":"857e290109cd8028b70b239ab2b16e9c5d068a71e557a7c419ebba4dee2c40b4","fetched_at":"2026-09-25","section":"52.21(b)(23)(i)","page":null,"quote":"PM 10 : 15 tpy"}},{"id":"d72f08a06cdffd42","parameter":"PM 10","value":"150","value_num":150,"unit":"µg/m³","direction":"max","kind":"limit","medium":"ambient_air","level":"national","parameter_key":"name:pm 10","place":["US"],"conditions":["expected number of days per calendar year with a 24-hour average concentration above 150 µg/m 3 , as determined in accordance with appendix K to this part, is equal to or less than one"],"cite":{"instrument":"us_naaqs","title":"40 CFR Part 50, National Primary and Secondary Ambient Air Quality Standards, §§ 50.4–50.21 (eCFR as of 2026-08-01)","issuer":null,"edition":"90 FR 4651, Jan. 16, 2025","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=50","source_sha256":null,"fetched_at":null,"section":"§ 50.6 National primary and secondary ambient air quality standards for PM 10 .","page":null,"quote":"(a) The level of the national primary and secondary 24-hour ambient air quality standards for particulate matter is 150 micrograms per cubic meter (µg/m 3 ), 24-hour average concentration.","column":"valeur"}},{"id":"9bd4fe10524a54b1","parameter":"PM 10","value":"150","value_num":150,"unit":"µg/m³","direction":"max","kind":"limit","medium":"ambient_air","level":"national","parameter_key":"name:pm 10","place":["US"],"conditions":["expected number of days per calendar year with a 24-hour average concentration above 150 µg/m 3 , as determined in accordance with appendix K to this part, is equal to or less than one"],"cite":{"instrument":"us_naaqs","title":"40 CFR Part 50, National Primary and Secondary Ambient Air Quality Standards, §§ 50.4–50.21 (eCFR as of 2026-08-01)","issuer":null,"edition":"90 FR 4651, Jan. 16, 2025","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=50","source_sha256":null,"fetched_at":null,"section":"§ 50.6 National primary and secondary ambient air quality standards for PM 10 .","page":null,"quote":"(a) The level of the national primary and secondary 24-hour ambient air quality standards for particulate matter is 150 micrograms per cubic meter (µg/m 3 ), 24-hour average concentration.","column":"valeur"}}],"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":"US-RI"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"pm 10\", 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":"US-RI"},"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"}]}