{"query":{"parameter":"biphenyl","place":"US-LA","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-LA","US"],"parameter_keys":["cas:92-52-4","cas:92-87-5","cas:91-94-1","cas:119-90-4","cas:119-93-7","cas:644-08-6","cas:36876-13-8","cas:28984-89-6","cas:29225-91-0","cas:25640-78-2","cas:643-58-3","cas:643-93-6","name:biphenyl 1,1'-","cas:15110-84-6","cas:69009-90-1","cas:27344-41-8","cas:32598-14-4","cas:57465-28-8","cas:32774-16-6","cas:32598-13-3"],"names_matched":[["biphenyl","cas:92-52-4"],["1 1 biphenyl 4 4 diamine","cas:92-87-5"],["1 1 biphenyl 4 4 diamine 3 3 dichloro","cas:91-94-1"],["1 1 biphenyl 4 4 diamine 3 3 dimethoxy","cas:119-90-4"],["1 1 biphenyl 4 4 diamine 3 3 dimethyl","cas:119-93-7"],["1 1 biphenyl 4 methyl","cas:644-08-6"],["1 1 biphenyl ar ar bis 1 methylethyl","cas:36876-13-8"],["1 1 biphenyl phenoxy","cas:28984-89-6"],["1 1 biphenyl tris 1 methylethyl","cas:29225-91-0"],["1 methylethyl 1 1 biphenyl","cas:25640-78-2"],["2 methyl biphenyl","cas:643-58-3"],["3 methyl biphenyl","cas:643-93-6"],["4 methyl biphenyl","cas:644-08-6"],["biphenyl 1 1","name:biphenyl 1,1'-"],["butanamide 2 2 3 3 dichloro 1 1 biphenyl 4 4 diyl bis azo bis n 2 5 dimethoxyphenyl 3 oxo","cas:15110-84-6"],["diisopropyl 1 1 biphenyl","cas:69009-90-1"],["disodium 4 4 bis 2 sulfostyryl biphenyl","cas:27344-41-8"],["polychlorinated biphenyl 105 total","cas:32598-14-4"],["polychlorinated biphenyl 126 total","cas:57465-28-8"],["polychlorinated biphenyl 169 total","cas:32774-16-6"],["polychlorinated biphenyl 77 total","cas:32598-13-3"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":38,"names":["Benzidine","~Tetrachlorobiphenyl, 3,3',4,4'- (PCB 77)","Dichlorobenzidine, 3,3'-","Dimethoxybenzidine, 3,3'-","Dimethylbenzidine, 3,3'-","~Pentachlorobiphenyl, 2,3,3',4,4'- (PCB 105)","~Pentachlorobiphenyl, 3,3',4,4',5- (PCB 126)","~Hexachlorobiphenyl, 3,3',4,4',5,5'- (PCB 169)"],"says":"38 rows share a parameter key with a longer name holding \"biphenyl\" 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":6,"offset":0,"returned":6,"next_offset":null,"rows":[{"id":"8f72af4ce5e12734","parameter":"Biphenyl","value":"97.5","value_num":97.5,"unit":"lb/yr","direction":"max","kind":"threshold","medium":"air_emission","level":"regional","parameter_key":"cas:92-52-4","place":["US-LA"],"conditions":["the source is a major source of toxic air pollutants (5103)"],"cite":{"instrument":"us_la_lac33_iii_5112","title":"LAC 33:III.5112 — Toxic air pollutants: minimum emission rates (Table 51.1) and ambient air standards (Table 51.2)","issuer":null,"edition":"LII transcription of LAC 33:III.5112 (fetched 2026-09-25)","source_url":"https://www.law.cornell.edu/regulations/louisiana/La-Admin-Code-tit-33-SS-III-5112","source_sha256":"ad168892d6da7f3e8eda05d066b3cf2a0018d9fefcd81676abc7ca5110cca6dc","fetched_at":"2026-09-25","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 51.1 Class II","page":null,"quote":"Biphenyl 92-52-4 1,1-biphenyl, Xenene 97.5"}},{"id":"6d4c55fb73562016","parameter":"Biphenyl","value":"23.80","value_num":23.8,"unit":"µg/m³","statistic":"eight_hour_avg","direction":"max","kind":"limit","medium":"ambient_air","level":"regional","parameter_key":"cas:92-52-4","place":["US-LA"],"conditions":["a major source at or above the minimum emission rate demonstrates it (5109.B)"],"cite":{"instrument":"us_la_lac33_iii_5112","title":"LAC 33:III.5112 — Toxic air pollutants: minimum emission rates (Table 51.1) and ambient air standards (Table 51.2)","issuer":null,"edition":"LII transcription of LAC 33:III.5112 (fetched 2026-09-25)","source_url":"https://www.law.cornell.edu/regulations/louisiana/La-Admin-Code-tit-33-SS-III-5112","source_sha256":"ad168892d6da7f3e8eda05d066b3cf2a0018d9fefcd81676abc7ca5110cca6dc","fetched_at":"2026-09-25","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"Table 51.2 Class II","page":null,"quote":"Biphenyl 92-52-4 II 23.80"}},{"id":"29b963fb3e15fead","parameter":"Biphenyl, 1,1'-","value":"47","value_num":47,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:92-52-4","place":["US"],"conditions":["Resident Soil (mg/kg)"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"sols","column":"residentiel"}},{"id":"46ca5a17fa2d5c5b","parameter":"Biphenyl, 1,1'-","value":"200","value_num":200,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:92-52-4","place":["US"],"conditions":["Industrial Soil (mg/kg)"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"sols","column":"industriel"}},{"id":"799d016be71cd9a6","parameter":"Biphenyl, 1,1'-","value":"0.0087","value_num":0.0087,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:92-52-4","place":["US"],"conditions":["Protection of Groundwater SSLs: Risk-based SSL (mg/kg); SSL values are based on DAF=1"],"cite":{"instrument":"us_rsl_soil","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Soil","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"ssl","column":"risque"}},{"id":"c6aace6028164d62","parameter":"Biphenyl, 1,1'-","value":"0.83","value_num":0.83,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:92-52-4","place":["US"],"conditions":["Tap Water (ug/L): Regional Screening Level (RSL) Summary Table (TR=1E-06, HQ=1) November 2024"],"cite":{"instrument":"us_rsl_tapwater","title":"US EPA — Regional Screening Levels (RSLs), Summary Table (TR=1E-06, THQ=1.0), November 2024 — Tap Water","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"November 2024","source_url":"https://semspub.epa.gov/src/document/HQ/405270","source_sha256":"0160dc81b4f55d738a354a74de92488f149946ebfa7c6a6c64592f45348043d7","fetched_at":"2026-09-19","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":null,"page":null,"quote":null,"table":"eau","column":"eau_robinet"}}],"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-LA"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"biphenyl\", 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-LA"},"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"}]}