{"query":{"parameter":"hexafluoropropylene oxide dimer acid","place":"US-MO","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-MO","US"],"parameter_keys":["cas:13252-13-6","cas:62037-80-3","name:hexafluoropropylene oxide dimer acid and its ammonium salt"],"names_matched":[["hexafluoropropylene oxide dimer acid","cas:13252-13-6"],["hexafluoropropylene oxide dimer acid ammonium salt","cas:62037-80-3"],["hexafluoropropylene oxide dimer acid and its ammonium salt","name:hexafluoropropylene oxide dimer acid and its ammonium salt"],["hexafluoropropylene oxide dimer acid and its ammonium salt genx chemicals","name:hexafluoropropylene oxide dimer acid and its ammonium salt"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":4,"names":["~Ammonium perfluoro-2-methyl-3-oxahexanoate"],"says":"4 rows share a parameter key with a longer name holding \"hexafluoropropylene oxide dimer acid\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"hexafluoropropylene oxide dimer acid\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":5,"offset":0,"returned":5,"next_offset":null,"rows":[{"id":"c8934cede2a13867","parameter":"~Hexafluoropropylene oxide dimer acid (HFPO-DA)","value":"0.23","value_num":0.23,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:13252-13-6","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":"not verified"},"section":null,"page":null,"quote":null,"table":"sols","column":"residentiel"}},{"id":"e89f7a75143fd737","parameter":"~Hexafluoropropylene oxide dimer acid (HFPO-DA)","value":"3.5","value_num":3.5,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:13252-13-6","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":"not verified"},"section":null,"page":null,"quote":null,"table":"sols","column":"industriel"}},{"id":"c8c459b6f84e9dc8","parameter":"~Hexafluoropropylene oxide dimer acid (HFPO-DA)","value":"1.5e-05","value_num":0.000015,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:13252-13-6","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":"not verified"},"section":null,"page":null,"quote":null,"table":"ssl","column":"risque"}},{"id":"2a9c6103b53f5a98","parameter":"~Hexafluoropropylene oxide dimer acid (HFPO-DA)","value":"1e-05","value_num":0.00001,"unit":"mg/kg","direction":"max","kind":"printed_reference","medium":"soil","level":"national","parameter_key":"cas:13252-13-6","place":["US"],"conditions":["Protection of Groundwater SSLs: MCL-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":"not verified"},"section":null,"page":null,"quote":null,"table":"ssl","column":"mcl"}},{"id":"32665a5a3a3d46c0","parameter":"~Hexafluoropropylene oxide dimer acid (HFPO-DA)","value":"0.015","value_num":0.015,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:13252-13-6","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":"not verified"},"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-MO"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"hexafluoropropylene oxide dimer 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":"US-MO"},"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"}]}