{"query":{"parameter":"perfluorooctanesulfonate","place":"US-GA","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-GA","US"],"parameter_keys":["cas:45298-90-6","cas:2795-39-3","cas:1763-23-1","name:perfluorooctane sulfonate","name:somma di pfas","name:somme des substances alkylees per et polyfluorees","name:sum of pfas","name:sum of the concentration of 25 per- and polyfluoroalkyl substances","name:summe pfas-20","name:summe pfas-4"],"names_matched":[["perfluorooctanesulfonate","cas:45298-90-6"],["potassium perfluorooctanesulfonate","cas:2795-39-3"],["perfluorooctane sulfonate pfos","cas:1763-23-1","perfluorooctane sulfonate pfos"],["perfluorooctane sulfonate pfos","name:perfluorooctane sulfonate","perfluorooctane sulfonate pfos"],["perfluorooctane sulfonate pfos","name:somma di pfas","perfluorooctane sulfonate pfos"],["perfluorooctane sulfonate pfos","name:somme des substances alkylees per et polyfluorees","perfluorooctane sulfonate pfos"],["perfluorooctane sulfonate pfos","name:sum of pfas","perfluorooctane sulfonate pfos"],["perfluorooctane sulfonate pfos","name:sum of the concentration of 25 per- and polyfluoroalkyl substances","perfluorooctane sulfonate pfos"],["perfluorooctane sulfonate pfos","name:summe pfas-20","perfluorooctane sulfonate pfos"],["perfluorooctane sulfonate pfos","name:summe pfas-4","perfluorooctane sulfonate pfos"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":10,"names":["~Perfluorooctanesulfonic acid (PFOS)","~Potassium perfluorooctanesulfonate","PFOS"],"says":"10 rows share a parameter key with a longer name holding \"perfluorooctanesulfonate\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"perfluorooctanesulfonate\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":8,"offset":0,"returned":8,"next_offset":null,"rows":[{"id":"26c5b6545365946f","parameter":"Perfluorooctane Sulfonate (PFOS)","value":"71","value_num":71,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:45298-90-6","place":["US"],"conditions":["EPA's recommendation under Clean Water Act § 304(a): 'State and Tribal governments may use these criteria or use them as guidance in developing their own' — it binds a water once the state adopts it for the water's designated use","receiving_water is freshwater","Freshwater CMC (acute): criterion maximum concentration, acute"],"cite":{"instrument":"us_nrwqc_aquatic","title":"EPA National Recommended Water Quality Criteria — Aquatic Life Criteria Table (freshwater and saltwater CMC/CCC)","issuer":"U.S. Environmental Protection Agency","edition":"EPA web table, last updated on June 9, 2026 (fetched 2026-10-09); each criterion carries its publication year","source_url":"https://www.epa.gov/wqc/national-recommended-water-quality-criteria-aquatic-life-criteria-table","source_sha256":"be6b429558db9852c3456eb22c17046aa1a3335ee89e702e8afb793f9b5b25ec","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"National Recommended Aquatic Life Criteria table","page":null,"quote":"Perfluorooctane Sulfonate (PFOS) 45298-90-6; 1763-23-1; 2795-39-3; 56773-42-3; 4021-47-0; 29457-72-5 71 0.25 in water 0.028 mg/kg Wet Weight in Invertebrate Whole-Body Tissue 0.201 mg/kg Wet Weight in Fish Whole-Body Tissues 0.087 mg/kg Wet Weight in Fish Muscle Tissue 550 — 2024"}},{"id":"890290993a08dd5e","parameter":"Perfluorooctane Sulfonate (PFOS)","value":"0.25","value_num":0.25,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:45298-90-6","place":["US"],"conditions":["EPA's recommendation under Clean Water Act § 304(a): 'State and Tribal governments may use these criteria or use them as guidance in developing their own' — it binds a water once the state adopts it for the water's designated use","receiving_water is freshwater","Freshwater CCC (chronic): criterion continuous concentration, chronic"],"cite":{"instrument":"us_nrwqc_aquatic","title":"EPA National Recommended Water Quality Criteria — Aquatic Life Criteria Table (freshwater and saltwater CMC/CCC)","issuer":"U.S. Environmental Protection Agency","edition":"EPA web table, last updated on June 9, 2026 (fetched 2026-10-09); each criterion carries its publication year","source_url":"https://www.epa.gov/wqc/national-recommended-water-quality-criteria-aquatic-life-criteria-table","source_sha256":"be6b429558db9852c3456eb22c17046aa1a3335ee89e702e8afb793f9b5b25ec","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"National Recommended Aquatic Life Criteria table","page":null,"quote":"Perfluorooctane Sulfonate (PFOS) 45298-90-6; 1763-23-1; 2795-39-3; 56773-42-3; 4021-47-0; 29457-72-5 71 0.25 in water 0.028 mg/kg Wet Weight in Invertebrate Whole-Body Tissue 0.201 mg/kg Wet Weight in Fish Whole-Body Tissues 0.087 mg/kg Wet Weight in Fish Muscle Tissue 550 — 2024"}},{"id":"3951d52c64306b31","parameter":"Perfluorooctane Sulfonate (PFOS)","value":"550","value_num":550,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:45298-90-6","place":["US"],"conditions":["EPA's recommendation under Clean Water Act § 304(a): 'State and Tribal governments may use these criteria or use them as guidance in developing their own' — it binds a water once the state adopts it for the water's designated use","receiving_water is marine","Saltwater CMC (acute): criterion maximum concentration, acute"],"cite":{"instrument":"us_nrwqc_aquatic","title":"EPA National Recommended Water Quality Criteria — Aquatic Life Criteria Table (freshwater and saltwater CMC/CCC)","issuer":"U.S. Environmental Protection Agency","edition":"EPA web table, last updated on June 9, 2026 (fetched 2026-10-09); each criterion carries its publication year","source_url":"https://www.epa.gov/wqc/national-recommended-water-quality-criteria-aquatic-life-criteria-table","source_sha256":"be6b429558db9852c3456eb22c17046aa1a3335ee89e702e8afb793f9b5b25ec","fetched_at":"2026-10-09","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"National Recommended Aquatic Life Criteria table","page":null,"quote":"Perfluorooctane Sulfonate (PFOS) 45298-90-6; 1763-23-1; 2795-39-3; 56773-42-3; 4021-47-0; 29457-72-5 71 0.25 in water 0.028 mg/kg Wet Weight in Invertebrate Whole-Body Tissue 0.201 mg/kg Wet Weight in Fish Whole-Body Tissues 0.087 mg/kg Wet Weight in Fish Muscle Tissue 550 — 2024"}},{"id":"a06eb6e25eb25293","parameter":"~Perfluorooctanesulfonate","value":"0.0063","value_num":0.0063,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:45298-90-6","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":"unchanged"},"section":null,"page":null,"quote":null,"table":"sols","column":"residentiel"}},{"id":"9694989d3ece7aeb","parameter":"~Perfluorooctanesulfonate","value":"0.058","value_num":0.058,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:45298-90-6","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":"unchanged"},"section":null,"page":null,"quote":null,"table":"sols","column":"industriel"}},{"id":"5541d068bcf23373","parameter":"~Perfluorooctanesulfonate","value":"1.5e-05","value_num":0.000015,"unit":"mg/kg","direction":"max","kind":"guideline","medium":"soil","level":"national","parameter_key":"cas:45298-90-6","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":"unchanged"},"section":null,"page":null,"quote":null,"table":"ssl","column":"risque"}},{"id":"51e7a09610365f3a","parameter":"~Perfluorooctanesulfonate","value":"3e-05","value_num":0.00003,"unit":"mg/kg","direction":"max","kind":"printed_reference","medium":"soil","level":"national","parameter_key":"cas:45298-90-6","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":"unchanged"},"section":null,"page":null,"quote":null,"table":"ssl","column":"mcl"}},{"id":"9668bf15bd700eae","parameter":"~Perfluorooctanesulfonate","value":"0.002","value_num":0.002,"unit":"µg/L","direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"cas:45298-90-6","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":"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-GA"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"perfluorooctanesulfonate\", 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-GA"},"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"}]}