{"query":{"parameter":"perfluorobutanoic acid","place":"IT","medium":null,"statistic":null,"kind":null},"searched":{"places":["IT","EU"],"parameter_keys":["cas:375-22-4","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"],"names_matched":[["perfluorobutanoic acid","cas:375-22-4"],["perfluorobutanoic acid","name:somma di pfas"],["perfluorobutanoic acid","name:somme des substances alkylees per et polyfluorees"],["perfluorobutanoic acid","name:sum of pfas"],["perfluorobutanoic acid","name:sum of the concentration of 25 per- and polyfluoroalkyl substances"],["perfluorobutanoic acid","name:summe pfas-20"]],"match":"exact","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":4,"offset":0,"returned":4,"next_offset":null,"rows":[{"id":"b24b7763979ce8e1","parameter":"Acido perfluorobutanoico (PFBA)","value":"7","value_num":7,"unit":"µg/l","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:375-22-4","place":["IT"],"conditions":["receiving_water is freshwater"],"cite":{"instrument":"it_dlgs152_all1_sqa","title":"D.Lgs. 3 aprile 2006, n. 152 — Parte Terza, Allegato 1, Parte 2, A.2.6 Tab. 1/A (sostanze dell'elenco di priorità) e A.2.7 Tab. 1/B (altre sostanze): standard di qualità ambientale nella colonna d'acqua, come sostituite dal D.Lgs. 13 ottobre 2015, n. 172","issuer":"Presidente della Repubblica (decreto legislativo)","edition":"D.Lgs. 172/2015 art. 1 c. 1 lett. g) and i) (G.U. Serie generale n. 250 del 27-10-2015, pp. 9-12 and 15-17), in force 11-11-2015. normattiva's consolidated Allegato 1 (vigente since 5-8-2016, held in reports/corpus/it_water1010) prints the same Tab. 1/A and 1/B: the two 2016 updates (D.M. 6 luglio 2016, groundwater) change no surface-water standard","source_url":"https://www.gazzettaufficiale.it/eli/gu/2015/10/27/250/sg/pdf","source_sha256":"f5577be12e9f794f1954e993a9447e593e455fb040f00f4887f8cce975ed1eea","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Tab. 1/B n. 50, SQA-MA, acque superficiali interne","page":16,"quote":"50 375-22-4 Acido perfluorobutanoico (PFBA) (8) 7 1,4"}},{"id":"08609eb5253c29df","parameter":"Acido perfluorobutanoico (PFBA)","value":"1,4","value_num":1.4,"unit":"µg/l","statistic":"annual_avg","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:375-22-4","place":["IT"],"conditions":["receiving_water is marine"],"cite":{"instrument":"it_dlgs152_all1_sqa","title":"D.Lgs. 3 aprile 2006, n. 152 — Parte Terza, Allegato 1, Parte 2, A.2.6 Tab. 1/A (sostanze dell'elenco di priorità) e A.2.7 Tab. 1/B (altre sostanze): standard di qualità ambientale nella colonna d'acqua, come sostituite dal D.Lgs. 13 ottobre 2015, n. 172","issuer":"Presidente della Repubblica (decreto legislativo)","edition":"D.Lgs. 172/2015 art. 1 c. 1 lett. g) and i) (G.U. Serie generale n. 250 del 27-10-2015, pp. 9-12 and 15-17), in force 11-11-2015. normattiva's consolidated Allegato 1 (vigente since 5-8-2016, held in reports/corpus/it_water1010) prints the same Tab. 1/A and 1/B: the two 2016 updates (D.M. 6 luglio 2016, groundwater) change no surface-water standard","source_url":"https://www.gazzettaufficiale.it/eli/gu/2015/10/27/250/sg/pdf","source_sha256":"f5577be12e9f794f1954e993a9447e593e455fb040f00f4887f8cce975ed1eea","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Tab. 1/B n. 50, SQA-MA, altre acque di superficie","page":16,"quote":"50 375-22-4 Acido perfluorobutanoico (PFBA) (8) 7 1,4"}},{"id":"7fbd8682e5c9d1bf","parameter":"Somma di PFAS","value":"0,10","value_num":0.1,"unit":"µg/l","direction":"max","kind":"limit","medium":"drinking_water","level":"national","sum_of":{"members":["acido perfluorobutanoico (PFBA)","acido perfluoropentanoico (PFPeA)","acido perfluoroesanoico (PFHxA)","acido perfluoroeptanoico (PFHpA)","acido perfluoroottanoico (PFOA)","acido perfluorononanoico (PFNA)","acido perfluorodecanoico (PFDA)","acido perfluorundecanoico (PFUnDA)","acido perfluorododecanoico (PFDoDA)","acido perfluorotridecanoico (PFTrDA)","acido perfluorobutanosolfonico (PFBS)","acido perfluoropentansolfonico (PFPeS)","acido perfluoroesansolfonico (PFHxS)","acido perfluoroeptansolfonico (PFHpS)","acido perfluoroottansolfonico (PFOS)","acido perfluorononansolfonico (PFNS)","acido perfluorodecansolfonico (PFDS)","acido perfluoroundecansolfonico","acido perfluorododecansolfonico","acido perfluorotridecansolfonico","acido 2,3,3,3-tetrafluoro-2-(eptafluoropropossi)propanoico (HFPO-DA o GenX)","acido dodecafluoro-3H-4,8-diossanonanoico (ADONA)","fluorotelomero solfonato (6:2 FTS)","acido difluoro{[2,2,4,5- tetrafluoro-5- (trifluorometossi)-1,3-diossolan-4-yl]ossi}acetico (C6O4)"],"says":"This limit binds the sum of the 24 substances the instrument lists (members, as printed), not any one of them alone."},"parameter_key":"name:somma di pfas","place":["IT"],"conditions":["a decorrere dal 12 gennaio 2026"],"cite":{"instrument":"it_edch_pfas","title":"D.Lgs. 23 febbraio 2023, n. 18 — acque destinate al consumo umano, Allegato I: the PFAS parameters only","issuer":"Governo della Repubblica Italiana","edition":"DECRETO LEGISLATIVO 23 febbraio 2023 , n. 18 . Attuazione della direttiva (UE) 2020/2184 del Parlamento europeo e del Consiglio, del 16 dicembre 2020, concernente la qualità delle acque destinate al consumo umano.","source_url":"https://www.gazzettaufficiale.it/eli/gu/2023/03/06/55/sg/pdf","source_sha256":"13bab03e8b9d03bfb456cc8217bac560177f46d2c9b8254c223200145631321f","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Allegato I","page":null,"quote":"Somma di PFAS 0,10 ȝg/l","column":"valeur"}},{"id":"cffec776a1aa5a38","parameter":"Sum of PFAS","value":"0,10 μg/l","value_num":0.1,"unit":"μg/l","direction":"max","kind":"limit","medium":"drinking_water","level":"eu","sum_of":{"members":["Perfluorobutanoic acid (PFBA)","Perfluoropentanoic acid (PFPA)","Perfluorohexanoic acid (PFHxA)","Perfluoroheptanoic acid (PFHpA)","Perfluorooctanoic acid (PFOA)","Perfluorononanoic acid (PFNA)","Perfluorodecanoic acid (PFDA)","Perfluoroundecanoic acid (PFUnDA)","Perfluorododecanoic acid (PFDoDA)","Perfluorotridecanoic acid (PFTrDA)","Perfluorobutane sulfonic acid (PFBS)","Perfluoropentane sulfonic acid (PFPS)","Perfluorohexane sulfonic acid (PFHxS)","Perfluoroheptane sulfonic acid (PFHpS)","Perfluorooctane sulfonic acid (PFOS)","Perfluorononane sulfonic acid (PFNS)","Perfluorodecane sulfonic acid (PFDS)","Perfluoroundecane sulfonic acid","Perfluorododecane sulfonic acid","Perfluorotridecane sulfonic acid"],"says":"This limit binds the sum of the 20 substances the instrument lists (members, as printed), not any one of them alone."},"parameter_key":"name:sum of pfas","place":["EU"],"conditions":[],"cite":{"instrument":"eu_dwd","title":"Directive (EU) 2020/2184 of the European Parliament and of the Council of 16 December 2020 on the quality of water intended for human consumption (recast), Annex I Part B — chemical parameters","issuer":"European Parliament and Council of the European Union","edition":"Directive (EU) 2020/2184, OJ L 435, 23.12.2020, p. 1","source_url":"https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184","source_sha256":"39c4a65fee1dfe9eecfdc1ba3f67d9dcbce681c4698a3b3dda2e9e9bb4fb0177","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"not verified"},"section":null,"page":null,"quote":null,"note":"‘Sum of PFAS’ means the sum of per- and polyfluoroalkyl substances considered a concern as regards water intended for human consumption listed in point 3 of Part B of Annex III. This is a subset of ‘PFAS Total’ substances that contain a perfluoroalkyl moiety with three or more carbons (i.e. –CnF2n–, n ≥ 3) or a perfluoroalkylether moiety with two or more carbons (i.e. –CnF2nOCmF2m–, n and m ≥ 1).","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":"IT"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"perfluorobutanoic 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":"IT"},"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"}]}