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Valeurs publiées en ng/L, converties en µg/L ; un « < » indique que tous les composés étaient sous la limite de quantification. Licence de réutilisation non vérifiée pour ce document (les données ouvertes du SPW sont normalement CC BY 4.0) ; attribution SPW-ARNE et SWDE en attendant confirmation."},"pfas":{"status":"measured","sum20":{"value":0.001,"valueText":"0,001","unit":"µg/L","limit":0.1,"limitUnit":"µg/L","status":"ok","sampleDate":"2025-12-08T00:00:00Z","sampleId":"ZW18123:2025-12-08"},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","limit":0.004,"limitUnit":"µg/L","status":"ok","sampleDate":"2025-12-08T00:00:00Z","sampleId":"ZW18123:2025-12-08","nonDetect":true,"upperBound":0.004},"pfas4DetectedCount":0,"lowerBound":true,"sampledAt":null,"qualifiers":[{"name":"PFOS","valueText":"<0,001","unit":"µg/L"},{"name":"PFOA","valueText":"<0,001","unit":"µg/L"},{"name":"PFHxS","valueText":"<0,001","unit":"µg/L"},{"name":"PFHxA","valueText":"<0,001","unit":"µg/L"},{"name":"PFHpA","valueText":"<0,001","unit":"µg/L"},{"name":"PFPeA","valueText":"<0,001","unit":"µg/L"},{"name":"PFNA","valueText":"<0,001","unit":"µg/L"},{"name":"PFDA","valueText":"<0,001","unit":"µg/L"},{"name":"PFUnDA","valueText":"<0,001","unit":"µg/L"},{"name":"PFDoDA","valueText":"<0,0015","unit":"µg/L"},{"name":"PFTrDA","valueText":"<0,0015","unit":"µg/L"},{"name":"PFBS","valueText":"<0,001","unit":"µg/L"},{"name":"PFPeS","valueText":"<0,001","unit":"µg/L"},{"name":"PFHpS","valueText":"<0,001","unit":"µg/L"},{"name":"PFNS","valueText":"<0,001","unit":"µg/L"},{"name":"PFDS","valueText":"<0,0015","unit":"µg/L"},{"name":"PFUnDS","valueText":"<0,0015","unit":"µg/L"},{"name":"PFDoDS","valueText":"<0,0015","unit":"µg/L"},{"name":"PFTrDS","valueText":"<0,0015","unit":"µg/L"}],"comparison":{"proposed":{"value":0.0005,"period":"annual_mean","official":false,"state":"inconclusive"},"sweden":{"value":0.004,"jurisdiction":"se"},"franceSum20":{"value":0.1,"jurisdiction":"fr"}}},"samples":[{"id":"ZW18123:2025-12-08","date":"2025-12-08","commune":"52055","communeName":"Pont-à-Celles","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW18123"],"sum20":{"value":0.001,"valueText":"0,001","unit":"µg/L","nonDetect":false,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","nonDetect":true,"lowerBound":false},"revision":"3d0422211963a5d45989baea635cee640bca3161ca0578f4f0051bb70ab0bd56"},{"id":"ZW18123:2025-12-01","date":"2025-12-01","commune":"52055","communeName":"Pont-à-Celles","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW18123"],"sum20":{"value":null,"valueText":"<0,0235","unit":"µg/L","nonDetect":true,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","nonDetect":true,"lowerBound":false},"revision":"651a31207ed7188d72d5ab68492850c384d3a816a21156eb8b91749bcef88dcc"},{"id":"ZW18299:2025-11-12","date":"2025-11-12","commune":"52055","communeName":"Pont-à-Celles","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW18299"],"sum20":{"value":null,"valueText":"<0,02","unit":"µg/L","nonDetect":true,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","nonDetect":true,"lowerBound":false},"revision":"66ab75359c4188b21435d9546e61da5aca465939b8dc10395865ccdf84b796b1"},{"id":"ZW18123:2025-10-20","date":"2025-10-20","commune":"52055","communeName":"Pont-à-Celles","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW18123"],"sum20":{"value":0.0012,"valueText":"0,0012","unit":"µg/L","nonDetect":false,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","nonDetect":true,"lowerBound":false},"revision":"5993d8fae0c157a9521670c72f8f087e02cbe1aa311de897b3d2e1ff0befa956"},{"id":"ZW18123:2025-09-24","date":"2025-09-24","commune":"52055","communeName":"Pont-à-Celles","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW18123"],"sum20":{"value":0.0025,"valueText":"0,0025","unit":"µg/L","nonDetect":false,"lowerBound":false},"pfas4":{"value":0.0014,"valueText":"0,0014","unit":"µg/L","nonDetect":false,"lowerBound":false},"revision":"06846acefc4d16f99be1caa1cec5d184f02e05de918afe8ed73c669ccfcaf5f8"},{"id":"ZW18123:2025-09-24#2","date":"2025-09-24","commune":"52055","communeName":"Pont-à-Celles","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW18123"],"sum20":{"value":null,"valueText":"<0,02","unit":"µg/L","nonDetect":true,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","nonDetect":true,"lowerBound":false},"revision":"a8eaf1063a0a587ee291af7ae4f215f1aa6ef2a4245bd2060e067f3224306de5"},{"id":"ZW1161:2025-09-11","date":"2025-09-11","commune":"52055","communeName":"Pont-à-Celles","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1161"],"sum20":{"value":null,"valueText":"<0,02","unit":"µg/L","nonDetect":true,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit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