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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":0.0029,"valueText":"0,0029","unit":"µg/L","limit":0.1,"limitUnit":"µg/L","status":"ok","sampleDate":"2025-10-07T00:00:00Z","sampleId":"ZWALCOURT9:2025-10-07"},"pfas4":{"value":0.0014,"valueText":"0,0014","unit":"µg/L","limit":0.004,"limitUnit":"µg/L","status":"ok","sampleDate":"2025-10-07T00:00:00Z","sampleId":"ZWALCOURT9:2025-10-07"},"pfas4DetectedCount":1,"lowerBound":true,"sampledAt":null,"qualifiers":[{"name":"PFOS","valueText":"<0,001","unit":"µg/L"},{"name":"PFOA","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":"<0,001","unit":"µg/L"},{"name":"PFTrDA","valueText":"<0,001","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":"<0,001","unit":"µg/L"},{"name":"PFUnDS","valueText":"<0,001","unit":"µg/L"},{"name":"PFDoDS","valueText":"<0,001","unit":"µg/L"},{"name":"PFTrDS","valueText":"<0,001","unit":"µg/L"}],"comparison":{"proposed":{"value":0.0005,"period":"annual_mean","official":false,"state":"over"},"sweden":{"value":0.004,"jurisdiction":"se"},"franceSum20":{"value":0.1,"jurisdiction":"fr"}}},"samples":[{"id":"ZWALCOURT9:2025-10-07","date":"2025-10-07","commune":"91072","communeName":"Houyet","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZWALCOURT9"],"sum20":{"value":0.0029,"valueText":"0,0029","unit":"µg/L","nonDetect":false,"lowerBound":false},"pfas4":{"value":0.0014,"valueText":"0,0014","unit":"µg/L","nonDetect":false,"lowerBound":false},"revision":"70bc1b3876df766d93123e5c44e7041b7fc349eaab4aa0c5585dc84ef7ff36ba"},{"id":"ZHOUYET2:2025-02-18","date":"2025-02-18","commune":"91072","communeName":"Houyet","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZHOUYET2"],"sum20":{"value":null,"valueText":"<0,026","unit":"µg/L","nonDetect":true,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","nonDetect":true,"lowerBound":false},"revision":"eaf3fb9512c631badab7421faa73eb4f33f4d189540a591d5fe0204d784ed234"},{"id":"ZHOUYET3:2025-02-18","date":"2025-02-18","commune":"91072","communeName":"Houyet","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZHOUYET3"],"sum20":{"value":null,"valueText":"<0,026","unit":"µg/L","nonDetect":true,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","nonDetect":true,"lowerBound":false},"revision":"9de1464bf4301ff03a32d56113bab140d84e77d587b45316f555ec0e716fc15e"},{"id":"ZHOUYET4:2025-02-18","date":"2025-02-18","commune":"91072","communeName":"Houyet","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZHOUYET4"],"sum20":{"value":null,"valueText":"<0,026","unit":"µg/L","nonDetect":true,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","nonDetect":true,"lowerBound":false},"revision":"e17a128ff7722542bf1db266d9684c1984d610cedc9937f75110056ea9146971"},{"id":"ZHOUYET5:2025-02-18","date":"2025-02-18","commune":"91072","communeName":"Houyet","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZHOUYET5"],"sum20":{"value":null,"valueText":"<0,026","unit":"µg/L","nonDetect":true,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","nonDetect":true,"lowerBound":false},"revision":"b23780684b61609eaa7d3480ff2657d3e286553c7057836fb845f3b68203c178"},{"id":"ZHOUYET8:2025-02-18","date":"2025-02-18","commune":"91072","communeName":"Houyet","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZHOUYET8"],"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":"8241bd40038be062eb55da3bb68c81551f1a10c4f6feeea5d180a581384b8ed2"},{"id":"ZWALCOURT9:2025-02-18","date":"2025-02-18","commune":"91072","communeName":"Houyet","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZWALCOURT9"],"sum20":{"value":0.009,"valueText":"0,009","unit":"µg/L","nonDetect":false,"lowerBound":false},"pfas4":{"value":0.004,"valueText":"0,004","unit":"µg/L","nonDetect":false,"lowerBound":false},"revision":"f841d0d8401990d4812cd96d2a64c0fd3e0c38d2080fe7e49ee5748cba4d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