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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":null,"valueText":"<0,02","unit":"µg/L","limit":0.1,"limitUnit":"µg/L","status":"ok","sampleDate":"2025-10-29T00:00:00Z","sampleId":"ZW15085:2025-10-29","nonDetect":true,"upperBound":0.02},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","limit":0.004,"limitUnit":"µg/L","status":"ok","sampleDate":"2025-10-29T00:00:00Z","sampleId":"ZW15085:2025-10-29","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":"PFBA","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":"inconclusive"},"sweden":{"value":0.004,"jurisdiction":"se"},"franceSum20":{"value":0.1,"jurisdiction":"fr"}}},"samples":[{"id":"ZW15085:2025-10-29","date":"2025-10-29","commune":"81001","communeName":"Arlon","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW15085"],"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":"a6ce7794ca423af0042fa11c67406c2d277b93bc5523e9e8c250e4a8178bcb5f"},{"id":"ZW1344:2025-09-08","date":"2025-09-08","commune":"81001","communeName":"Arlon","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1344"],"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":"5821aabed1406f5184b5d608ed9e7c71239c64c4db70fb1cfd375d1cf6e8fb1e"},{"id":"ZW1337:2025-05-12","date":"2025-05-12","commune":"81001","communeName":"Arlon","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1337"],"sum20":{"value":null,"valueText":"<0,023","unit":"µg/L","nonDetect":true,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","nonDetect":true,"lowerBound":false},"revision":"3747ec5446e9719f78574ab248cbedea4f8352d27d3f48f5c89b8354413d541b"},{"id":"ZW1340:2025-04-28","date":"2025-04-28","commune":"81001","communeName":"Arlon","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1340"],"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":"c0c9a5ee09318a329a0a58402726fe5c19a708e1125e008f9fcf9d287b6d68b0"},{"id":"ZW1345:2025-04-22","date":"2025-04-22","commune":"81001","communeName":"Arlon","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1345"],"sum20":{"value":null,"valueText":"<0,0205","unit":"µg/L","nonDetect":true,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","nonDetect":true,"lowerBound":false},"revision":"fd46b64b01c23ab2de217c061bdcfc8be3d3d9fba39a3d04e0186e741b3450ff"},{"id":"ZW15085:2025-04-14","date":"2025-04-14","commune":"81001","communeName":"Arlon","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW15085"],"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":"f04f132d2ff2060c19b6e53a592a7dc39169533f8d06df40ada8651d66617793"},{"id":"ZW1329:2025-03-31","date":"2025-03-31","commune":"81001","communeName":"Arlon","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1329"],"sum20":{"value":null,"valueText":"<0,023","unit":"µg/L","nonDetect":true,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","u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