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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":"<0,0235","unit":"µg/L","limit":0.1,"limitUnit":"µg/L","status":"ok","sampleDate":"2025-12-02T00:00:00Z","sampleId":"ZW1017:2025-12-02","nonDetect":true,"upperBound":0.0235},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","limit":0.004,"limitUnit":"µg/L","status":"ok","sampleDate":"2025-12-02T00:00:00Z","sampleId":"ZW1017:2025-12-02","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":"<0,0015","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":"ZW1017:2025-12-02","date":"2025-12-02","commune":"61080","communeName":"Engis","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1017"],"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":"53d12d9a81fac8d942acaa12e94888eedeb97a6735e473620181d7cc8b29019b"},{"id":"ZW1002:2025-11-03","date":"2025-11-03","commune":"61080","communeName":"Engis","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1002"],"sum20":{"value":0.0044,"valueText":"0,0044","unit":"µg/L","nonDetect":false,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","nonDetect":true,"lowerBound":false},"revision":"49234fdd2a5605bf2e007bacd5743b98af69bff924557b56e1d8b0c3cac3cddb"},{"id":"ZW1002:2025-08-07","date":"2025-08-07","commune":"61080","communeName":"Engis","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1002"],"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":"d0765c09842cac043f790c9fd09e21f1b93e9a4effdc5119ec8d127199f3cf61"},{"id":"ZW1017:2025-06-24","date":"2025-06-24","commune":"61080","communeName":"Engis","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1017"],"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":"e10980fc94cb48f220c349db5de5290faee60d53f895023550bbbd4847f34870"},{"id":"ZW1002:2025-06-12","date":"2025-06-12","commune":"61080","communeName":"Engis","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1002"],"sum20":{"value":0.004,"valueText":"0,004","unit":"µg/L","nonDetect":false,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","nonDetect":true,"lowerBound":false},"revision":"8b22bc12cc84b4670ef6927614655a07cd094c614b1f420fa7982ac3b5d70202"},{"id":"ZW1017:2025-04-08","date":"2025-04-08","commune":"61080","communeName":"Engis","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1017"],"sum20":{"value":0.002,"valueText":"0,002","unit":"µg/L","nonDetect":false,"lowerBound":false},"pfas4":{"value":0.002,"valueText":"0,002","unit":"µg/L","nonDetect":false,"lowerBound":false},"revision":"ee38604a08b58dfb79ed31e234e9dc6c50e260c8bd57ab39deeaf3069b704039"},{"id":"ZW1002:2025-02-10","date":"2025-02-10","commune":"61080","communeName":"Engis","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1002"],"sum20":{"value":null,"valueText":"<0,026","unit":"µg/L","nonDetect":true,"lowerBound":false},"pfas4":{"value":null,"valueTe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