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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":0.0151,"valueText":"0,0151","unit":"µg/L","limit":0.1,"limitUnit":"µg/L","status":"ok","sampleDate":"2025-12-08T00:00:00Z","sampleId":"ZIECBW0:2025-12-08"},"pfas4":{"value":0.0012,"valueText":"0,0012","unit":"µg/L","limit":0.004,"limitUnit":"µg/L","status":"ok","sampleDate":"2025-12-08T00:00:00Z","sampleId":"ZIECBW0:2025-12-08"},"pfas4DetectedCount":1,"lowerBound":true,"sampledAt":null,"qualifiers":[{"name":"PFOS","valueText":"<0,001","unit":"µg/L"},{"name":"PFOA","valueText":"<0,001","unit":"µg/L"},{"name":"PFHpA","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":"<0,0015","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":"ZIECBW0:2025-12-08","date":"2025-12-08","commune":"25107","communeName":"Villers-la-Ville","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZIECBW0"],"sum20":{"value":0.0151,"valueText":"0,0151","unit":"µg/L","nonDetect":false,"lowerBound":false},"pfas4":{"value":0.0012,"valueText":"0,0012","unit":"µg/L","nonDetect":false,"lowerBound":false},"revision":"42dc47e0d9ac7233efeea2132641824fc66a902e47772175eeec044991c8509c"},{"id":"ZIECBW23:2025-10-08","date":"2025-10-08","commune":"25107","communeName":"Villers-la-Ville","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZIECBW23"],"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":"17f14005c5efc023942a4da97aeaef249aaa022733d2b3dce1a2e936fec80f13"},{"id":"ZIECBW0:2025-09-23","date":"2025-09-23","commune":"25107","communeName":"Villers-la-Ville","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZIECBW0"],"sum20":{"value":0.025,"valueText":"0,025","unit":"µg/L","nonDetect":false,"lowerBound":false},"pfas4":{"value":0.002,"valueText":"0,002","unit":"µg/L","nonDetect":false,"lowerBound":false},"revision":"736c971275e4f05dc5c158865c8e2cc5af70004734e22cb71c727ba15620b835"},{"id":"ZIECBW23:2025-04-22","date":"2025-04-22","commune":"25107","communeName":"Villers-la-Ville","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZIECBW23"],"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":"0666e99004a70012118945e86a69be338139b35c6736f3bb0b3fb52084ceee17"},{"id":"ZIECBW0:2025-04-18","date":"2025-04-18","commune":"25107","communeName":"Villers-la-Ville","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZIECBW0"],"sum20":{"value":0.025,"valueText":"0,025","unit":"µg/L","nonDetect":false,"lowerBound":false},"pfas4":{"value":0.005,"valueText":"0,005","unit":"µg/L","nonDetect":false,"lowerBound":false},"revision":"3ce41953593d4d52fb11d5c7d4597a1b7016b5d5ce189281c5000a30d7284648"},{"id":"ZIECBW0:2025-02-04","date":"2025-02-04","commune":"25107","communeName":"Villers-la-Ville","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZIECBW0"],"sum20":{"value":0.012,"valueText":"0,012","unit":"µg/L","nonDetect":false,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","nonDetect":true,"lowerBound":false},"revision":"b1f699fe7fc34eee0c767fa8c1055b888737cc6e1fdf00cf48ba975611405104"},{"id":"ZIECBW0:2024-11-12","date":"2024-11-12","commune":"25107","communeName":"Villers-la-Ville","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZIECBW0"],"sum20":{"value":0.016,"valueText":"0,016","unit":"µg/L","nonDetect":false,"lowerBound":false},"pfas4":{"value":0.003,"valueText":"0,003","unit":"µg/L","nonDetect":false,"lowerBound":false},"revision":"135e56e31a5a90313f0a47f9f9a5cf862c0061d5998da9f8e57b77f5a72f4fd3"},{"id":"ZIECBW23:2024-10-09","date":"2024-10-09",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