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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":"2025-12-15T00:00:00Z","sampleId":"ZW1178:2025-12-15","nonDetect":true,"upperBound":0.02},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","limit":0.004,"limitUnit":"µg/L","status":"ok","sampleDate":"2025-12-15T00:00:00Z","sampleId":"ZW1178:2025-12-15","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":"ZW1178:2025-12-15","date":"2025-12-15","commune":"53014","communeName":"Boussu","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1178"],"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":"c53038d5694e926d72da9e4fce2a6621854eec7aca6ab7986ef04ca4ec728131"},{"id":"ZW1178:2025-06-18","date":"2025-06-18","commune":"53014","communeName":"Boussu","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1178"],"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":"be399a99ab7ffd838106dcbbcdfee68de1ff130c622281025cac4e4ae5f54981"},{"id":"ZW1128:2025-02-04","date":"2025-02-04","commune":"53014","communeName":"Boussu","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1128"],"sum20":{"value":null,"valueText":"<0,027","unit":"µg/L","nonDetect":true,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","nonDetect":true,"lowerBound":false},"revision":"624cf83bb598208b097e428cb962d04b6f8275434e31e206fbc36a9f16259973"},{"id":"ZW1178:2025-01-09","date":"2025-01-09","commune":"53014","communeName":"Boussu","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1178"],"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":"a9d6f6b091423143c1ffab45ad4649aa24c16511c33dac7da42cf7fd7cea24e4"},{"id":"ZW1178:2024-11-28","date":"2024-11-28","commune":"53014","communeName":"Boussu","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1178"],"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":"42295c748ccad387e5aebe5644489bd0c9c0f407f052db00fe59de46494f4460"},{"id":"ZW1128:2024-08-30","date":"2024-08-30","commune":"53014","communeName":"Boussu","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1128"],"sum20":{"value":null,"valueText":"<0,025","unit":"µg/L","nonDetect":true,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004","unit":"µg/L","nonDetect":true,"lowerBound":false},"revision":"73d58df5183aaec07dbc34a8781dd51134339ec556112e26a1b95358b625f1d9"},{"id":"ZW1178:2024-06-28","date":"2024-06-28","commune":"53014","communeName":"Boussu","sourceUrl":"https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas","networks":["ZW1178"],"sum20":{"value":null,"valueText":"<0,025","unit":"µg/L","nonDetect":true,"lowerBound":false},"pfas4":{"value":null,"valueText":"<0,004",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