Lumkela iintlanzi ezivela kumachibi nakwimilambo, zinePFAS. Oku kungaphantsi okanye ngaphantsi kwe-alamu ephakanyiswe liSebe leMithombo yeNdalo (i-DNR) yaseWisconsin kunye neenkonzo zempilo (i-DHS) ezithe zakhupha isilumkiso esitsha esithintela ukusetyenziswa kweentlanzi.
Ngokusekwe kwiziphumo zeesampulu zamva nje, i-DNR kunye ne-DHS babongoza abemi ukuba banciphise iintlanzi ezininzi kangangoko kunokwenzeka kwimilambo nakumachibi eedolophu zaseDane naseRock. La manzi aquka iWingra Creek, iStarkweather Creek, iLake Monona, iLake Waubesa, iLake Upper kunye neLower Mud Lakes, iLake Kegonsa, kunye noMlambo iYahara ezantsi apho udibana khona neRock Rock.
Ngokukodwa, iiarhente zikarhulumente ezimbini zicebisa ukuba kungabikho kutya okungaphezulu kwesinye ngenyanga ye-crappie, i-largemouth bass, i-trout, i-pike esemantla kunye ne-walleye kuloo manzi. Kwezinye iintlobo, nangona kunjalo, ukusetyenziswa kwakulinganiselwe kube kanye ngeveki.
Iisampulu zibonise amanqanaba aphezulu e-perfluorooctane sulfonate, okanye I-PFOS, kwiintlobo ngeentlobo zeentlanzi eziqokelelwe kumachibi aseMonona, eKegonsa naseWaubesa. Iikhemikhali yenye yezona zinto ziphononongwa kakhulu zii-PFAS, kwaye yaziwa ngokuqokelela uninzi lweentlobo ezithile. Kuthetha ukuba amanqanaba e-PFOS ngaphakathi kwentlanzi asusela kwi-16,9 yezigidigidi ngezigidigidi ukuya kwi-72,4 yeebhiliyoni, ngokweedatha ebonelelwe yi-DNR. Ezinye iintlanzi, ezinje nge-bouthmouth bass, zazinokufikelela okuphezulu ukuya kuthi ga kwinxalenye ezili-180 ngebhiliyoni.
Khumbula ukuba i-PFAS liqela leekhemikhali ezenziwe ngabantu ezisetyenzisiweyo kwiimveliso ezininzi amashumi eminyaka, kubandakanya i-non-stick cookware, izisongelo zokutya okukhawulezayo, izikhongozeli zokutya, iitafile zeplastikhi, izitshizi ezinganyangekiyo, kunye nolunye uhlobo lwegwebu lokulwa nomlilo . Ezi zinto zingcolileyo zingene kwindalo esingqongileyo ngeendlela ezahlukeneyo, kubandakanya ukuchitheka kwezinto eziqulethwe yi-PFAS, ukukhutshwa kwamanzi amdaka kwiPFAS kwizityalo zonyango, kunye nokusetyenziswa kweentlobo ezithile zamagwebu okulwa umlilo. I-DNR icacisa ukuba
izazinzulu zisafunda malunga neziphumo zempilo. Inani elikhulu lezifundo ebantwini livavanye ubudlelwane obunokubakho phakathi kwamanqanaba e-PFAS egazini kunye neziphumo ezibi zempilo ebantwini. Nangona kunjalo, uninzi lwezi Imfundo kuhlalutywa kuphela inani elincinci leekhemikhali kwaye ayizizo zonke i-PFAS ezineziphumo ezifanayo. Olu phando lubonisa ukuba amanqanaba aphezulu e-PFAS anokunyusa amanqanaba e-cholesterol, anciphise ukusebenza kwakhona kwizitofu zokugonya, kunye nokunciphisa ukuchuma kwabasetyhini, phakathi kwabanye.
Isampulu yomphezulu wamanzi kunye neentlanzi ezivela kuluhlu lweYahara yinxalenye yephulo elibanzi le-DNR lokuqonda ngcono iPFAS kwindalo esingqongileyo eWisconsin.
Kwi-2019, iisampulu zamanzi angaphezulu komhlaba zaqokelelwa eStarkweather Creek naseLake Monona, zombini ezazingcolisiwe zezi zinto. Iisampulu zeethishu zentlanzi nazo zithathiwe eStarkweather Creek naseLake Monona ezibonisa amanqanaba aphezulu e-PFOS, ekhokelele kwisilumkiso sokusetyenziswa esikhutshwe yi-DNR kunye ne-DHS kwangoko kunyaka ophelileyo ngoJanuwari 2020 weentlanzi ezibanjisiweyo.
Ngelishwa, ayisiyonto intsha. Kungenxa yoko le nto imeko yaseWisconsin inyusa ulawulo. Izigidi ezingama-20 zeedola zabelwe ukujonga kunye nokuvavanya i-PFAS kodwa nokubonelela ngoncedo kunye nezixhobo kuluntu lwasekhaya oluchaphazeleka kolu hlaselo loyikisayo.
Funda amanqaku ethu PFAS
Imithombo yesalathiso: ISebe leWisconsin leMithombo yeNdalo kunye neSebe lezeMpilo laseWisconsin
FUNDA kwakhona:
- I-PFAS kwitafile yecompostable kwii-canteens, kodwa hayi kwi-Mater-Bi: INovamont iyakuqinisekisa
- Iimvula ze-Pfas kwi-American Great Lakes: iingozi kwezempilo
- I-Pfas ikwindawo yokucocwa kwendlu esekwe kwilindle, isifundo
- I-Pfas kubisi lwebele: isifundo esitsha sibonisa ukungcoliseka kwendalo iphela kunye nexhala
