Gaduudka X wuxuu muujinayaa Aagga Tababbarka Dabka ee Shaybaarka Cilmi -baarista Badda - Chesapeake Bay Detachment. Buluugga X waa meesha uu ku jiro oyster -ka lagu tijaabiyey Magaalada Chesapeake Beach.
By Pat Elder, MilitaryPoisons.org, August 12, 2021
Magaalada Chesapeake waxay sii deysay natiijooyin tijaabo naxdin leh Ogosto 10, 2021 loogu talagalay PFAS ee kaymaha, kalluunka, iyo wasakhda bullaacadaha. Wax ka hooseeya intii la filayay 1,060 ppt ee PFAS ee lagu soo warramey oysters -ka ayaa ahaa mid laga naxo maxaa yeelay bivalves -ka la tijaabiyey waxay ka yimaadeen meel 23 mayl u jirta, mid ka mid ah meelaha ugu bey'adda wanaagsan ee Chesapeake Bay. Dhanka kale, xashiishku wuxuu qabsaday 1,000 fuudh xeebta Shaybaarka Cilmi-baarista Badda-Chesapeake Bay Detachment (NRL-CBD) ayaa la ogaaday inay ku jirto 9,470 ppt sunta ah, halka kalluunka dhagaxu uu leeyahay ururo dhan 2,450 ppt. Gobolo badan ayaa ku xaddida PFAS biyaha la cabbo ilaa 20 ppt, in kasta oo Maryland aysan nidaamin walxaha.
Cunto yar oo kalluun la shiilay oo laga soo qaaday Chesapeake Bay ayaa miisaami karta 4 wiqiyadood ama 113 garaam. Haddii fiiliga kalluunku ka kooban yahay 9,470 qaybood halkii tiriliyan ee PFAS, taasi waa 9.47 qaybood halkii bilyan, taas oo la mid ah 9.47 nanogram garaamkiiba. (ng/g)
Marka, 9.47 ng/gx 113 g = 1,070 ng. Adeegga 4-wiqiyadood waxaa ku jira 1,070 nanogram oo PFAS ah. Waxaan dhihi doonaa 4 wiqiyadood oo kalluunkan dhadhan fiican leh ayaa la siiyaa cunug shan jir ah oo miisaankiisu yahay 50 rodol.
Hay'adda Badbaadada Cuntada ee Yurub (EFSA) waxay u dejisay Qaadashada Toddobaadlaha ee loo Dulqaadan karo cunug culeyskiisu yahay 50 rodol (22.6 kiilo) 100 nanogram toddobaadkii afar kiimiko oo PFAS ah, oo ay ku jirto PFOS.
Afar wiqiyadood oo bakhti ah oo ay ku jirto 1,070 ng ee PFAS ayaa 10 jeer ka weyn tan reer Yurub todobaadle xadka ilmahayaga. Baranjaanku waa sun. Uma dili doono ilmaha, laakiin waxay u badan tahay inay ku xanuuniso mustaqbalka fog.
Waaxyaha Caafimaadka iyo Deegaanka ee Maryland kuma mashquulaan Marylanders -ka cunaaya sunkan badan oo ka mid ah qayb yar oo kalluun ah. Dumarka uurka leh ama laga yaabo inay uur qaadaan waa inaysan cunin bakhshiish lagu qabtay meel u dhow shaybaarka baarista badda - Chesapeake Bay Detachment. Waxaa si dhakhso ah u soo ifbaxaya inayan cunin wax kalluun ah meel kasta oo ka mid ah gacanka - sidoo kale qofna waa inuusan cunin.
Natiijooyinka tijaabada ee ay sii deysay Magaalada Chesapeake Beach ayaa sidoo kale muujisay “bulaacadaha” biyaha bulaacada oo si joogto ah loogu sii daayo gacanka magaalada waxaa laga helay inay ku jiraan 506.9 ppt ee “kiimikooyinka weligood ah”. Perfluoropentanoic Acid (PFPeA), oo ah milatariga/ wax -soo -saarka wershedaha ayaa tiriyay inta badan faddarada. Xeebta Chesapeake waxay kaloo ka heshaa saamayn Magaalada Waqooyiga Xeebta, iyo qayb yar oo ka tirsan Koonfurta Anne Arundel County. Dhammaan noocyada PFAS waxaa loo malaynayaa inay waxyeello leeyihiin, halka dariiqa koowaad ee cunista dadku ay tahay cunista cuntada badda ee biyaha wasakhaysan.
Magaalada Xeebta Chesapeake ayaa soo saartay bayaankan:
“Ogosto 10, 2021 (Chesapeake Beach, MD)- Magaalada Chesapeake Beach waxay sii wadaa inay la shaqeyso Waaxda Deegaanka ee Maryland iyo Ciidanka Badda Mareykanka ee ku saabsan dadaallada yareynta ee Shaybaarka Cilmi-baarista Badda- Chesapeake Bay Detachment.
Bishii Maajo ee 2021, Magaaladu waxay ku dhawaaqday in biyaha la cabbo ee Magaaladu aysan lahayn raadadka walxaha per-iyo polyfluoroalkyl (PFAS). Tijaabooyin ayaa lagu sameeyay dhammaan ceelashii cabbitaanka ee Magaalada, kuwaas oo laga soo qaaday Aquia Aquifer.
Ka sokow tijaabinta biyaha la cabbo ee Magaalada, Magaaladu waxay qaadday tillaabooyin dheeri ah si ay u tijaabiso biyaha dabaasha ee Magaalada, nolosha biyaha maxalliga ah iyo Soo-celinta Biyaha Chesapeake Beach (WRTP) ee qulqulka walxaha hal-iyo-polyfluoroalkyl (PFAS). ”
In kasta oo ay magaaladu sheegto inay tijaabisay “nolosha biyaha deegaanka”, warbixinta oyster -ka oo ay diyaarisay Eurofins Testing America, taariikhdu markay ahayd 8/4/21, waxaa ku jiray isku -duwayaasha GPS ee 3842.084. 7630.601. Goobtu waa qiyaastii 23 bariga Cove Point Light House waxaana loo arkaa inay tahay mid ka mid ah meelaha ugu wanaagsan ee gobolka Chesapeake. Eeg Warbixinta Oyster Eurofins laga sii daayay magaalada.
Rockfish iyo Perch waxaa lagu soo ururiyey 3865.722, 7652.5429, oo ku yaal qiyaastii 1,000 fuudh xeebta NRL-CBD. Eeg Warbixinta Kalluunka ee Eurofins laga sii daayay magaalada.
Si qalloocan, warbixinnada oyster -ka iyo kalluunka ee ay diyaariyeen Eurofins ayaa lagu sameeyey macmiilka:
RAADI
8200 Bayside Rd.
Chesapeake, Maryland 20732
Xigasho: Holly Wahl
PEER wuxuu u gaaban yahay Shaqaalaha Dadweynaha ee Masuuliyadda Deegaanka, oo ah hay'ad hoggaamineed oo deegaanka ah oo fadhigeedu yahay Silver Spring, Maryland oo difaacda dadka wax sheega oo iftiiminaya ficillada dawladda sharci -darrada ah. Tim Whitehouse, Agaasimaha Fulinta ee PEER ayaa sheegay in hay'addiisu "aysan lug ku lahayn" gudbinta warbixinta.
Magaalada Xeebta Chesapeake waxay leedahay “waxay sii wadaysaa inay la shaqayso Waaxda Deegaanka ee Maryland iyo Ciidanka Badda Mareykanka ee ku saabsan dadaallada yareynta shaybaarka Cilmi -baarista Badda - Kala -bax Chesapeake Bay” tanina aad bay u caddahay.
Nasiib darrose, ma jiro qof yareynaya kiimikooyinka ku jira deegaanka. Taa bedelkeeda, waxay isku dayayaan inay yareeyaan welwelka dadweynaha ee ku saabsan sumaynta Badda ee Chesapeake Bay. Dhimista DOD waa fikrad raran. Ruqsadda sunta waxaa lagu helaa dacaayad khasab ah, joogto ah, oo waxtar leh.
Markii heerar sare oo PFAS ah laga soo sheegay biyaha St. Inigoes Creek ee ku dhegan Lifaaqa Goobta Webster ee Saldhigga Hawada ee Badda Patuxent River bishii Febraayo, 2020, Ira May, oo kormeera federaalka nadiifinta goobta loogu talagalay Waaxda Bay'ada ee Maryland, waxay soo jeedisay in faddaraynta godka, "haddii ay jirto", ay yeelan karto il kale. Kiimikooyinka ayaa inta badan laga helaa qashin -qubka, ayuu xusay, iyo sidoo kale biosolids -ka iyo goobo ay waaxaha dab -damiska rayidka ku buufiyeen xumbo.
Qashin-qubka ugu dhow ee isticmaalka joogtada ah ee xumbo dab-damis ah oo PFAS-ku dahaadhay saldhigga ayaa 11 mayl u jira halka dab-damiska armaajadu u jiro 5 mayl.
"Marka, waxaa jira ilo badan oo suurtagal ah," ayay tiri May. "Waxaan hadda uun nahay bilowga inaan eegno kuwaas oo dhan." Iyaguna wali waa bilowgii.
Sarkaalka ugu sarreeya deegaanka ee Maryland ayaa ka warramaya DOD. Ciidanka Badda ayaa markii dambe soo sheegay 84,756 ppt oo PFAS ah oo ku jira biyaha dhulka ee Webster Field, kuna sii jeeda jiinka.
Waxaa jira caddeymo dheeri ah oo ku saabsan baabi'inta Maryland ee ku saabsan PFAS nolosha biyaha Chesapeake. Bishii Sebtember 2020, Waaxda Deegaanka ee Maryland (MDE) ayaa soo saartay warbixin cinwaankeedu yahay “St. Daraasadda Duuliyaha Wabiga Mary ee Dhacdada PFAS ee Biyaha Dhulka iyo Oysters -ka. ” (Daraasadda Duulista ee PFAS) kaas oo falanqeeyay heerarka walxaha per-iyo poly fluoroalkyl (PFAS) ee biyaha bada iyo lohodka. Gaar ahaan, Daraasadda Duulista ee PFAS waxay soo gabagabeysay in kasta oo PFAS ay kujirto biyaha qulqulaya ee wabiga St. Mary, isku soo uruurintu "waxay si aad ah uga hooseeyaan halista ku saleysan shuruudaha baaritaanka isticmaalka madadaalada iyo shuruudaha baaritaanka gaarka ah ee goobta lo'da."
In kasta oo warbixintu ka dhigan tahay gunaanadkan ballaadhan, hababka gorfeynta iyo aasaaska shuruudaha baaritaanka ee ay adeegsatay MDE ayaa su'aal ka taagan tahay, taasoo keentay marin habaabinta dadweynaha, iyo bixinta khiyaano iyo dareen nabadgelyo oo been ah.
Gabagabadii MDE si xad dhaaf ah u gaara natiijooyinka macquulka ah oo ku salaysan xogta dhabta ah ee la ururiyey oo ka hoosaysa heerarka sayniska iyo warshadaha ee la aqbali karo ee dhowr dhinac. Daraasadda Duuliyaha PFAS ayaa tijaabisay oo ka warbixisay jiritaanka PFAS ee unugyada oyster. Falanqaynta waxaa sameeyay Shaybaarka Falanqaynta Alpha ee Mansfield, Massachusetts.
Tijaabooyinkii ay sameeyeen Shaybaadhka Falanqaynta ee Alfa ayaa lahaa xaddid lagu ogaanayo oysters hal microgram halkii kiilo (1 µg/kg) oo u dhiganta 1 qayb bilyan kasta, ama 1,000 qaybood halkii tirilyan. (ppt.) Sidaas awgeed, maaddaama xarun kasta oo PFAS ah si gaar ah loo ogaado, habka gorfaynta ee la shaqeeyay ayaa awoodi waayay inuu ogaado mid ka mid ah PFAS oo jooga qaddar ka yar 1,000 qaybood halkii tiriliyan. Joogitaanka PFAS waa wax lagu daro; markaa, xaddiga xarun kasta ayaa lagu daraa si loo gaaro wadarta PFAS ee ku jirta muunad. Xoog -saaristu waxay dhaafi kartaa dhowr kun oo qaybood halkii tirilyan oo sun ah oo ku jirta loyste halka gobolku soo sheegayo "Lama Oga".
MDE waxay daboolaysaa Ciidanka Badda halka Magaalada Chesapeake Beach aysan lahayn duco xitaa haddii ay go'aansatay inay noqoto ciyaartoy daacad ah.
Hoos waxaa ku yaal natiijooyinka ka soo baxay oyster -ka iyo daraasadaha kalluunka, oo ay ku xigto falanqaynta PFAS oo ay samaysay Pace Analytical ee biyaha qulqulaya ee ka soo baxay Warshadda Daaweynta Dib -u -soo -kabashada Biyaha Chesapeake Beach, (WRTP). Biyo waxtar leh ayaa lagu shubaa gacanka kadib markii la daweeyo. Kiimikooyinka PFAS lagama saaro dheecaanka habka daaweynta.
Oyster
PFOA - Perfluorooctanoic acid 180 ppt JB*
PFOS - Perfluorooctanesulfonic acid 470 ppt J
PFOSA - Perfluorooctanesulfonamide 410 ppt J
Wadarta 1,060
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Sababta
PFOS - Perfluorooctane sulfonic acid 7,400 ppt
PFOA - Perfluorooctanoic acid) 210 ppt JB
PFNA Perfluorononanoic acid) 770 ppt
PFDA Perfluorodecanoic acid) 370 ppt JB
PFHxS Perfluorohexane sulfonate) 210 ppt J
PFUnDA Perfluoroundecanoic acid) 510 ppt J
Wadarta 9,470 ppt
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Rockfish (Bass la karbaashay)
PFOS - Perfluorooctanesulfonic acid 1,200 ppt
PFHxA - Perfluorohexanoic acid 220 ppt JB
PFOA - Perfluorooctanoic acid 260 ppt JB
PFDA - Perfluorodecanoic acid 280 ppt JB
PFOSA - Perfluorooctanesulfonamide 200 ppt J
PFUnDA - Perfluoroundecanoic acid 290 ppt J
Wadarta 2,450 ppt
====================
J - fiirsigu waa qiime qiyaas ah; B - isku -darka ayaa laga helay bannaan iyo muunad.
Magaalada Chesapeake Warshadda Dib -u -Celinta Biyaha Xeebta
Natiijooyinka waxtarka leh ee PFAS
Biyaha La Ururiyey 06/10/2021
Falanqaynta Xawaaraha
Xeebta Chesapeake, MD
Sample Falanqaynta Tusaalaha PFAS oo ay leedahay Macmiilka Dhimista Isotope
PFAS Urursanaanta
PFPeA - Perfluoropentanoic acid 350 ppt
PFBA - Perfluorobutyrate 13
PFBS - Perfluorobutanesulfonic acid 11
PFHxA - Perfluorohexanoic acid 110
PFHpA - Perfluoroheptanoic acid 6.4
PFHxS - Perfluorohexane sulfonate 2.3
PFOA - Perfluorooctanoic acid 11
PFOS - Perfluorooctanesulfonic 3.2
Wadarta 506.9 ppt
==============
Bishii Maajo 2021, Ciidanka Badda ayaa ku dhawaaqay in goobta NRL-CBD ay leedahay heerarka PFAS ee ciidda dhulka hoostiisa ka badan 8 milyan oo qaybood halkii tirilyan, laga yaabee heerarka ugu sarreeya meel kasta oo dhulka ah. Baaxadda faddarayntu waxay u badan tahay inay hubiso wasakhaynta sii socota ee gobolka kumanaan sano. Dooxada ka baxaysa saldhigga ayaa la ogaaday in ay leedahay 5,464 ppt sunta ah halka biyaha dhulka hoostiisa lagu ogaaday 171,000 ppt. Faddaraynta ciidda, biyaha dushiisa, iyo biyaha dhulka hoostiisa ayaa gebi ahaanba ka yimid PFOS, oo lagu doodi karo noocyada ugu dhimashada badan ee PFAS. Waaxda Deegaanka Wisconsin ayaa sheegtay in caafimaadka bini’aadamka uu halis ku jiro marka biyaha dushu ka badato 2 ppt oo PFOS ah, sababtuna waa dabeecadda noole ee PFOS ee kalluunka. Dawlado badan ayaa xaddida biyaha dhulka hoostiisa ilaa 20 ppt, inkasta oo aanay ahayn Maryland.
