Iyo tsvuku X inoratidza iyo Yekudzidzira Moto Nzvimbo paNaval Research Laboratory - Chesapeake Bay Detachment. Iyo bhuruu X ndiyo nzvimbo yeoyster yakaedzwa neKuta yeChesapeake Beach.
NePat Elder, MasojaPoil.org, August 12, 2021
Guta reChesapeake rakaburitsa zvakavhundutsa bvunzo mhedzisiro muna Nyamavhuvhu 10, 2021 yePFAS muoysters, hove, uye sewer sludge. Iyo yepazasi pane yaitarisirwa 1,060 ppt yePFAS yakataurwa muoysters yaityisa nekuti mabivalves akaedzwa aibva kunzvimbo 23 mamaira kure, mune imwe yenzvimbo dzakatenderedza dzakatenderedza dzeChesapeake Bay. Zvichakadaro, perch yakabata tsoka chiuru kubva kumahombekombe kweNaval Research Laboratory - Chesapeake Bay Detachment (NRL-CBD) yakawanikwa iine 1,000 ppt yechepfu, nepo rockfish yaive ne9,470 ppt. Nyika zhinji dzinogumira PFAS mumvura yekunwa kuenda ku2,450 ppt, kunyangwe Maryland isiri kudzora zvinhu.
Kushanda kushoma kwepan-fried perch kubva kuCheesapeake Bay inogona kurema maiza mana kana gumi negumi negumi. Kana iyo filet yehove iine zvikamu mazana mana nemazana mana nemakumi matatu emakumi matatu ematirioni ePFAS, ndiwo zvikamu makumi mapfumbamwe ane makumi mapfumbamwe nezvina zvemabhirioni, izvo zvakafanana ne4 nanograms pagiramu. (ng / g)
Saka, 9.47 ng / gx 113 g = 1,070 ng. Iyo 4-ounce inoshumira ine 1,070 nanograms ePFAS. Tichati mana maunzi ehove iyi inonaka inopihwa kune makore mashanu ekuberekwa anorema mapaundi makumi mashanu.
European Food Safety Authority (EFSA) yakagadza Tolerable Weekly Intake (TWI) yemwana anorema mapaundi makumi mashanu (50 kilos) kuma nanograms zana pasvondo remakemikari mana ePFAS, kusanganisira PFOS.
Maawa mana eiyo puru ine 1,070 ng yePFAS yakakurisa kagumi pane yeEuropean pavhiki muganho wemwana wedu. Iyo perch ine chepfu. Izvo hazviuraye mwana, asi zvinogona kumuita kuti arware nekufamba kwenguva.
Madhipatimendi eMadganis eHutano neZvakatipoteredza haana hany'a nevaMadganis vanodya huturu uhu kubva pachikamu chidiki chehove. Vakadzi vane nhumbu kana vanogona kuve nepamuviri havafanire kudya chipenga chakabatwa mukati mepedyo neNaval Research Laboratory - Chesapeake Bay Detachment. Izvo zviri kukurumidza kuve pachena kuti havafanirwe kudya chero hove kubva chero kupi mubhara - uyezve hakuna mumwe munhu.
Mhedzisiro yemabvunzo yakaburitswa neKuta yeChesapeake Beach yakaratidzawo iyo "yakarapwa" mvura yemuzvimbudzi yaigara ichiburitswa mubhawa kubva mutaundi yakawanikwa iine 506.9 ppt ye "zvachose makemikari". Perfluoropentanoic Acid (PFPeA), musoja / maindasitiri anoshanda akawandisa kushatiswa. Chesapeake Beach inogamuchirawo simba kubva kuDhorobha reNorth Beach, uye chikamu chidiki chekumaodzanyemba kweAnne Arundel County. Mhando dzese dzePFAS dzinofungidzirwa kuti dzinokuvadza, nepo nzira yekutanga yekumedza kwevanhu iri kuburikidza nekudya hove kubva kune yakasviba mvura.
Guta reChesapeake Beach rakaburitsa chirevo ichi:
“Nyamavhuvhu 10, 2021 (Chesapeake Beach, MD) - Guta reChesapeake Beach riri kuenderera mberi nekubatana pamwe nedhipatimendi reMaryland reZvakatipoteredza neUnited States Navy maererano nekudzikisira kuedza kuNavy Research Laboratory - Chesapeake Bay Detachment.
Muna Chivabvu wa2021, Guta rakazivisa kuti mvura yekunwa kweTown haina kana pe-uye polyfluoroalkyl zvinhu (PFAS). Miedzo yakaitwa pamatsime ese eTown ekunwa, ayo anotora kubva kuAquia Aquifer.
Kunze kwekuyedza mvura yekunwa yeKutaundi, Dhorobha rakatora mamwe matanho kuyedza mvura yekushambira yeKuta, hupenyu hwemumvura hwemuno uye mvura yemvura yeChesapeake Beach Water Reclamation (WRTP) yezvinhu zve per-uye polyfluoroalkyl (PFAS). ”
Kunyangwe hazvo dhorobha richiti rakaedza "hupenyu hwemumvura hwemuno", mushumo weoyster wakagadzirirwa neEurofins Environment Testing America, yemusi wa8 / 4/21, yaisanganisira makonati eGPS e3842.084. 7630.601 iyo inonongedzera kunzvimbo ye bay iri 23 mamaira SSE kubva kuChesapeake Beach, 1 mamaira kubva kuSt. John Creek kuEastern Shore yeMaryland, padyo neTaylor's Island Wildlife Management Area Iyo saiti ingangoita 5.5 kumabvazuva kweCove Point Light House uye inoonekwa seimwe yenzvimbo dzakajeka kwazvo munzvimbo yeChesapeake. Ona iyo Mushumo weEurofins Oyster yakaburitswa neguta.
Iyo Rockfish nePerch yakaunganidzwa pa3865.722, 7652.5429, iyo inowanikwa anenge chiuru mamaira kumahombekombe kubva kuNRL-CBD. Ona iyo Mushumo weHove weEurofins yakaburitswa neguta.
Mukushamisa kusinganzwisisike, oyster uye hove mishumo yakagadzirirwa neEurofins yakaitwa pachinzvimbo chemutengi:
PEER
8200 Bayside Rd.
Chesapeake, Maryland 20732
Attn: Holly Wahl
VEERERI ipfupi kune Vashandi veVoruzhinji veKuchengetedzwa Kwemagariro, rinotungamira sangano rezvakatipoteredza rakavakirwa muSilver Spring, Maryland iyo inodzivirira varidzi vemiridzo uye inopenya mwenje wezviito zvisiri pamutemo zvehurumende. Tim Whitehouse, Executive Director ve PEER vakati agency yavo "yanga isingabatanidzwe" mukumisikidza mushumo.
Guta reChesapeake Beach rinoti "rinoenderera mberi nekubatana pamwe neMaryland Dhipatimendi reZvakatipoteredza uye neUnited States Navy maererano nemabasa ekuderedza paNavy Research Laboratory - Chesapeake Bay Detachment" uye izvi zviri pachena.
Zvinosuruvarisa, hapana ari kudzikisira makemikari mune zvakatipoteredza. Panzvimbo iyoyo, ivo vari kuyedza kudzikisira kunetseka kweruzhinji maererano nekusvibiswa kweNavy kweChesapeake Bay. DOD kudzikisira ipfungwa yakatakurwa. Rezinesi kune chepfu rinowanikwa kuburikidza nekumanikidza, kutsigira, uye nekushambadzira.
Pakakwira huwandu hwePFAS mumvura yeSt.Inigoes Creek padhuze neWebster Field Annex yePatuxent River Naval Air Station munaFebruary, 2020, Ira May, uyo inotarisira federal saiti kuchenesa for the Maryland Department of the Environment, yakaratidza kuti kusvibiswa murukova, "kana kuripo", kunogona kuve neimwe sosi. Iwo makemikari anowanzo kuwanikwa munzvimbo dzekudyara, akadaro, pamwe nemuma biosolid uye kune nzvimbo uko madhipatimendi emoto ehurumende akapfapfaidza furo.
Kusevha kwepadyo kusvika pakushandiswa kusingaperi kwePFAS-yakasungwa furo yekudzimisa moto pachigadziko iri mairi mamaira gumi neiri apo imba yemoto yewadhiropu iri mamaira mashanu kure.
"Saka, pane zvakawanda zvinogona kuwanikwa," akadaro May. "Tangori kutanga kwekutarisa ese ayo." Uye vachiri pakutanga.
Maryland mukuru wezvemamiriro ekunze ari kufukidza iyo DOD. MaNavy akazotaura 84,756 ppt yePFAS mumvura yepasi paWebster Field, yakananga kurukova.
Pane humwe humbowo hwekuwedzeredzwa kweMadganine maererano nePFAS muhupenyu hwemuChesapeake hwemvura. MunaGunyana 2020, iyo Maryland Dhipatimendi reZvakatipoteredza (MDE) yakaburitsa mushumo wakanzi "St. Mary's River Pilot Kudzidza kwePFAS Kuitika muSurface Mvura uye Oysters. ” (PFAS Pilot Kudzidza) iyo yakaongorora iwo mazinga e-uye-poly fluoroalkyl zvinhu (PFAS) mumvura yegungwa uye maoyster. Kunyanya, iyo PFAS Pilot Study yakagumisa kuti kunyangwe PFAS iripo mumvura ine turu yeRwizi rwaMary, zvimiro zvacho "zviri pazasi pengozi zvine chekuita nekutandara nzira dzekuongorora uye oyster yekushandisa saiti-yakatarwa nzira yekutarisa."
Nepo chirevo ichi chichiita mhedziso yakafara, nzira dzekuongorora uye hwaro hwemaitiro ekuongorora anoshandiswa neMDE hazvina chokwadi, zvichikonzera kutsausa vanhu, uye nekupa inonyengera uye yekunyepa pfungwa yekuchengetedza.
Mhedziso yeMDC pamusoro-inosvika kune zvinonzwisisika zvakawanikwa zvichibva pane iyo chaiyo data yakaunganidzwa uye inoperevedza inogamuchirwa yesainzi uye indasitiri zviyero pamatanho akati wandei. Iyo PFAS Pilot Study yakaedzwa uye yakashumwa pamusoro pekuvapo kwePFAS mune oyster tishu. Kuongorora kwakaitwa neAlfa Analytical Laboratory yeMansfield, Massachusetts.
Bvunzo dzakaitwa neAlfa Analytical Laboratory dzaive nemuganhu wekuona oysters pane microgram imwe pakirogiramu (1 /g / kg) inoenzana nechikamu chimwe chete pabirioni, kana zvikamu chiuru patirioni. (ppt.) Nekudaro, sezvo yega yega PFAS inoonekwa zvakasiyana, nzira yekuongorora yakashandiswa haina kukwanisa kuona chero imwe PFAS iripo pamari isingasviki zviuru zve1 patirioni. Kuvapo kwePFAS kunowedzera; nokudaro, zviyero zvechikamu chimwe nechimwe zvinowedzerwa kuti zvisvike kune yakazara PFAS iripo mune samuenzaniso. Kusungirirwa kunogona kudarika zviuru nezviuru zvezvikamu kumatirioni ehumwe mune oyster apo nyika ichiti "Hapana Detect".
Iyo MDE iri kuvhara iyo Navy nepo Guta reChesapeake Gungwa risina munyengetero kunyangwe ikafunga kuve mutambi akatendeseka.
Pazasi pane zvakawanikwa kubva kuoyster uye zvidzidzo zvehove, zvichiteverwa nePFAS kuongororwa nePace Analytical yemvura yakasviba kubva kuChesapeake Beach Water Reclamation Treatment Plant, (WRTP). Mvura inoyerera inodururirwa mubhawa mushure mekurapwa. Makemikari ePFAS haabviswe kubva kune marara mune yekurapa maitiro.
Oyster
PFOA - Perfluorooctanoic acid 180 ppt JB *
PFOS - Perfluorooctanesulfonic acid 470 ppt J
PFOSA - Perfluorooctanesulfonamide 410 ppt J
Dzose 1,060
===========
Perch
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
Yakazara 9,470 ppt
==========
Rockfish (Yakabvarurwa Bass)
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
Yakazara 2,450 ppt
===============
J - kutarisisa kukosha kwekufungidzira; B - mukomboni yakawanikwa mune isina chinhu uye muyenzaniso.
Dhorobha reChesapeake Mvura Yemvura Yekudzosera Mushonga
Mhedzisiro Yemhedzisiro yePFAS
Mvura Yakaunganidzwa 06/10/2021
Pace Ongororo
Chesapeake Gungwa, MD
Muenzaniso Ongororo Pfupiso PFAS neIsotope Dilution Mutengi
PFAS Kuisa pfungwa
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
Yakazara 506.9 ppt
==============
MunaMay 2021, maNavy akazivisa kuti saiti yeNRL-CBD yaive nematanho ePFAS muvhu repasi pevhu zvinopfuura mamirioni masere matriliyoni, pamwe akanyanya mwero chero pasi. Huwandu hwehutachiona hunogona kuvimbisa kuenderera nekusvibiswa kwenzvimbo kwezviuru zvemakore. Rukova runosiya chigadziko rwakawanikwa riine 8 ppt yehupfu apo mvura yepasi yakaonekwa pakukwira kwe5,464 ppt. Iko kusvibiswa kwevhu, pamusoro pemvura, uye mvura yepasi pevhu zvaive zvakazara kubva kuPFOS, zvine hungwaru mhando dzakasiyana dzinouraya dzePFAS. Dhipatimendi reWisconsin reMamiriro ekunze rinoti hutano hwevanhu hunowanikwa panjodzi apo mvura yepamusoro inodarika 171,000 ppt yePFOS, nekuda kweiyo bioaccumulative hunhu hwePFOS muhove. Matunhu mazhinji anoderedza huwandu hwepasi pemvura kusvika makumi maviri ppt, kunyangwe isiri Maryland.
