Red X na -egosi mpaghara Ọkụ Ọkụ na Laboratory Research Naval - Chesapeake Bay Detachment. Blue X bụ ebe oporo nwalere obodo Chesapeake Beach nwalere.
Site na Pat Elder, MilitaryPoisons.org, August 12, 2021
Obodo Chesapeake wepụtara nsonaazụ ule dị egwu na Ọgọst 10, 2021 maka PFAS na oporo, azụ, na nsị mmiri. Ihe dị ala karịa atụ anya 1,060 ppt nke PFAS nke a kọrọ na oysters bụ ihe na -emenye ụjọ n'ihi na ndị bivalves a nwalere sitere na ebe dị kilomita 23, n'otu n'ime mpaghara kachasị mma gburugburu Chesapeake Bay. Ka ọ dị ugbu a, perch jidere ụkwụ 1,000 site n'ikpere ụlọ nyocha Naval Research Laboratory-Chesapeake Bay Detachment (NRL-CBD) nwere 9,470 ppt nke nsị, ebe azụ azụ nwere mkpokọta 2,450 ppt. Ọtụtụ steeti na -amachi PFAS na mmiri ọ drinkingụ drinkingụ ruo ppt 20, n'agbanyeghị na Maryland anaghị achịkwa ihe ndị ahụ.
Obere obere azụ nke eghe eghe eghe sitere na Chesapeake Bay nwere ike tụọ 4 ounces ma ọ bụ gram 113. Ọ bụrụ na filet nke azụ nwere akụkụ 9,470 kwa puku ijeri PFAS, nke ahụ bụ akụkụ 9.47 kwa ijeri, nke bụ otu ihe ahụ dị na 9.47 nanogram kwa gram. (ng/g)
Yabụ, 9.47 ng/gx 113 g = 1,070 ng. Ije ozi 4-ounce nwere 1,070 nanogram nke PFAS. Anyị ga-asị 4 ounces nke azụ a dị ụtọ na-enye onye dị afọ ise na-eru kilogram 50.
Ndị na -ahụ maka nchekwa nri nri nke Europe (EFSA) ewepụtala nnabata izu ụka (TWI) maka nwatakịrị na -eru kilogram 50 (22.6 kilos) na 100 nanogram kwa izu nke kemịkalụ PFAS anọ, gụnyere PFOS.
Anụ nri anọ nke perch nwere 1,070 ng nke PFAS ji okpukpu iri karịa nke ndị Europe -enwe kwa izu oke maka nwa anyị. Anụ ọhịa perch bụ nsi. Ọ gaghị egbu nwata ahụ, mana ọ nwere ike mee ka ọ daa ọrịa n'ikpeazụ.
Ngalaba Ahụike na Gburugburu Ebe obibi Maryland anaghị eche maka Marylanders na -eri oke nsi a site na obere akụkụ azụ. Ụmụ nwanyị dị ime ma ọ bụ nwee ike ịtụrụ ime ekwesịghị iri nri perch jidere na nso ụlọ nyocha Naval - Chesapeake Bay Detachment. Ọ na -apụta ngwa ngwa na ha ekwesịghị iri azụ ọ bụla n'ebe ọ bụla n'ọnụ mmiri - ọ bụghịkwa onye ọ bụla ọzọ.
Nsonaazụ nnwale nke Obodo Chesapeake Beach gosikwara na mmiri ọwa mmiri “a na -emeso” nke a na -ewepụtakarị na mmiri si n'obodo ahụ nwere ppt 506.9 nke “kemịkalụ ebighi ebi”. Acid Perfluoropentanoic (PFPeA), onye na -ahụ maka ihe agha/ ụlọ ọrụ mere ihe kpatara mmetọ ahụ. Chesapeake Beach na -enwetakwa mmetụta site na Obodo North Beach, yana obere akụkụ ndịda Anne Arundel County. A na -eche ụdị PFAS niile dị ka ihe na -emerụ ahụ, ebe ụzọ bụ isi maka oriri mmadụ bụ site na iri nri mmiri sitere na mmiri mmetọ.
Obodo Chesapeake Beach wepụtara nkwupụta a:
“Ọgọst 10, 2021 (Chesapeake Beach, MD)- Obodo Chesapeake Beach na-aga n'ihu na ngalaba na-ahụ maka gburugburu ebe obibi Maryland na ndị agha mmiri nke United States gbasara mbọ ibelata na Laboratory Research Navy- Chesapeake Bay Detachment.
Na Mee nke 2021, Obodo kwupụtara na mmiri ọ Townụ Townụ Town enweghị akara nke ihe ọ bụla na polyfluoroalkyl (PFAS). Emere ule na olulu mmiri niile nke obodo, nke na -esite na Aquia Aquifer.
Na mgbakwunye na ịnwale mmiri ọ Townụ theụ Town, Town emeela usoro ndị ọzọ iji nwalee mmiri igwu mmiri nke obodo, ndụ mmiri mpaghara yana mgbapụta mmiri Chesapeake Beach (WRTP) maka ihe kwa-na polyfluoroalkyl (PFAS). ”
Agbanyeghị na obodo kwuru na ọ nwalere “ndụ mmiri mmiri mpaghara”, akụkọ oyster nke Eurofins Environment Testing America kwadebere, ụbọchị 8/4/21, gụnyere nhazi GPS nke 3842.084. 7630.601. Saịtị a dị ihe dịka 23 n'akụkụ ọwụwa anyanwụ nke Cove Point Light House ma ewere ya dịka otu n'ime mpaghara kachasị mma na mpaghara Chesapeake. Lee ihe Akụkọ Eurofins Oyster nke obodo wepụtara.
A na-anakọta Rockfish na Perch na 3865.722, 7652.5429, nke dị ihe dịka 1,000 ụkwụ n'akụkụ osimiri site na NRL-CBD. Lee ihe Akụkọ Azụ Eurofins nke obodo wepụtara.
N'ihe gbagọrọ agbagọ, akụkọ oyster na azụ nke Eurofins kwadebere maka onye ahịa:
ỌR.
8200 Bayside Rd.
Chesapeake, Maryland, 20732
Ebee: Holly Wahl
PEER dị mkpụmkpụ maka ndị ọrụ ọhaneze maka ibu ọrụ gburugburu ebe obibi, ụlọ ọrụ na -ahụ maka gburugburu ebe obibi dabere na Silver Spring, Maryland nke na -agbachitere whistleblowers ma na -enwu ọkụ na omume gọọmentị iwu na -akwadoghị. Tim Whitehouse, onye isi oche nke PEER kwuru na ụlọ ọrụ ya “etinyeghị aka” na inye akụkọ ahụ.
Obodo Chesapeake Beach na -ekwu na ọ "na -aga n'ihu na ngalaba na -ahụ maka gburugburu ebe obibi Maryland na ndị agha mmiri nke United States gbasara mbọ ibelata na Laboratory Research Navy - Chesapeake Bay Detachment" na nke a doro anya nke ukwuu.
N'ụzọ dị mwute, ọ nweghị onye na -ebelata kemịkalụ na gburugburu ebe obibi. Kama nke ahụ, ha na -anwa ibelata nchegbu ọha na eze gbasara mmetọ ndị agha mmiri nke Chesapeake Bay. Mbelata DOD bụ echiche echekwara. A na -enweta ikikere nke nsi site na mgbasa ozi na -akpali akpali, na -akwagide, ma na -arụ ọrụ nke ọma.
Mgbe ekwuputara ọkwa PFAS dị elu na mmiri nke St. Inigoes Creek nke dị n'akụkụ Webster Field Annex nke Patuxent River Naval Air Station na February, 2020, Ira May, onye na -elekọta gọọmenti etiti mkpocha saịtị maka Ngalaba Na -ahụ Maka Gburugburu Ebe Obibi nke Maryland, tụrụ aro na mmetọ na mmiri, “ọ bụrụ na ọ dị”, nwere ike ịnwe isi mmalite ọzọ. A na -ahụkarị kemịkal ndị ahụ na nsị ala, ka o kwuru, yana biosolids na saịtị ebe ngalaba mgbanyụ ọkụ obodo na -efesa ụfụfụ.
Ebe a na-ekpofu ahịhịa kacha nso maka iji PFAS na-agba ụfụfụ na-enwu ọkụ na ntọala bụ kilomita 11 ebe ụlọ ọkụ na-ere ọkụ dị kilomita ise.
"Yabụ, enwere ọtụtụ isi mmalite enwere ike," May kwuru. "Anyị nọ na mbido ilele ha niile." Ha ka nọkwa na mbido.
Onye isi nchekwa gburugburu Maryland na -ekpuchi maka DOD. Ndị agha mmiri mechara kọwaa 84,756 ppt nke PFAS n'ime mmiri ala na Webster Field, na -aga na mmiri.
Enwere ihe akaebe ndị ọzọ nke mbibi Maryland banyere PFAS na ndụ mmiri mmiri nke Chesapeake. Na Septemba 2020, Ngalaba Na -ahụ Maka Gburugburu Ebe obibi Maryland (MDE) wepụtara akụkọ akpọrọ "St. Ọmụmụ nkuzi ụgbọ mmiri Mary's PFAS na mmiri dị n'elu na oysters. ” (Ọmụmụ Pilot PFAS) nke nyochachara ogo nke kwa-na poly fluoroalkyl bekee (PFAS) na mmiri mmiri na oysters. Kpọmkwem, PFAS Pilot Study kwubiri na ọ bụ ezie na PFAS dị na mmiri na-asọ asọ nke Osimiri St. Mary, ihe ndị a na-etinye "dịkarịsịrị n'okpuru ihe egwu dabere na njirisi ihe eji eme ihe eji eme ihe na njiri mara saịtị.
Ọ bụ ezie na akụkọ ahụ na-eme nkwubi okwu ndị a sara mbara, usoro nyocha na ndabere maka njirisi nyocha nke MDE jiri mee ihe bụ ihe na-enyo enyo, na-ebute nduhie nke ọha na eze, ma na-enye echiche aghụghọ na ụgha nke nchekwa.
Mmechi MDE na-erute nchọta ezi uche dị na ya dabere na data anakọtara ana -adabaghị n'ụkpụrụ sayensị na ụlọ ọrụ nabatara n'ọtụtụ akụkụ. Nnwale Pilot PFAS nwalere wee kọọ banyere ọnụnọ PFAS na anụ ahụ oyster. Ọ bụ ụlọ nyocha Alfa Analytical nke Mansfield, Massachusetts mere nyocha ahụ.
Nnwale ndị Alfa Analytical Laboratory mere nwere njedebe nchọpụta maka oysters n'otu microgram kwa kilogram (1 µg/kg) nke ya na akụkụ 1 n'otu ijeri, ma ọ bụ akụkụ 1,000 kwa puku ijeri. (ppt.) N'ihi nke a, ka achọpụtara ogige PFAS ọ bụla n'otu n'otu, usoro nyocha ejiri rụọ ọrụ enweghị ike ịchọpụta PFAS ọ bụla na -erughị 1,000 akụkụ kwa puku ijeri. Ọnụnọ nke PFAS bụ mgbakwunye; ya mere, a na -agbakwunye ọnụọgụ nke ihe ọ bụla iji rute ngụkọta PFAS dị na nlele. Mkpokọta nwere ike gafere ọtụtụ puku akụkụ kwa puku ijeri nsị na oyster ebe steeti na -akọ "Enweghị Nchọpụta".
MDE na -ekpuchi ndị agha mmiri ebe obodo Chesapeake enweghị ekpere ọbụlagodi na ọ kpebiri ịbụ onye ọkpụkpọ na -akwụwa aka ọtọ.
N'okpuru bụ nchoputa sitere n'ọkụ oyster na ọmụmụ azụ, nyocha PFAS na -esote Pace Analytical nke mmiri na -asọ asọ sitere na Osisi Ọgwụ Mgbapụta Mmiri Chesapeake Beach, (WRTP). A na -awụpụ mmiri dị mma n'ime mmiri mgbe emechara ya. A naghị ewepụ kemịkalụ PFAS site na nsị na usoro ọgwụgwọ.
oporo
PFOA - Perfluorooctanoic acid 180 ppt JB*
PFOS - Perfluorooctanesulfonic acid 470 ppt J
PFOSA - Perfluorooctanesulfonamide 410 ppt J
Ngụkọta 1,060
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Gịnị kpatara
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
Onu ogugu 9,470 ppt
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Nkume Nkume (Bass gbara ọtọ)
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
Ngụkọta 2,450 ppt
===============
J - ịta ahụhụ bụ ọnụ ahịa dị mkpirikpi; B - achọtara ogige na oghere na nlele.
Obodo Chesapeake Beach Water Recication Plant
Nsonaazụ bara uru maka PFAS
Mmiri anakọtara 06/10/2021
Ntughari Ntughari
Ugwu Chesapeake, MD
Nchịkọta nyocha nyocha PFAS site na onye ahịa dilution Isotope
PFAS Mmasị
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
Ngụkọta 506.9 ppt
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Na Mee 2021, ndị agha mmiri kwupụtara na saịtị NRL-CBD nwere ọkwa PFAS na ala dị n'okpuru ala karịa nde 8 n'otu puku ijeri, ikekwe ọkwa kachasị elu n'ụwa niile. Oke mmetọ a na -emesi mmetọ mpaghara ike ruo ọtụtụ puku afọ. Achọpụtara mmiri nke na -ahapụ ntọala nwere 5,464 ppt nke nsi ebe achọpụtara mmiri ala na mkpokọta 171,000 ppt. Mmetọ ala, mmiri dị n'elu, na mmiri ala bụchaghị nke sitere na PFOS, na -arụ ụka na ụdị PFAS kacha egbu egbu. Ngalaba Wisconsin nke Gburugburu Ebe obibi na -ekwu na ahụike mmadụ na -etinye n'ihe egwu mgbe mmiri dị n'elu gafere ppt 2 nke PFOS, n'ihi ọdịdị bioaccumulative nke PFOS na azụ. Ọtụtụ steeti na -amachi ọkwa mmiri ala ruo 20 ppt, n'agbanyeghị na ọ bụghị Maryland.
