Ka Pat Elder, January 20, 2019
PFAS e fumanehang metsing a nooang haufi le Battle Creek National Guard Base.
Amerika e na le e 'ngoe ea mathata a bophelo bo botle ka ho fetisisa historing ea eona ho fihlela ho batho ba limilione tse 110 tse ka 'nang tsa pepesetsoa metsi a nooang a silafalitsoe ke Per and Poly Fluoroalkyl Substances, kapa PFAS. Mohloli o moholo oa tšilafalo ea lik'hemik'hale e tsoa ho foam e hlahisang filimi (AFFF) e sebelisetsoang ho koetlisa mollo ka mekhoa ea sesole. Masole a lumella hore chefo e kenelle metsing a ka tlase ho silafatsa metse ea boahelani e sebelisang metsi a ka tlas'a liliba tsa bona le mananeo a metsi a metse.
Pentagon ha e na molato mme e hana ho lefa bakeng sa ho hloekisa tšilafalo eo e e bakileng. Colonel Andrew Wiesen oa Sesole, Motsamaisi oa Thibelo ea Meriana ea DOD bakeng sa Ofisi ea Litaba tsa Bophelo o re tšilafalo ke boikarabello ba EPA. "Ha re etse lipatlisiso tsa mantlha sebakeng sena," o bolelletse Marine Corps Times. "EPA e ikarabella bakeng sa seo," o ile a re. "DoD ha e shebane le metsoako ka boithatelo 'me ha e na" tlatlisiso e eketsehileng ho sena, mabapi le liphello tsa bophelo ba PFOS / PFOA, bonyane kamoo ke tsebang kateng. "
Ho sa le joalo, Lebotho la Moea e ke ke ea tsosolosa metse e meraro ea Colorado bakeng sa chelete e sebelisitsoeng ho arabela tšilafalo ea metsi e bakiloeng ke foam e chefo ea mollo. AFFF e ne e kile ea sebelisoa Peterson Air Force Base, e kanna ea tloha litoropong ka tabo ea $ 11 milione. Sesole sa Meea se boletse hore mehloli e meng e kanna ea kenya letsoho tšilafatsong ea metsi a metsi, leha ho se na e fumanoeng.
Ho na le lik'hemik'hale tse kotsi tsa 3,000 tse entsoeng. Tse peli tse bolaeang ke Perfluoro Octane Sulfonate (PFOS) le Perfluoro Octanoic Acid (PFOA). Li thusa haholo ho tima mollo oa peterole o chesang haholo.
PFOS & PFOA e tsejoa e le "lik'hemik'hale tsa ka ho sa feleng" hobane ha li senyehe ka tlhaho tikolohong. Makala a sesole a ntse a ntse a fetohela ho a mang hanyane ka tlase e bolaeang ho loantša mollo.
EPA e tsoela pele ho lumella litšila tse bolaeang tsa PFAS hore li sebelisoe nakong eo Bo-rasaense ba Harvard ba re karolo ea 1 karolo ea trillion (ppt) e ka ba kotsi bophelong ba batho.
Mokhatlo oa Li-Lifetime Health Advisory (LHA) oa EPA o kopantsoeng ke lik'hemik'hale ka bobeli ke 70 ppt ha Mokhatlo oa Likokoana-hloko le Matšoao a Mafu (ATSDR) o behile litekanyetso tsa metsi a nooang bophelong ba 11 ppt bakeng sa PFOA le 7 ppt bakeng sa PFOS.
Tlaleho e latelang ea setšoantšo e leka ho kopanya mekhoa ea tloaelo ea AFFF holim'a lits'ebeletso tsa sesole ka litekanyetso tse phahameng tsa metsi a fatše a chefo lichabeng tse haufi.
Palo ea phofo ea PFOS / PFOA metsing a ka tlas'a metsi e nkiloe ho sena Tlaleho ea DOD. Lintlha tse entsoeng ke DOD tlalehong li kenyelelitsoe.
Peterson Air Force Base, Colorado
88,400 ppt (PFOS + PFOA) e fumanoa ka metsing.
DOD Comments: Beng ba matlo a poraefete ba fane ka li-unit tsa under-sink (kitchen) reverse osmosis (RO). Metsi a libotlolo a ntse a fuoa basebetsi ba setsi sa mabenkele. Sistimi ea kh'ontrola e nang le phallo e tlase ea granular e kentsoeng serapeng se le seng sa (1) sa lehae se tsamaeang le ntlo e le 'ngoe (1) ea polasing. Kereke e ngoe ea lehae e ne e hokahantsoe le metsi a toropo. Metsi a libotlolo a ntse a fuoa li-unit tse 52 serapeng se seng sa lehae se tsamaeang.
Ka October, 2016 ho feta Li-gallons tsa 150,000 tsa lik'hemik'hale tsa mollo li ile tsa lokolloa ho ea Colorado Springs Utilities sewer system system.
Eglin Air Force Base, Florida
280,000 ppt (PFOS + PFOA) e fumanoa ka metsing.
DOD Comments: E phethetse Tekolo ea Pele ea motheo mme a fumana tumellano ea taolo ho se fumanoeng. O qalile tlhahlobo ea sebaka ka bophara ea PFOS le PFOA.
Base Joang Base Langley-Eustis Virginia
2,200,000 ppt PFOS + PFOA e fumanoang ka metsing.
DOD Comments: E phethetse Tekolo ea Pele ea motheo mme a fumana tumellano ea taolo ho se fumanoeng. O qalile tlhahlobo ea sebaka ka bophara ea PFOS le PFOA.
Ellsworth Air Force Base, South Dakota
551,000 ppt PFOS + PFOA e fumanoang ka metsing.
DOD Comments: Ho phethetsoe tlhahlobo e lekanyelitsoeng ea tlhahlobo ea pele / tlhahlobo ea sebaka sa PFOS le PFOA ho amohetse tumellano ea taolo ho se fumanoeng. O qalile Patlisiso ea Tlhabollo sebakeng sa pele sa koetliso ea mollo mme a phethela karolo ea pele ea ts'ebetso ea lebaleng Lehlabuleng la 2017. O qalile tlhahlobo e kholo ea sebaka sa marang-rang.
Fairchild Air Force Base, Washington
5,700 ppt (PFOS + PFOA) e fumanoa ka metsing.
DOD Comments: Liliba tse nooang tsa poraefete tse 43 ho tse 104, 'me sistimi e le' ngoe ho tse 1 ea sechaba e feta LHA ho la Fairchild. Buisana le MOU le masepala oa lehae; o ka kenya mochini o hloekileng oa GAC tsamaisong ea metsi ea sechaba ea DW; ECD - ho ikemisetsa. Kenya lits'ebetso tsa karaoke ea matlo matlong a batho ba nang le liliba tse nooang tsa poraefete.
Travis Air Force Base, California
40,000 ppt (PFOS + PFOA) e fumanoa ka metsing.
DOD Comments: E phethetse Tekolo ea Pele ea motheo mme a fumana tumellano ea taolo ho se fumanoeng. O qalile tlhahlobo ea sebaka ka bophara ea PFOS le PFOA.
Jacksonville Sekepe sa Lifofane sa Ntoa, Florida
1,397,120 ppt (PFOS + PFOA) e fumanoa ka metsing.
DOD: Ha ho Maikutlo.
Eielson Air Force Base, Alaska
2,000,000 ppt (PFOS + PFOA) e fumanoa ka metsing.
DOD Comments: E phethelelitse Tlhahlobo ea Pele ea Phatlalatso ea motheo 'me e fumane tumellano ea molao holim'a liphuputso. O qalile tlhahlobo ea sebaka sa motheo bakeng sa PFOS le PFOA.
Sehlekehleke sa Channel Islands National Guard Base, California
1,080,000 ppt (PFOS + PFOA) e fumanoang ka metsing.
DOD: Ha ho Maikutlo.
Beale Air Force Base, California
200,000 ppt (PFOS + PFOA) e fumanoa ka metsing.
DOD Comments: E phethetse Tekolo ea Pele ea motheo mme a fumana tumellano ea taolo ho se fumanoeng. O qalile tlhahlobo ea sebaka ka bophara ea PFOS le PFOA.
Sebaka sa Thabeng sa Afrika Base, Idaho
Tlhahlobo ea foam e tloaelehileng ea Mountain Home AFB.
105 ppt ea PFOS + PFOA e fumanoe metsing a nooang.
DOD Comments: Ho na le mehlala ea ho noa metsi le tlhahlobo ea metsi. Metsi a mangata a ile a rekoa e le tekanyo ea tšireletso ea nakoana ha liliba tse silafetseng li hlahlojoa, 'me moralo o ile oa etsoa.
Karabo e le 'ngoe
Pat Moholo le letšolo khahlanong le lik'hemik'hale tsa PFAS:
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