I le aso 24 o Aokuso, na tatalaina ai e Iapani le lafoaia o le suavai leaga na afaina i le faalavelave faaniukilia a Fukushima i le Vasa Pasefika. I le taimi nei, e tusa ai ma faʻamatalaga lautele a le TEPCO ia Iuni 2023, o le lapisi ua saunia e lafoai e masani lava ona aofia ai: o le gaioiga a le H-3 e tusa ma le 1.4 x10⁵Bq / L; o le gaioiga o le C-14 o le 14 Bq / L; I-129 o le 2 Bq / L; o le gaoioiga a Co-60, Sr-90, Y-90, Tc-99, Sb-125, Te-125m ma Cs-137 o le 0.1-1 Bq / L. I lenei tulaga, tatou te taulai atu e le gata i le tritium i vai otaota faaniukilia, ae faapea foi i luga o tulaga lamatia o isi radionuclides. Na o le TepCO na faʻaalia le aofaʻi atoa o le α ma le aofaʻi o faʻamaumauga o le eletise o le vai faʻaleagaina, ma e leʻi faʻaalia le faʻamaumauga o faʻamatalaga oona ultra-uranium nuclides e pei ole Np-237, Pu-239, Pu-240, Am-240, Am-241, Am-243 ma Cm-242, o se tasi foi o le faʻamaʻi faʻamaʻi faʻamaʻi mo le saogalemu. sami.
O le fa'aleagaina o le radiation o le fa'aleagaina o le si'osi'omaga ose filogia natia, a maua loa o le a iai se a'afiaga leaga i tagata o lo'o si'omia. E le gata i lea, afai o le meaola faʻasalalau poʻo le faʻasalalauga faʻasalalau i luga o le alaleo eletise e afaina i le radionuclide, e mafai ona faʻasalalau mai le tulaga maualalo i le maualuga e ala i le filifili meaʻai ma faʻaauau pea ona faʻatamaoaigaina i le faagasologa o felauaiga. O le taimi lava e ulu atu ai nei mea eleelea i totonu o le tino o le tagata e ala i meaai, e mafai ona faaputuputu i totonu o le tino o le tagata, e ono afaina ai le soifua maloloina o le tagata.
Ina ia faʻaitiitia pe aloese mai le afaina o le faʻaalia o le radiation i tagata lautele ma puipuia le soifua maloloina lautele i se tulaga maualuga, o le "International Basic Safety Standards for Radiation Protection and Radiation Source Safety" o loʻo faʻatonuina ai e le pulega agavaa e faʻatulagaina le maualuga o faʻamatalaga mo radionuclides i meaʻai.
I Saina, ua faʻatulagaina tulaga talafeagai mo le suʻeina o le tele o radionuclids masani. O faʻataʻitaʻiga mo le suʻesuʻeina o mea faʻasalalau i meaʻai e aofia ai GB 14883.1~10- -2016 "National Standard for Food Safety: Suʻesuʻeina o mea faʻasalalau i meaʻai" ma GB 8538- -
2022 "National Standard for Food Safety Drinking Natural Mineral Water", GB / T 5750.13- -2006 "Radioactive Index for Standard Inspection Methods for Instructing Suavai", SN / T 4889- -2017 "Determining of γ Radionuclide in Export High-salt Food", WS-202Mestance Substance in Leitio "WS / T 202Mestance" Mea'ai-241", ma isi
Ole auala ole su'esu'eina ole radionuclide ma mea e fua ai mea'ai masani ile tulaga fa'ata'ita'i e fa'apea:
| Iloilo le poloketi | meafaigaluega su'esu'e | Isi meafaigaluega fa'apitoa | tulaga faatonuina |
| α, β gaioiga mamafa | α maualalo pito i tua, β counter | GB / T5750.13- -2006 Fa'asinomaga Leitio o Metotia Su'ega Fa'ata'ita'i mo Suavai Fa'alotoifale ma Suavai. | |
| tritium | Fa'aitu fa'alili vai maualalo pito i tua | Organotritium-carbon faʻataʻitaʻiga meafaigaluega sauniuni; Triitium fa'aputu fa'aputuga masini i le vai; | GB14883.2-2016 Fuafuaga o Mea Leitio Hydrogen-3 i Mea'ai, National Standard mo le Saogalemu o Mea'ai |
| Strontium-89 ma le strontium-90 | α maualalo pito i tua, β counter | GB14883.3-2016 Filifiliga o Strr-89 ma Strr-90 i le National Standard for Food Safety | |
| Aso Adventitia-147 | α maualalo pito i tua, β counter | GB14883.4-2016 Su'esu'eina o Mea'ai Leitio i Mea'ai-147, Tulaga Fa'atunuu mo le Saogalemu o Mea'ai | |
| Polonium-210 | α spectrometer | Eletise palapala | GB 14883.5-2016 Filifiliga ole Polonium-210 ile National Standard for Food Safety |
| Rum-226 ma le radium-228 | Radon Thorium su'esu'e | GB 14883.6-2016 National Standards Safety Safety | |
| Torium masani ma le uranium | Spectrophotometer, su'e su'ega uranium | GB 14883.7-2016 Fuafuaga o le Torium ma le Uranium fa'aanatura e fai ma mea fa'aleotini i le National Standard for Food Safety. | |
| Plutonium-239, plutonium-24 | α spectrometer | Eletise palapala | GB 14883.8-2016 Fuafuaga o le plutonium-239 ma le plutonium-240 mea leitio i le National Standard for Food Safety |
| Iodine-131 | Ole maualuga ole mama germanium γ spectrometer | GB 14883.9-2016 Fuafuaga o Iodine-131 i Mea'ai, Tulaga Fa'ale-atunu'u mo le Saogalemu o Mea'ai |
fautuaga oloa
mea faigaluega fua
Fa'ata αβ pito maualalo
Fa'ailoga: masini fatu
Numera fa'ata'ita'iga: RJ 41-4F
talaaga o oloa:
Fa'asolo ituaiga maualalo talaaga α, β fua meafaigaluega e masani lava ona faʻaaogaina mo faʻataʻitaʻiga o le siosiomaga, puipuiga o le radiation, vailaʻau ma le soifua maloloina, faʻasaienisi faʻatoʻaga, faʻaulufale mai ma faʻatau atu oloa asiasia, suʻesuʻega faʻafanua, fale eletise faaniukilia ma isi fanua i le vai, faʻataʻitaʻiga o meaola, aerosol, meaʻai, vailaʻau, eleele, papa ma isi faʻasalalauga i le aofaʻi atoa β fua.
O le mafiafia ta'ita'i talipupuni i totonu o le potu fua fa'amautinoaina le matua maualalo le talaaga, maualuga le iloa lelei mo fa'ata'ita'iga fa'aitiotini maualalo, ma 2,4,6,8,10 auala e mafai ona fa'apitoa.
Ole spectrometer ole malosi ole germanium γ mama maualuga
Fa'ailoga: masini fatu
Numera fa'ata'ita'iga: RJ 46
talaaga o oloa:
RJ 46 fa'akomepiuta maualuga mama germanium fa'aola alaleo e masani lava ona aofia ai le fou maualuga mama mama fuala'au pito i tua. E fa'aogaina e le spectrometer le fa'ata'ita'iga o mea na tutupu e maua mai ai le malosi (amplitude) ma le taimi fa'amatalaga o le fa'ailoga o le HPGe detector ma teu ai.
α spectrometer
Fa'ailoga: masini fatu
Numera fa'atusa: RJ 49
talaaga o oloa:
Alpha malosiaga spectroscopy fua tekinolosi ma meafaigaluega ua faʻaaogaina lautele i le siosiomaga ma le soifua maloloina iloiloga (e pei o le thorium aerosol fua, asiasiga meaai, soifua maloloina o tagata, ma isi), suʻesuʻega punaoa (uranium ore, suauʻu, kesi masani, ma isi) ma suʻesuʻega fausaga faʻafanua (e pei o punaoa o le eleele, faʻaleagaina o eleele) ma isi fanua.
RJ 494-channel Alpha spectrometer o se meafaigaluega semiconductor PIPS tutoatasi atiaeina e Shanghai Renji Instrument Co., Ltd. O le spectrometer e fa alalaupapa α, o ia mea taitasi e mafai ona fuaina i le taimi e tasi, lea e mafai ona matua faapuupuuina le tau o le taimi o le suʻega ma vave maua le faʻataʻitaʻiga iʻuga.
Fa'aitu fa'alili vai maualalo pito i tua
Fa'ailoga: HIDEX
Numera fa'atusa: 300SL-L
talaaga o oloa:
Suavai scintillation counter o se ituaiga o mea e sili ona maaleale e masani ona faʻaaogaina mo le fua saʻo o le radioactive α ma β nuclides i faʻasalalauga vai, e pei o le radioactive tritium, carbon-14, iodine-129, strontium-90, ruthenium-106 ma isi nuclides.
Su'e vai radium
Fa'ailoga: PYLON
Fa'ata'ita'iga: AB7
talaaga o oloa:
O le Pylon AB7 Portable Radiological Monitor o le isi augatupulaga o mea faigaluega tulaga suʻesuʻe e maua ai le vave ma le saʻo o fua o le radon.
Isi meafaigaluega fa'apitoa
Triitium fa'aputu fa'aputuga masini i le vai
Fa'ailoga: Yi Xing
Numera fa'ata'ita'iga: ECTW-1
talaaga o oloa:
O le faʻaogaina o le tritium i totonu o le sami e maualalo, e oʻo lava i mea sili ona lelei e iloa ai e le mafai ona fuaina, o le mea lea, o faʻataʻitaʻiga e maualalo le talaaga e manaʻomia ona faia muamua, o lona uiga, o le faʻaogaina o le electrolysis.O le ECTW-1 tritium electrolytic collector na gaosia e la matou kamupani e masani ona faʻaaogaina mo le faʻaogaina o le tritium i le vai maualalo, lea e mafai ona faʻapipiʻi faʻataʻitaʻiga tritium i lalo ifo o le faʻatapulaʻaina o le faʻamalama moli vai seia mafai ona fua saʻo.
Organotritium-carbon faʻataʻitaʻiga meafaigaluega sauniuni
Fa'ailoga: Yi Xing
Numera fa'ata'ita'iga: OTCS11/3
talaaga o oloa:
OTCS11 / 3 Organic tritium carbon sampling masini faaaoga le mataupu faavae o organic samples i lalo o le vevela oxidation combustion maualuga i le vevela o le siosiomaga aerobic e maua ai le vai ma carbon dioxide, e iloa ai le gaosiga o le tritium ma carbon-14 i biological samples, talafeagai mo togafitiga mulimuli, scintillation counter vai e fua ai le gaoioiga o le tritium ma carbon-14.
Eletise palapala
Fa'ailoga: Yi Xing
Numera fa'ata'ita'iga: RWD-02
talaaga o oloa:
RWD-02 o se α spectrometer na atiina ae e Shanghai Yixing Electromechanical Equipment Co., Ltd. faʻavae i luga o tausaga o faʻataʻitaʻiga faʻataʻitaʻiga muamua. Ua mamanuina mo le saunia o faʻataʻitaʻiga o suʻesuʻega ole alaleo ole malosi, ma e talafeagai mo vailaʻau faaniukilia ma suʻesuʻega radioisotope ma faʻaoga fanua.
α spectrometer o se tasi o meafaigaluega taua ole su'esu'ega su'esu'ega fa'avevela ma e mafai ona su'esu'eina nuclides ma le α pala. Afai e taua le maua sa'o au'ili'ili fa'ai'uga, o se la'asaga taua tele o le faia lea o fa'ata'ita'iga. RWD-02 electrodeposition er e faigofie ona faagaoioia, lea e matua faafaigofieina le faagasologa o le faia o faataitaiga, faia ni faataitaiga se lua i le taimi e tasi ma faaleleia le lelei o sauniuniga faataitai.
Taimi meli: Oke-31-2023