SamuwarKimiyya

Rediyoaktif abubuwa - abin da yake na ainihi hadari?

Duk mai rai ko maras rai yanayi a duniya tamu ne fallasa zuwa rediyoaktif radiation a lokacin da duka zama. Don kauce wa wannan shi ne cikakken m.

Rediyoaktif abubuwa za a iya located a cikin jiki da kuma waje da shi - wannan shi ne da farko saboda gaban na halitta bango, wanda form halitta abin da ke faruwa isotopes. Su ne ba a duk membranes na duniya: da karkashin kasa, a gona, a ruwa, a cikin iska.

Conventionally, rediyoaktif abubuwa za a iya raba uku manyan kungiyoyin:

  1. Isotopes wanda aka kafa daga uranium-232, thorium-232 da kuma 235 actinouranium.
  2. Rediyoaktif abubuwa 40 potassium, alli 48, rubidium da 87, da cewa ba su genetically alaka da farko kungiyar.
  3. Isotopes wanda aka kafa a lokacin nukiliya halayen, mikawa ci gaba a duniya saboda daukan hotuna zuwa cosmic haskoki (msl, tritium, carbon 14 da kuma 3).

Bi da bi, wadannan abubuwa kasu kashi na halitta da kuma wucin gadi radioactivity. The halitta ne dogon-rayu isotopes cewa wanzu a cikin halitta fili na kashi. Su rabin-rai daga jeri ɗaya da ɗari zuwa shekara dubu.

Artificial radioactivity ne sakamakon nukiliya halayen, yanã tafiya da gaggãwa mutum. Alal misali, a lokacin da wani nukiliya fashewa samar game da 250 isotopes, na da 225 ne rediyoaktif. Wadannan isotopes faruwa a sakamakon na nukiliya fission da ake kira "m" da aka gyara, kuma su m lalata kayayyakin. The aiki na rediyoaktif abu ne kai tsaye dogara a kan yawan nuclei rubabben kan lokaci. A mafi girma da kafa nuclei, da hakan cikin ayyuka.

Hatsari na radiation rayayyun kwayoyin halitta kawo mai guba radionuclides (Ra 226, Th 228, Pb 21, Ru 106, Na 22, Sr 89, da dai sauransu), wanda sun hada da m tsakiya kwayoyin halitta plutonium da kuma uranium - Ina nufin rabo daga makaman nukiliya man fetur, wanda aka ba shigar a cikin fission dauki.

Mutãne ya iya haifar da fiye da ɗari biyu wucin gadi radionuclides da kuma koya yin amfani da makamashin nukiliya domin dalilai daban-daban, da kuma ba sosai lumana. Saboda haka, da samar da makamashi na nukiliya fashewa da ake amfani a magani, da makamai, don bincika ma'adinai adibas da kuma samar da m makamashi. Kamar wancan kara jimlar kashi na radiation Duniya ta mazaunan.

A mafi yawan lokuta, da rediyoaktif abubuwa a cikin jikin mutum ta hanyar abinci, da ruwa da kuma iska. The adadin da yawan guba na radionuclides a abinci ne m da radiation halin da ake ciki da cewa ya ci gaba a yankin.

Tsire-tsire sha radiation ba kawai daga ƙasa, amma kuma daga halitta ruwan sama. Mai radionuclides tara a cikin kabeji da kuma beets, kuma akalla dukkan su yana kunshe ne a cikin talakawa ciyawa.

Tsarkakewa shuka da kuma m thermal jiyya ma rage adadin radiation a cikinta. Alal misali, lokacin da tsaftacewa da dankali da kuma beets an cire to 40% na radionuclides, da kuma lokacin da dafa - 10-15%. Lokacin da dafa nama dabbobi rediyoaktif abubuwa ma wuce a cikin broth (daga 20% zuwa 50%).

Don rage abun ciki na radionuclides a kiwo kayayyakin, suna mafi kyau tuba a cikin kitse da kuma gina jiki fi mai da hankali.

Mene ne hatsarin radiation?

Da farko, ko da kananan allurai da shi zai iya fararwa da sarkar na events a cikin jiki da take kaiwa zuwa kayyade munanan ko ciwon daji. Radiation a high allurai halaka Kwayoyin kuma tsokoki, haddasa mutuwa da kwayoyin. A salon salula matakin, da inji lalace cell division da chromosomal na'ura katange sabunta bayanan tafiyar matakai da kuma samuwar Kwayoyin tare da m farfadowa daga kyallen takarda.

Mafi barnan rediyoaktif abubuwa yi aiki a kan bargo, thyroid, gonads, da kuma baƙin ciki - wato, waɗanda gabobin da bukatar m sabunta Kwayoyin da kyallen takarda.

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