page_xn_02

Nkhani

Gwiritsani Ntchito Ndipo Muyenera Kusamala Ndi DEET

DEET imadziwikanso kuti N, n-diethyl-m-toluidamide. DEET idapangidwa koyamba pa nthawi ya nkhondo yachiwiri yapadziko lonse ndipo idapangidwa ndi US department of Agriculture. Anagwiritsidwa ntchito ndi asitikali aku US ku 1946 ndipo adalembetsa kuti agwiritsidwe ntchito ku United States ku 1957. Idagulitsidwa pamsika ngati mankhwala othamangitsira udzudzu kuyambira 1965.

Pafupifupi zaka 70 kafukufuku wasonyeza kuti DEET imathamangitsa udzudzu wosiyanasiyana (udzudzu, ntchentche, utitiri, Chigger Mites, midge, ndi zina zambiri) ndipo zitha kuletsa kulumidwa ndi udzudzu. Komabe, sizothandiza njuchi, Solenopsis invicta, akangaude ndi zina zodzitetezera kuti zilume, chifukwa ndizosiyana ndi magazi oyamwa ma arthropods, ndipo akufuna kusiya izi mopitilira muyeso pokhapokha atagwiritsa ntchito mankhwala ophera tizilombo kapena magetsi a udzudzu ndi njira zina.

Njira Yogwirira Ntchito

Makina a DEET sakudziwikabe. Choyamba chidaganiziridwa kuti chitha kuteteza tizilombo tomwe timayamwa magazi kuti tisayandikire thupi la munthu mwa kununkhiza.

Komabe, DEET imatha kuletsa kuyamwa kwa udzudzu ku lactic acid ndi 1-octen-3-ol mankhwala, kuphimba kapena kutseka udzudzu wa udzudzu, ndikuletsa kuzindikira nyama yoyenera.

Pambuyo pake, zidapezeka kuti DEET imagwira mwachindunji ma neuron apadera omwe ali munthawi ya udzudzu ndipo imatulutsa mphamvu yotulutsa, koma siyimitsa malingaliro a lactic acid, CO2 ndi 1-octen-3-ol.

Kafukufuku waposachedwa apezanso kuti kuphatikiza kwa DEET ndi zina mwa zomwe zimayang'aniridwa ndimankhwala ndi njira yoyamba yachilengedwe yodziwira zinthu zakunja, koma izi zikuyenera kutsimikiziridwa pambuyo pake.

Kagwiritsidwe Ndipo mosamala

Chitetezo
Mwambiri, DEET imakhala ndi chitetezo chokwanira komanso poizoni wotsika. Kafukufuku amene alipo akuti DEET ilibe vuto la khansa, teratogenic komanso chitukuko. Centers for Disease Control and Prevention (CDC) imalimbikitsa kuti amayi apakati ndi omwe akuyamwitsa azigwiritsa ntchito DEET (chimodzimodzi ndi omwe sanatengere pakati) kupewa kulumidwa ndi udzudzu ndikuchepetsa chiopsezo cha matenda opatsirana. Nthawi yomweyo, American Academy of Pediatrics (AAP) imalimbikitsa kuti ana azaka zopitilira miyezi iwiri azigwiritsa ntchito 10% - 30% DEET, yomwe ndi yotetezeka komanso yothandiza, ndipo sayenera kugwiritsidwa ntchito kangapo patsiku. Sikoyenera kwa ana osakwana miyezi iwiri

Kuchita bwino
Zomwe zili mu DEET pamsika zimayambira 5% mpaka 99%, ndipo zidapezeka kuti zotsatira za 10% mpaka 30% DEET zinali zofanana. Komabe, nthawi yothandiza ya DEET m'malo osiyanasiyana inali yosiyana. 10% imatha kupereka maola awiri oteteza, pomwe 24% imatha kupereka maola 5 oteteza. Kuphatikiza apo, kusambira, thukuta, kupukuta ndi mvula kumatha kufupikitsa nthawi yachitetezo ya DEET. Poterepa, DEET yokhala ndi ndende yayikulu imatha kusankhidwa.

Tiyenera kudziwa kuti zoposa 30% DEET sizingakulitse kwambiri nthawi yotetezedwa, koma zitha kuwoneka ngati zotupa pakhungu, zotupa ndi zina zotulutsa khungu, komanso zimatha kukhala ndi neurotoxicity.


Post nthawi: 01-06-21

Kufufuza

Maola 24 Paintaneti

For kufunsa za mankhwala athu kapena mndandanda mtengo, chonde kusiya imelo kwa ife ndipo tidzakhala kukhudza pasanathe maola 24.

Kufufuza Tsopano