{"id":1989,"date":"2022-06-04T00:03:10","date_gmt":"2022-06-03T21:03:10","guid":{"rendered":"https:\/\/www.cevikmedya.com\/?p=1989"},"modified":"2022-06-04T00:03:10","modified_gmt":"2022-06-03T21:03:10","slug":"arastirmacilar-atmosferimizde-yeni-ve-tehlikeli-bir-bilesik-turu-kesfettiklerini-acikladilar","status":"publish","type":"post","link":"https:\/\/www.cevikmedya.com\/arastirmacilar-atmosferimizde-yeni-ve-tehlikeli-bir-bilesik-turu-kesfettiklerini-acikladilar\/","title":{"rendered":"Ara\u015ft\u0131rmac\u0131lar, atmosferimizde yeni ve tehlikeli bir bile\u015fik t\u00fcr\u00fc ke\u015ffettiklerini a\u00e7\u0131klad\u0131lar"},"content":{"rendered":"<button class=\"simplefavorite-button\" data-postid=\"1989\" data-siteid=\"1\" data-groupid=\"1\" data-favoritecount=\"1\" style=\"\"><i class=\"far fa-star\"><\/i><\/button><p>Bilim insanlar\u0131, D\u00fcnya atmosferinde <strong>insan sa\u011fl\u0131\u011f\u0131na ve k\u00fcresel iklime tehdit olu\u015fturabilecek yeni bir t\u00fcr a\u015f\u0131r\u0131 reaktif madde tespit ettiler<\/strong>. Kopenhag \u00dcniversitesi ara\u015ft\u0131rmac\u0131lar\u0131, <strong>trioksitlerin, yani birbirine ba\u011fl\u0131 \u00fc\u00e7 oksijen atomuna sahip kimyasal bile\u015fiklerin<\/strong> atmosferik ko\u015fullar alt\u0131nda olu\u015ftu\u011funu g\u00f6sterdi.<\/p>\n<p>Trioksitler, birbirine ba\u011fl\u0131 oksijen atomlar\u0131na sahip olan ve olduk\u00e7a reaktif ve genellikle yan\u0131c\u0131 ve patlay\u0131c\u0131 olan peroksitlerden bile daha reaktiftir. Bizi \u00e7evreleyen havada peroksitlerin var oldu\u011fu biliniyor ve trioksitlerin muhtemelen atmosferde de oldu\u011fu tahmin ediliyordu, ancak \u015fimdiye kadar kesin olarak kan\u0131tlanamam\u0131\u015ft\u0131.<\/p>\n<p>Kopenhag \u00dcniversitesi Kimya B\u00f6l\u00fcm\u00fc&#8217;nden Profes\u00f6r <strong>Henrik Grum Kj\u00e6rgaard<\/strong>, \u201c<em>Art\u0131k bunu kan\u0131tlamay\u0131 ba\u015fard\u0131k<\/em>\u201d diyor ve devam ediyor: \u201c<em>Ke\u015ffetti\u011fimiz bile\u015fiklerin t\u00fcr\u00fc, yap\u0131lar\u0131nda benzersizdir. Ve a\u015f\u0131r\u0131 derecede oksitleyici olduklar\u0131ndan, muhtemelen hen\u00fcz ke\u015ffedemedi\u011fimiz bir grup etkiye sahipler.<\/em>\u201d<\/p>\n<p>Tespit edilen trioksitler, hidrotrioksitler (ROOOH) olarak adland\u0131r\u0131lan tamamen yeni bir kimyasal bile\u015fik s\u0131n\u0131f\u0131. Hidrotrioksitler, iki t\u00fcr radikal (en az bir e\u015fle\u015fmemi\u015f elektron i\u00e7eren molek\u00fcller) aras\u0131ndaki reaksiyonda olu\u015fur.<\/p>\n<p>Ara\u015ft\u0131rmac\u0131lar, \u00e7ok hassas k\u00fctle spektrometreleri ile birlikte oda s\u0131cakl\u0131\u011f\u0131nda ve 1 bar hava bas\u0131nc\u0131nda bir serbest jet ak\u0131\u015f t\u00fcp\u00fc kullan\u0131larak d\u00fczenlenen laboratuvar deneylerinde hidrotrioksitlerin izopren ve dimetil s\u00fclfit dahil olmak \u00fczere bilinen ve yayg\u0131n olarak yay\u0131lan bir\u00e7ok maddenin atmosferik bozunmas\u0131 s\u0131ras\u0131nda olu\u015ftu\u011funu g\u00f6sterdi. Bir\u00e7ok bitki ve hayvan taraf\u0131ndan \u00fcretilir ve polimerleri do\u011fal kau\u00e7u\u011fun ana bile\u015feni olan izopren, atmosfere en s\u0131k yay\u0131lan organik bile\u015fiklerden biridir.<\/p>\n<p><strong>\u00c7al\u0131\u015fma, sal\u0131nan t\u00fcm izoprenin yakla\u015f\u0131k y\u00fczde birinin hidrotrioksitlere d\u00f6n\u00fc\u015ft\u00fc\u011f\u00fcn\u00fc g\u00f6steriyor.<\/strong><\/p>\n<p>Ancak ara\u015ft\u0131rmac\u0131lar, neredeyse t\u00fcm kimyasal bile\u015fiklerin atmosferde hidrotrioksitler olu\u015fturaca\u011f\u0131n\u0131 ve \u00f6m\u00fcrlerinin dakikalardan saatlere kadar de\u011fi\u015febilece\u011fini tahmin ediyor. Bu s\u00fcre de di\u011fer bir\u00e7ok atmosferik bile\u015fikle reaksiyona girecek kadar kararl\u0131 halde olmalar\u0131n\u0131 sa\u011fl\u0131yor.<\/p>\n<p>Ara\u015ft\u0131rmac\u0131lar, atmosferdeki hidrotrioksit konsantrasyonunun santimetrek\u00fcp ba\u015f\u0131na yakla\u015f\u0131k 10 milyon oldu\u011funu tahmin ediyor. Kar\u015f\u0131la\u015ft\u0131r\u0131lma i\u00e7in belirtmek gerekirse, OH (peroksit) radikalleri (atmosferdeki en \u00f6nemli oksidanlardan biri) santimetre k\u00fcpte yakla\u015f\u0131k bir milyon konsantrasyonda bulunuyor.<\/p>\n<p>Kimya B\u00f6l\u00fcm\u00fc&#8217;nde doktora \u00f6\u011frencisi ve \u00e7al\u0131\u015fman\u0131n ikinci yazar\u0131 <strong>Jing Chen<\/strong> &#8220;<em>Art\u0131k do\u011frudan g\u00f6zlem yoluyla, bu bile\u015fiklerin asl\u0131nda atmosferde olu\u015ftu\u011funu, \u015fa\u015f\u0131rt\u0131c\u0131 derecede kararl\u0131 olduklar\u0131n\u0131 ve neredeyse t\u00fcm kimyasal bile\u015fiklerden olu\u015ftuklar\u0131n\u0131 g\u00f6sterebiliriz<\/em>&#8221; dedi ve ekledi: \u201c<em>Art\u0131k b\u00fct\u00fcn spek\u00fclasyonlar sona ermeli.<\/em>\u201d<\/p>\n<p><strong>Ara\u015ft\u0131rma ekibi, hidrotrioksitlerin, aerosoller olarak bilinen ve sa\u011fl\u0131k i\u00e7in tehlike olu\u015fturan ve solunum ve kardiyovask\u00fcler hastal\u0131klara yol a\u00e7abilecek k\u00fc\u00e7\u00fck havadaki partik\u00fcllere n\u00fcfuz edebilece\u011fini s\u00f6yl\u00fcyor.<\/strong><\/p>\n<p>Prof. Kj\u00e6rgaard, &#8220;<em>Muhtemelen aerosollere girecek ve burada yeni etkilere sahip yeni bile\u015fikler olu\u015fturacaklar. Aerosollerde solundu\u011funda zararl\u0131 olan yeni maddelerin olu\u015ftu\u011funu hayal etmek kolayd\u0131r. Ancak bu potansiyel sa\u011fl\u0131k etkilerini ele almak i\u00e7in daha fazla ara\u015ft\u0131rma yap\u0131lmas\u0131 gerekiyor<\/em>\u201d diyor.<\/p>\n<p>Ara\u015ft\u0131rmac\u0131lar, hidrotrioksitlerin ne kadar aerosol \u00fcretildi\u011fini etkileme olas\u0131l\u0131\u011f\u0131n\u0131n y\u00fcksek oldu\u011funu ve bunun da iklim \u00fczerinde bir etkiye sahip oldu\u011funu s\u00f6yl\u00fcyor.<\/p>\n<p>Yard\u0131mc\u0131 yazar ve doktora \u00f6\u011frencisi <strong>Eva R. Kj\u00e6rgaard<\/strong>&#8216;\u0131n a\u00e7\u0131klad\u0131\u011f\u0131 \u00fczere &#8220;<em>G\u00fcne\u015f \u0131\u015f\u0131\u011f\u0131 aerosoller taraf\u0131ndan hem yans\u0131t\u0131ld\u0131\u011f\u0131 hem de emildi\u011fi i\u00e7in, bu, D\u00fcnya&#8217;n\u0131n \u0131s\u0131 dengesini, yani D\u00fcnya&#8217;n\u0131n emdi\u011fi ve uzaya geri g\u00f6nderdi\u011fi g\u00fcne\u015f \u0131\u015f\u0131\u011f\u0131n\u0131n oran\u0131n\u0131 etkiler. Aerosoller maddeleri emdi\u011finde, b\u00fcy\u00fcrler ve D\u00fcnya&#8217;n\u0131n iklimini de etkileyen bulut olu\u015fumuna katk\u0131da bulunurlar.<\/em>&#8220;<\/p>\n<p>Ara\u015ft\u0131rmac\u0131lar, hidrotrioksitlerin ke\u015ffinin, bilim insanlar\u0131n\u0131n yayd\u0131\u011f\u0131m\u0131z kimyasallar\u0131n etkisi hakk\u0131nda daha fazla bilgi edinmesine yard\u0131mc\u0131 olaca\u011f\u0131n\u0131 umuyor.<\/p>\n<p>\u00c7al\u0131\u015fma Science dergisinde yay\u0131nland\u0131.<\/p>\n\t\t\t<div class=\"emoji-content\">\r\n\t\t\t\t<span style=\"display:none\">zvr<\/span>\r\n\t\t\t\t<div class=\"emoji-text\"><p>Bu Yaz\u0131ya Tepkin Ne Oldu ?<\/p><\/div>\r\n\t\t\t\t<div class=\"emoji-icons\">\r\n\t\t\t    <ul data-post-id=\"1989\">\r\n\t\t\t      <li class=\"animated\" data-reaction=\"like\" data-reacted=\"no\" ><a href=\"javascript:void(0)\"><img decoding=\"async\" class=\"animated\" src=\"https:\/\/www.cevikmedya.com\/wp-content\/themes\/goose\/assets\/zuzu-viral-reactions\/assets\/img\/1f44d.svg\" alt=\"\" title=\"\"><em>Be\u011fendim<\/em><span>0<\/span><\/a><\/li>\r\n\t\t\t      <li class=\"animated\" data-reaction=\"love\" data-reacted=\"no\" ><a href=\"javascript:void(0)\"><img decoding=\"async\" class=\"animated\" src=\"https:\/\/www.cevikmedya.com\/wp-content\/themes\/goose\/assets\/zuzu-viral-reactions\/assets\/img\/1f60d.svg\" alt=\"\" title=\"\"><em>Efsane<\/em><span>0<\/span><\/a><\/li>\r\n\t\t\t      <li class=\"animated\" data-reaction=\"win\" data-reacted=\"no\" ><a href=\"javascript:void(0)\"><img decoding=\"async\" class=\"animated\" src=\"https:\/\/www.cevikmedya.com\/wp-content\/themes\/goose\/assets\/zuzu-viral-reactions\/assets\/img\/1f61c.svg\" alt=\"\" title=\"\"><em>Te\u015fekk\u00fcrler<\/em><span>0<\/span><\/a><\/li>\r\n\t\t\t      <li class=\"animated\" data-reaction=\"cute\" data-reacted=\"no\" ><a href=\"javascript:void(0)\"><img decoding=\"async\" class=\"animated\" src=\"https:\/\/www.cevikmedya.com\/wp-content\/themes\/goose\/assets\/zuzu-viral-reactions\/assets\/img\/1f917.svg\" alt=\"\" title=\"\"><em>\u0130yiymi\u015f<\/em><span>0<\/span><\/a><\/li>\r\n\t\t\t      <li class=\"animated\" data-reaction=\"lol\" data-reacted=\"no\" ><a href=\"javascript:void(0)\"><img decoding=\"async\" class=\"animated\" src=\"https:\/\/www.cevikmedya.com\/wp-content\/themes\/goose\/assets\/zuzu-viral-reactions\/assets\/img\/1f632.svg\" alt=\"\" title=\"\"><em>Hahaha !<\/em><span>0<\/span><\/a><\/li>\r\n\t\t\t      <li class=\"animated\" data-reaction=\"omg\" data-reacted=\"no\" ><a href=\"javascript:void(0)\"><img decoding=\"async\" class=\"animated\" src=\"https:\/\/www.cevikmedya.com\/wp-content\/themes\/goose\/assets\/zuzu-viral-reactions\/assets\/img\/1f631.svg\" alt=\"\" title=\"\"><em>\u0130nan\u0131lmaz<\/em><span>0<\/span><\/a><\/li>\r\n\t   \t\t      <li class=\"animated\" data-reaction=\"wtf\" data-reacted=\"no\" ><a href=\"javascript:void(0)\"><img decoding=\"async\" class=\"animated\" src=\"https:\/\/www.cevikmedya.com\/wp-content\/themes\/goose\/assets\/zuzu-viral-reactions\/assets\/img\/1f914.svg\" alt=\"\" title=\"\"><em>\u0130lgin\u00e7<\/em><span>0<\/span><\/a><\/li>\r\n\t\t\t      <li class=\"animated\" data-reaction=\"fail\" data-reacted=\"no\" ><a href=\"javascript:void(0)\"><img decoding=\"async\" class=\"animated\" src=\"https:\/\/www.cevikmedya.com\/wp-content\/themes\/goose\/assets\/zuzu-viral-reactions\/assets\/img\/1f915.svg\" alt=\"\" title=\"\"><em>Hatal\u0131<\/em><span>0<\/span><\/a><\/li>\r\n\t\t\t    <\/ul>\r\n\t\t\t\t\r\n\t\t\t    <div style=\"clear: both;\"><\/div>\r\n\t\t\t <\/div>\r\n\t\t\t <\/div>\r\n\r\n\t\t","protected":false},"excerpt":{"rendered":"<p>Bilim insanlar\u0131, D\u00fcnya atmosferinde insan sa\u011fl\u0131\u011f\u0131na ve k\u00fcresel iklime tehdit olu\u015fturabilecek yeni bir t\u00fcr a\u015f\u0131r\u0131 reaktif madde tespit ettiler &#8230;<\/p>\n","protected":false},"author":1,"featured_media":1990,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[1],"tags":[231,232],"jetpack_publicize_connections":[],"views":173,"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.cevikmedya.com\/wp-content\/uploads\/2022\/06\/arastirmacilar-atmosferimizde-yeni-ve-tehlikeli-bir-bilesik-turu-kesfettiklerini-acikladilar-iSYq3p74.jpg?fit=1280%2C720&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/pe2HPl-w5","_links":{"self":[{"href":"https:\/\/www.cevikmedya.com\/wp-json\/wp\/v2\/posts\/1989"}],"collection":[{"href":"https:\/\/www.cevikmedya.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cevikmedya.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cevikmedya.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cevikmedya.com\/wp-json\/wp\/v2\/comments?post=1989"}],"version-history":[{"count":0,"href":"https:\/\/www.cevikmedya.com\/wp-json\/wp\/v2\/posts\/1989\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cevikmedya.com\/wp-json\/wp\/v2\/media\/1990"}],"wp:attachment":[{"href":"https:\/\/www.cevikmedya.com\/wp-json\/wp\/v2\/media?parent=1989"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cevikmedya.com\/wp-json\/wp\/v2\/categories?post=1989"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cevikmedya.com\/wp-json\/wp\/v2\/tags?post=1989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}