{"id":4519,"date":"2026-02-06T14:11:07","date_gmt":"2026-02-06T11:11:07","guid":{"rendered":"https:\/\/www.acccflagship.fi\/?p=4519"},"modified":"2026-02-06T14:15:19","modified_gmt":"2026-02-06T11:15:19","slug":"musta-hiili-on-yha-kysymysmerkki-ilmakehassa","status":"publish","type":"post","link":"https:\/\/www.acccflagship.fi\/index.php\/2026\/02\/06\/musta-hiili-on-yha-kysymysmerkki-ilmakehassa\/","title":{"rendered":"Musta hiili on yh\u00e4 kysymysmerkki ilmakeh\u00e4ss\u00e4"},"content":{"rendered":"\n

Ilmakeh\u00e4n musta hiili (Black Carb\u00f3n, BC) on merkitt\u00e4v\u00e4 ilmanlaatuun ja ilmastoon vaikuttava pienhiukkanen, johon liittyy yh\u00e4 huomattavia ep\u00e4varmuuksia. Juuri julkaistu kokoomatutkimus tuo uutta n\u00e4ytt\u00f6\u00e4 mustan hiilen vaihtelevista ominaisuuksista eri puolilla maapalloa ja tukee osaltaan EU:n uudistuvia ilmanlaatuvaatimuksia, joissa musta hiili nousee esiin t\u00e4rke\u00e4n\u00e4 t\u00e4ydent\u00e4v\u00e4n\u00e4 muuttujana. Tutkimuksessa kartoitettiin useiden eri tekij\u00f6iden (vuodenaika, mittausymp\u00e4rist\u00f6, k\u00e4ytetty menetelm\u00e4) vaikutusta mustan hiilen massan ja s\u00e4teilyominaisuudet yhdist\u00e4v\u00e4\u00e4n massa-absorptiokertoimeen ty\u00f6ss\u00e4 ker\u00e4tyn laajan (>200 mittaustulosta sis\u00e4lt\u00e4v\u00e4n) maailmanlaajuisen aineiston avulla. Tulokset korostavat vaihtelua, ja pitk\u00e4aikaisten havaintojen ja yhten\u00e4isten mittausk\u00e4yt\u00e4nt\u00f6jen merkityst\u00e4 mustan hiilen seurannassa, ja edelleen ilmastovaikutusten arvioinnissa.<\/p>\n\n\n\n

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Kuva: Shutterstock<\/figcaption><\/figure>\n\n\n\n

Kansainv\u00e4list\u00e4 tutkimusta rahoittivat eurooppalainen metrologiakumppanuus (22NRM02 STANBC) yhteisrahoitteisesti EU:n Horisontti Eurooppa -ohjelman ja t\u00e4h\u00e4n osallistuvien maiden panoksella, Suomen Akatemian Lippulaivaohjelma (ACCC) sek\u00e4 Kanadan hallitus. Lue lis\u00e4\u00e4…<\/a><\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Ilmakeh\u00e4n musta hiili (Black Carb\u00f3n, BC) on merkitt\u00e4v\u00e4 ilmanlaatuun ja ilmastoon vaikuttava pienhiukkanen, johon liittyy yh\u00e4 huomattavia ep\u00e4varmuuksia. Juuri julkaistu kokoomatutkimus tuo uutta n\u00e4ytt\u00f6\u00e4 mustan hiilen vaihtelevista ominaisuuksista eri puolilla maapalloa ja tukee osaltaan EU:n uudistuvia ilmanlaatuvaatimuksia, joissa musta hiili nousee esiin t\u00e4rke\u00e4n\u00e4 t\u00e4ydent\u00e4v\u00e4n\u00e4 muuttujana. Tutkimuksessa kartoitettiin useiden eri tekij\u00f6iden (vuodenaika, mittausymp\u00e4rist\u00f6, k\u00e4ytetty menetelm\u00e4) vaikutusta […]<\/p>\n","protected":false},"author":1,"featured_media":2541,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_vp_format_video_url":"","_vp_image_focal_point":{"x":0.5,"y":0.5500000000000000444089209850062616169452667236328125},"footnotes":""},"categories":[140,25],"tags":[55],"class_list":["post-4519","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-impact-en","category-uncategorized-en","tag-accc"],"featured_image_src":"https:\/\/www.acccflagship.fi\/wp-content\/uploads\/ACCC-news-1.png","author_info":{"display_name":"mkulmala","author_link":"https:\/\/www.acccflagship.fi\/index.php\/author\/mkulmala\/"},"_links":{"self":[{"href":"https:\/\/www.acccflagship.fi\/index.php\/wp-json\/wp\/v2\/posts\/4519","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.acccflagship.fi\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.acccflagship.fi\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.acccflagship.fi\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.acccflagship.fi\/index.php\/wp-json\/wp\/v2\/comments?post=4519"}],"version-history":[{"count":2,"href":"https:\/\/www.acccflagship.fi\/index.php\/wp-json\/wp\/v2\/posts\/4519\/revisions"}],"predecessor-version":[{"id":4522,"href":"https:\/\/www.acccflagship.fi\/index.php\/wp-json\/wp\/v2\/posts\/4519\/revisions\/4522"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.acccflagship.fi\/index.php\/wp-json\/wp\/v2\/media\/2541"}],"wp:attachment":[{"href":"https:\/\/www.acccflagship.fi\/index.php\/wp-json\/wp\/v2\/media?parent=4519"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.acccflagship.fi\/index.php\/wp-json\/wp\/v2\/categories?post=4519"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.acccflagship.fi\/index.php\/wp-json\/wp\/v2\/tags?post=4519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}