{"id":3349,"date":"2014-12-04T11:15:45","date_gmt":"2014-12-04T11:15:45","guid":{"rendered":"http:\/\/www.123fakta.com\/da\/?p=3349"},"modified":"2026-03-19T10:38:22","modified_gmt":"2026-03-19T10:38:22","slug":"tosiasioita-vedesta","status":"publish","type":"post","link":"https:\/\/www.123fakta.com\/fi\/facts-about-water","title":{"rendered":"Tietoa vedest\u00e4 ja juomavedest\u00e4"},"content":{"rendered":"<ol>\n<li><strong>Painoero:<\/strong>\u00a0Kuuma vesi on kylm\u00e4\u00e4 vett\u00e4 raskaampaa<\/li>\n<li><strong>Keskiaika:<\/strong>\u00a0I Keskiajalla ihmiset joivat enemm\u00e4n olutta kuin vett\u00e4, koska useimmat vesil\u00e4hteet olivat saastuneita. Oluen alkoholipitoisuus oli kuitenkin alhaisempi kuin nykyisen oluen. Maito oli ainoa alkoholiton vaihtoehto vedelle.<\/li>\n<li><strong>Tuotanto:<\/strong>\u00a0Tarvitaan 170 litraa vett\u00e4, jotta saadaan \u00bd litraa olutta. Yhden puuvillaisen t-paidan valmistamiseen tarvitaan 2 720 litraa vett\u00e4 (vastaa keskivertoihmisen vedenkulutusta kolmen vuoden aikana).<\/li>\n<li class=\"no-mobile\"><strong>Kleopatra:<\/strong>\u00a0Nyky\u00e4\u00e4n juomasi vesi sis\u00e4lt\u00e4\u00e4 molekyylej\u00e4, joita my\u00f6s juonut <a href=\"https:\/\/www.123fakta.com\/fi\/faktoja-dinosauruksista\/\">dinosaurukset<\/a>, muinaiset ihmiset jne. Matemaattisen teorian mukaan on 100% todenn\u00e4k\u00f6isyys, ett\u00e4 yhdess\u00e4 vesilasissa on yksi molekyyli, jota my\u00f6s Kleopatra joi.<\/li>\n<li><strong>V\u00e4ri:<\/strong>\u00a0Veden luonnollinen v\u00e4ri on vaaleansininen (turkoosi), mik\u00e4 johtuu siit\u00e4, ett\u00e4 ihmissilm\u00e4 absorboi huonosti punaisen v\u00e4rin n\u00e4kyv\u00e4n spektrin alueella. Pienin\u00e4 m\u00e4\u00e4rin\u00e4 vesi n\u00e4ytt\u00e4\u00e4 meist\u00e4 v\u00e4ritt\u00f6m\u00e4lt\u00e4 (kuten vesilasi).<\/li>\n<li><strong>Mpemban vaikutus:<\/strong>\u00a0Tietyiss\u00e4 olosuhteissa kuuma vesi voi j\u00e4\u00e4ty\u00e4 nopeammin kuin kylm\u00e4 vesi.<\/li>\n<li><strong>Kulutus:<\/strong>\u00a02\/3 keskim\u00e4\u00e4r\u00e4isen kotitalouden vedest\u00e4 kuluu kylpyhuoneessa.<\/li>\n<li><strong>Vessa:<\/strong>\u00a0Keskim\u00e4\u00e4r\u00e4inen k\u00e4ym\u00e4l\u00e4 kuluttaa 6 litraa puhdasta juomavett\u00e4 yhdell\u00e4 huuhtelukerralla.<\/li>\n<li><strong>S\u00e4hk\u00f6johdin:<\/strong>\u00a0Vesi itsess\u00e4\u00e4n ei ole kovin hyv\u00e4 s\u00e4hk\u00f6\u00e4 johtava aine, mutta vedess\u00e4 olevat ep\u00e4puhtaudet ovat<\/li>\n<li><strong>Uima-allas:<\/strong>\u00a0Keskim\u00e4\u00e4r\u00e4isest\u00e4 uima-altaasta vapautuu haihtumisen ja muiden syiden vuoksi noin 3 785 litraa kuukaudessa.<\/li>\n<\/ol>\n<figure id=\"attachment_7250\" aria-describedby=\"caption-attachment-7250\" style=\"width: 1014px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7250 size-large\" src=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/2014\/12\/vandet-universet-2-1024x768.jpg\" alt=\"Fakta: Maailmankaikkeudessa on musta aukko, joka sis\u00e4lt\u00e4\u00e4 140 triljoonaa kertaa enemm\u00e4n vett\u00e4 kuin kaikki maailman valtameret.\" width=\"1024\" height=\"768\" srcset=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/2014\/12\/vandet-universet-2-1024x768.jpg 1024w, https:\/\/www.123fakta.com\/wp-content\/uploads\/2014\/12\/vandet-universet-2-300x225.jpg 300w, https:\/\/www.123fakta.com\/wp-content\/uploads\/2014\/12\/vandet-universet-2-768x576.jpg 768w, https:\/\/www.123fakta.com\/wp-content\/uploads\/2014\/12\/vandet-universet-2-16x12.jpg 16w, https:\/\/www.123fakta.com\/wp-content\/uploads\/2014\/12\/vandet-universet-2.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-7250\" class=\"wp-caption-text\">Attribuutio: NASA\/ESA<\/figcaption><\/figure>\n<p style=\"text-align: center;\"><em><strong>Avaruudessa on musta aukko, joka sis\u00e4lt\u00e4\u00e4 140 biljoonaa kertaa enemm\u00e4n vett\u00e4 kuin kaikki maapallon valtameret yhteens\u00e4. Kaikki mustan aukon vesi on vesih\u00f6yry\u00e4...<\/strong><\/em><\/p>\n<h2>Vesi maapallolla<\/h2>\n<ul>\n<li><strong>Suljettu silmukka<\/strong>Kaikki vesi maapallolla on suljetussa kierrossa (veden kiertokulussa), joten el\u00e4m\u00e4n alusta t\u00e4h\u00e4n p\u00e4iv\u00e4\u00e4n asti maapallolla on ollut jatkuvasti vett\u00e4.<\/li>\n<li><strong>L\u00e4mp\u00f6tilat<\/strong>: Vesi s\u00e4\u00e4telee maapallon l\u00e4mp\u00f6tilaa<\/li>\n<li><strong>Makea vesi<\/strong>: 3% maapallon vedest\u00e4 on makeaa vett\u00e4 ja 31% t\u00e4st\u00e4 makeasta vedest\u00e4 on ihmisten k\u00e4ytett\u00e4viss\u00e4.<\/li>\n<li><strong>Pohjavesi<\/strong>Jokaista maan pinnalla olevaa litraa makeaa vett\u00e4 kohti on 30 litraa maan alla (ns. pohjavesi).<\/li>\n<li><strong>Onko<\/strong>90% maapallon makeasta vedest\u00e4 on j\u00e4\u00e4t\u00e4 etel\u00e4navalla (Etel\u00e4mantereella).<\/li>\n<li><strong>Baikalj\u00e4rvi<\/strong>: 20% maapallon j\u00e4\u00e4tym\u00e4tt\u00f6m\u00e4st\u00e4 makeasta vedest\u00e4 on Baikal-j\u00e4rvess\u00e4 Ven\u00e4j\u00e4ll\u00e4.<\/li>\n<li><strong>Ruoka ja juomat<\/strong>: Ihmisen ruoantuotanto maapallolla vaatii 200 000 000 litraa vett\u00e4 sekunnissa.<\/li>\n<li><strong>Massa ja tilavuus<\/strong>: Veden osuus maapallon massasta on vain 0,07% ja tilavuudesta 0,4%.<\/li>\n<li><strong>Veden muodot<\/strong>Vesi on ainoa kemiallinen yhdiste, jota esiintyy maapallolla luonnossa kolmessa muodossaan: nesteen\u00e4, kaasuna ja kiinte\u00e4n\u00e4 (vesi, h\u00f6yry ja j\u00e4\u00e4).<\/li>\n<\/ul>\n<h2>Vesi ja ihmiskeho<\/h2>\n<ul>\n<li><strong>Veden saanti<\/strong>Yleinen suositeltu vedensaantisuositus on 3 litraa miehille ja 2,2 litraa naisille. Yksil\u00f6llinen nestetarpeemme riippuu kuitenkin useista sis\u00e4isist\u00e4 tekij\u00f6ist\u00e4 (paino, ik\u00e4, perim\u00e4 jne.) ja ulkoisista tekij\u00f6ist\u00e4 (s\u00e4\u00e4, l\u00e4mp\u00f6tila, ymp\u00e4rist\u00f6 jne.) sek\u00e4 fyysisest\u00e4 aktiivisuudesta.<\/li>\n<li><strong>Vesi elimist\u00f6ss\u00e4<\/strong>Ihmisen aikuinen koostuu 50 - 65% vedest\u00e4. Vastasyntynyt vauva koostuu 75% vedest\u00e4.<\/li>\n<li><strong>Bones<\/strong>: Ihmiskehon luut koostuvat 31% vedest\u00e4.<\/li>\n<li><strong>Aivot<\/strong>: Aivot koostuvat 85% vedest\u00e4...<\/li>\n<li><strong>Lihakset<\/strong>: Lihakset ja munuaiset sis\u00e4lt\u00e4v\u00e4t 79% vett\u00e4.<\/li>\n<li><strong>Keuhkot<\/strong>: Keuhkot koostuvat 83% vedest\u00e4.<\/li>\n<li><strong>Iho<\/strong>: Iho sis\u00e4lt\u00e4\u00e4 64% vett\u00e4<\/li>\n<li><strong>Nesteen menetys<\/strong>Kovan fyysisen aktiivisuuden (kuten liikunnan) aikana ja erityisesti kuumalla s\u00e4\u00e4ll\u00e4 keho menett\u00e4\u00e4 useita litroja vett\u00e4. Siksi painat tyypillisesti v\u00e4hemm\u00e4n aktiviteetin j\u00e4lkeen<\/li>\n<\/ul>\n<h2>Tietoja vesimyrkytyksest\u00e4<\/h2>\n<ul>\n<li><strong>Syy<\/strong>: Jos juot enemm\u00e4n vett\u00e4 kuin kehosi voi eritt\u00e4\u00e4 hikoilun ja virtsan kautta, se voi johtaa vesimyrkytykseen. T\u00e4m\u00e4 johtuu siit\u00e4, ett\u00e4 liiallinen vesim\u00e4\u00e4r\u00e4 v\u00e4hent\u00e4\u00e4 veren suolapitoisuutta.<\/li>\n<li><strong>Oireet ja oireet<\/strong>Useimmissa tapauksissa oireet ovat liev\u00e4\u00e4 huimausta ja huonovointisuutta, mutta on esimerkkej\u00e4 ihmisist\u00e4, jotka ovat joutuneet koomaan ja jopa kuolleet vesimyrkytykseen.<\/li>\n<li><strong>Veden m\u00e4\u00e4r\u00e4<\/strong>Ei ole m\u00e4\u00e4ritetty rajaa sille, kuinka paljon vett\u00e4 tarvitaan vesimyrkytyksen saamiseksi, mutta 3 litraa voi riitt\u00e4\u00e4 tapauksissa, joissa 1) juot vett\u00e4 nopeasti, 2) et kuluta tarpeeksi suolaa ja 3) et erit\u00e4 vett\u00e4 riitt\u00e4v\u00e4n nopeasti.<\/li>\n<li><strong>Ennaltaehk\u00e4isy<\/strong>: Kunhan huolehdit normaalista suolaisesta ruokavaliosta ja juot riitt\u00e4v\u00e4sti vett\u00e4, sinulla ei yleens\u00e4 ole (tai on hyvin pieni) riski saada vesimyrkytys.<\/li>\n<\/ul>\n<h2>Maailman juomavesiongelmat<\/h2>\n<ul>\n<li><strong>Kuolinsyy<\/strong>: 3,4 miljoonaa ihmist\u00e4 kuolee vuosittain veteen liittyviin syihin (p\u00e4\u00e4asiassa saastuneen juomaveden ja veden saannin puutteen vuoksi). 99% kaikista uhreista on kehitysmaiden asukkaita.<\/li>\n<li><strong>Kiina<\/strong>: Noin 700 miljoonaa kiinalaista juo saastunutta juomavett\u00e4<\/li>\n<li><strong>Kulutusero<\/strong>Viiden minuutin suihkussa kuluu enemm\u00e4n vett\u00e4 kuin keskiverto kehitysmaan slummissa asuva ihminen k\u00e4ytt\u00e4\u00e4 koko p\u00e4iv\u00e4n aikana.<\/li>\n<\/ul>\n<figure id=\"attachment_7251\" aria-describedby=\"caption-attachment-7251\" style=\"width: 690px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-7251 size-full\" src=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/2014\/12\/vand-fakta-2.jpg\" alt=\"Fakta: N\u00e4k\u00f6mme antaa vedelle sen sinert\u00e4v\u00e4n v\u00e4rin.\" width=\"700\" height=\"464\" srcset=\"https:\/\/www.123fakta.com\/wp-content\/uploads\/2014\/12\/vand-fakta-2.jpg 700w, https:\/\/www.123fakta.com\/wp-content\/uploads\/2014\/12\/vand-fakta-2-300x199.jpg 300w, https:\/\/www.123fakta.com\/wp-content\/uploads\/2014\/12\/vand-fakta-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><figcaption id=\"caption-attachment-7251\" class=\"wp-caption-text\">Attribuutio: Pixabay.com<\/figcaption><\/figure>\n<p style=\"text-align: center;\"><em><strong>Fakta: Vesi n\u00e4ytt\u00e4\u00e4 ihmissilm\u00e4lle vaaleansiniselt\u00e4, koska n\u00e4kyv\u00e4n spektrin punaisen v\u00e4rin absorptio on v\u00e4h\u00e4ist\u00e4.<\/strong><\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>Painoero: Keskiajalla: Keskiajalla ihmiset joivat enemm\u00e4n olutta kuin vett\u00e4, koska useimmat vesil\u00e4hteet olivat saastuneita. Oluen alkoholipitoisuus oli kuitenkin alhaisempi kuin nykyoluen. Maito oli ainoa alkoholiton vaihtoehto vedelle Tuotanto: \u00bd litran oluen valmistamiseen tarvitaan 170 litraa vett\u00e4. Jotta ... <a title=\"Tietoa vedest\u00e4 ja juomavedest\u00e4\" class=\"read-more\" href=\"https:\/\/www.123fakta.com\/fi\/facts-about-water\" aria-label=\"Lue lis\u00e4\u00e4 aiheesta Faktoja vedest\u00e4 ja juomavedest\u00e4\">Lue lis\u00e4\u00e4<\/a><\/p>","protected":false},"author":1,"featured_media":7253,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"cybocfi_hide_featured_image":"","footnotes":""},"categories":[66],"tags":[120],"class_list":["post-3349","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-miscellaneous","tag-adsense"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Facts about water and drinking water - 25 interesting facts<\/title>\n<meta name=\"description\" content=\"Fact: Water you drink today contains molecules that have been drunk by dinosaurs. 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