{"id":5485,"date":"2017-09-26T13:10:39","date_gmt":"2017-09-26T11:10:39","guid":{"rendered":"http:\/\/www.ub.edu\/plasostenibilitat\/?p=3279"},"modified":"2023-03-20T08:27:18","modified_gmt":"2023-03-20T08:27:18","slug":"laigua-virtual-el-consum-ocult-eco2-0-52","status":"publish","type":"post","link":"https:\/\/www.ub.edu\/ossma\/es\/actualitat-medi-ambient\/laigua-virtual-el-consum-ocult-eco2-0-52","title":{"rendered":"L\u2019aigua virtual: el consum ocult (Eco2.0-52)"},"content":{"rendered":"\n<p>Saps quanta aigua consumeixes cada dia? Cada barcelon\u00ed consumeix una mitjana de 100 litres d&#8217;aigua al dia que utilitza per dutxar-se, netejar, cuinar, entre d&#8217;altres. A m\u00e9s de l&#8217;aigua emprada en les activitats quotidianes, se&#8217;ns recomana beure uns 2 litres d&#8217;aigua al dia.<\/p>\n\n\n\n<p>Per\u00f2 realment \u00e9s aquesta tota l&#8217;aigua que consumim? Doncs no, perqu\u00e8 tamb\u00e9 cal sumar-hi la quantitat d&#8217;aigua necess\u00e0ria per produir els aliments que consumim al llarg del dia, que pot arribar a ser d&#8217;uns 2.000 o 3.000 litres, i l&#8217;aigua utilitzada en la fabricaci\u00f3 dels productes que comprem, com ara roba o aparells electr\u00f2nics.<\/p>\n\n\n\n<p>Per tant, quan calculem quin \u00e9s el nostre consum no hem de pensar nom\u00e9s en la factura d&#8217;aigua, sin\u00f3 que tamb\u00e9 hi ha un consum indirecte totalment ocult que no \u00e9s present, per exemple, a l&#8217;etiquetatge dels productes. Aquest concepte rep el nom d&#8217;<strong>aigua virtual o oculta<\/strong>, i es defineix com <strong>l&#8217;aigua necess\u00e0ria per produir un b\u00e9 o un servei<\/strong>.<\/p>\n\n\n\n<p>En el cas de la producci\u00f3 d&#8217;aliments, l&#8217;aigua \u00e9s essencial per tasques tan diverses com regar els camps de conreu, cobrir les necessitats h\u00eddriques dels animals o netejar les instal\u00b7lacions. Cal tenir en compte que el consum d&#8217;aigua d&#8217;un mateix producte pot variar segons la climatologia, el tipus de s\u00f2l, les t\u00e8cniques de cultiu utilitzades, etc. Aix\u00ed doncs, depenent del pa\u00eds on es produeix l&#8217;aliment, l&#8217;aigua virtual associada pot veure&#8217;s incrementada considerablement.<\/p>\n\n\n\n<p>A continuaci\u00f3 us mostrem exemples de l&#8217;aigua necess\u00e0ria per a produir diferents productes alimentaris.<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone wp-image-6481 size-full advgb-dyn-600a76be\"><img fetchpriority=\"high\" decoding=\"async\" width=\"656\" height=\"400\" src=\"https:\/\/www.ub.edu\/ossma\/wp-content\/uploads\/2017\/09\/aiguavirtual.jpg\" alt=\"aigua virtual. Representacio de quant litres fan falta per generar diferents aliments\" class=\"wp-image-6481\" srcset=\"https:\/\/www.ub.edu\/ossma\/wp-content\/uploads\/2017\/09\/aiguavirtual.jpg 656w, https:\/\/www.ub.edu\/ossma\/wp-content\/uploads\/2017\/09\/aiguavirtual-300x183.jpg 300w\" sizes=\"(max-width: 656px) 100vw, 656px\" \/><figcaption class=\"wp-element-caption\">Exemples de valors mitjans d\u2019aigua virtual de diferents productes alimentaris. Font: elaboraci\u00f3 pr\u00f2pia a partir de les dades de www.waterfootprint.org<\/figcaption><\/figure>\n\n\n\n<p>A part dels aliments, tota la resta de productes tamb\u00e9 tenen associat un consum ocult d&#8217;aigua. En un ecoconsell anterior vam parlar de <a href=\"https:\/\/www.ub.edu\/ossma\/medi-ambient\/quant-consumeix-la-teva-roba-eco2-0-24\/\" data-type=\"post\" data-id=\"5419\">quant consumeix la teva roba<\/a>, on vam destacar que s&#8217;estima que per fabricar una samarreta de cot\u00f3 es necessiten uns 2.900 litres d&#8217;aigua, i per a uns pantalons texans calen 11.800 litres. Aqu\u00ed s&#8217;inclouen els litres que calen per cultivar el cot\u00f3, fabricar el teixit a partir de les mat\u00e8ries primeres, l&#8217;estampaci\u00f3 i tinci\u00f3 de la roba, el transport, la quantitat d&#8217;aigua que el consumidor utilitza amb les rentadores, i la gesti\u00f3 dels residus.<\/p>\n\n\n\n<div class=\"wp-block-columns destacat is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Qu\u00e8 podem fer per reduir el consum d&#8217;aigua virtual?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Consumeix productes de proximitat, on el consum d&#8217;aigua associat al seu transport \u00e9s menor.<\/li>\n\n\n\n<li>Compra productes ecol\u00f2gics, ja que en la seva elaboraci\u00f3 s&#8217;utilitzen t\u00e8cniques amb un menor consum d&#8217;aigua.<\/li>\n\n\n\n<li>No <a href=\"https:\/\/www.ub.edu\/ossma\/medi-ambient\/el-malbaratament-alimentari-eco2-0-6\/\">malbaratis els aliments<\/a>. Produir-los requereix una quantitat elevada d&#8217;aigua.<\/li>\n\n\n\n<li>Intenta mantenir una dieta equilibrada on predominin els productes vegetals i frescs. L&#8217;aigua virtual dels productes de proced\u00e8ncia animal i dels aliments processats acostuma a ser m\u00e9s elevada.<\/li>\n\n\n\n<li>Fes un consum responsable. Compra nom\u00e9s all\u00f2 que necessitis per reduir la teva <a href=\"https:\/\/ca.wikipedia.org\/wiki\/Consum_d%27aigua\" target=\"_blank\" rel=\"noreferrer noopener\">petjada h\u00eddrica<\/a>.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\"><\/ul>\n\n\n\n<ul class=\"wp-block-list\"><\/ul>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">M\u00e9s informaci\u00f3<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a rel=\"noopener noreferrer\" href=\"http:\/\/waterfootprint.org\/en\/resources\/interactive-tools\/product-gallery\/\" target=\"_blank\">Product water footprint: product gallery<\/a>. Water Footprint Network.<\/li>\n\n\n\n<li><a href=\"http:\/\/www.unescocat.org\/fitxer\/3444\/aiguavirtual_\" target=\"_blank\" rel=\"noopener noreferrer\">Jornada escolar Aigua Virtual<\/a>. Museu Agbar de les Aig\u00fces. Centre UNESCO de Catalunya, 2010.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Saps quanta aigua consumeixes cada dia? Cada barcelon\u00ed consumeix una mitjana de 100 litres d\u2019aigua al dia que utilitza per dutxar-se, netejar, cuinar, entre d\u2019altres.<\/p>\n","protected":false},"author":1,"featured_media":62,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":""},"categories":[20],"tags":[72,89,98,25,124,127,28],"class_list":["post-5485","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualitat-medi-ambient","tag-aigua","tag-alimentacio","tag-consum-responsable","tag-ecoconsells","tag-ods12","tag-ods6","tag-recursos"],"author_meta":{"display_name":"OSSMA","author_link":"https:\/\/www.ub.edu\/ossma\/es\/author\/ossmau1"},"featured_img":"https:\/\/www.ub.edu\/ossma\/wp-content\/uploads\/2016\/02\/ecoconsells.jpg","coauthors":[],"tax_additional":{"categories":{"linked":["<a href=\"https:\/\/www.ub.edu\/ossma\/es\/actualitat-medi-ambient\" class=\"advgb-post-tax-term\">Medi Ambient<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">Medi Ambient<\/span>"]},"tags":{"linked":["<a href=\"https:\/\/www.ub.edu\/ossma\/es\/actualitat-medi-ambient\" class=\"advgb-post-tax-term\">aigua<\/a>","<a href=\"https:\/\/www.ub.edu\/ossma\/es\/actualitat-medi-ambient\" class=\"advgb-post-tax-term\">alimentaci\u00f3<\/a>","<a href=\"https:\/\/www.ub.edu\/ossma\/es\/actualitat-medi-ambient\" class=\"advgb-post-tax-term\">consum responsable<\/a>","<a href=\"https:\/\/www.ub.edu\/ossma\/es\/actualitat-medi-ambient\" class=\"advgb-post-tax-term\">ecoconsells<\/a>","<a href=\"https:\/\/www.ub.edu\/ossma\/es\/actualitat-medi-ambient\" class=\"advgb-post-tax-term\">ods12<\/a>","<a href=\"https:\/\/www.ub.edu\/ossma\/es\/actualitat-medi-ambient\" class=\"advgb-post-tax-term\">ods6<\/a>","<a href=\"https:\/\/www.ub.edu\/ossma\/es\/actualitat-medi-ambient\" class=\"advgb-post-tax-term\">recursos<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">aigua<\/span>","<span class=\"advgb-post-tax-term\">alimentaci\u00f3<\/span>","<span class=\"advgb-post-tax-term\">consum responsable<\/span>","<span class=\"advgb-post-tax-term\">ecoconsells<\/span>","<span class=\"advgb-post-tax-term\">ods12<\/span>","<span class=\"advgb-post-tax-term\">ods6<\/span>","<span class=\"advgb-post-tax-term\">recursos<\/span>"]}},"comment_count":"0","relative_dates":{"created":"Publicado 9 a\u00f1os hace","modified":"Actualizado 3 a\u00f1os hace"},"absolute_dates":{"created":"Publicado el 26 de septiembre de 2017","modified":"Actualizado el 20 de marzo de 2023"},"absolute_dates_time":{"created":"Publicado el 26 de septiembre de 2017 13:10","modified":"Actualizado el 20 de marzo de 2023 08:27"},"featured_img_caption":"","series_order":"","_links":{"self":[{"href":"https:\/\/www.ub.edu\/ossma\/es\/wp-json\/wp\/v2\/posts\/5485","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ub.edu\/ossma\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ub.edu\/ossma\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ub.edu\/ossma\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ub.edu\/ossma\/es\/wp-json\/wp\/v2\/comments?post=5485"}],"version-history":[{"count":7,"href":"https:\/\/www.ub.edu\/ossma\/es\/wp-json\/wp\/v2\/posts\/5485\/revisions"}],"predecessor-version":[{"id":46370,"href":"https:\/\/www.ub.edu\/ossma\/es\/wp-json\/wp\/v2\/posts\/5485\/revisions\/46370"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ub.edu\/ossma\/es\/wp-json\/wp\/v2\/media\/62"}],"wp:attachment":[{"href":"https:\/\/www.ub.edu\/ossma\/es\/wp-json\/wp\/v2\/media?parent=5485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ub.edu\/ossma\/es\/wp-json\/wp\/v2\/categories?post=5485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ub.edu\/ossma\/es\/wp-json\/wp\/v2\/tags?post=5485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}