{"id":8403,"date":"2016-02-29T16:49:00","date_gmt":"2016-02-29T15:49:00","guid":{"rendered":"http:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/general\/propietats-quimiques-de-laigua\/"},"modified":"2016-07-11T11:21:57","modified_gmt":"2016-07-11T10:21:57","slug":"propietats-quimiques-de-laigua","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/general\/propietats-quimiques-de-laigua\/","title":{"rendered":"Propietats qu\u00edmiques de l&#8217;aigua"},"content":{"rendered":"<p><strong>INS Ramon Casas i Carb\u00f3, Palau Solit\u00e0 i Plegamans<\/strong><br \/>\n<a href=\"http:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-content\/uploads\/usu1369\/2016\/02\/ypmy77bl.bmp\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-8547 aligncenter\" src=\"http:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-content\/uploads\/usu1369\/2016\/02\/ypmy77bl.bmp\" alt=\"ypmy77bl\" width=\"240\" height=\"320\" \/><\/a><\/p>\n<p>Encetem la temporada d&#8217;estades al CdA de la Vall de Bo\u00ed amb els\/les alumnes de segon de batxillerat de l&#8217;Institut Ramon Casas i Carb\u00f3, que han passat una setmana amb nosaltres treballant un ampli ventall d&#8217;activitats relacionades amb el medi natural: c\u00e0lcul de la biomassa d&#8217;un bosc, rendiment fotosint\u00e8tic i propietats dels pigments fotosint\u00e8tics, GPS i orientaci\u00f3 i tamb\u00e9 la qualitat de l&#8217;aigua del riu Noguera de Tor al seu pas per Barruera. La proposta d&#8217;investigaci\u00f3 que fem des del CdA \u00e9s l&#8217;an\u00e0lisi integral de la qualitat del riu, el seu estat ecol\u00f2gic. Per arribar a conclusions, estudiem l&#8217;ecosistema fluvial des de tres punts de vista: el biol\u00f2gic, l&#8217;hidromorfol\u00f2gic i el fisicoqu\u00edmic.<\/p>\n<figure id=\"attachment_8548\" aria-describedby=\"caption-attachment-8548\" style=\"width: 320px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-content\/uploads\/usu1369\/2016\/02\/e3px36az.bmp\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-8548 size-full\" src=\"http:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-content\/uploads\/usu1369\/2016\/02\/e3px36az.bmp\" alt=\"e3px36az\" width=\"320\" height=\"240\" \/><\/a><figcaption id=\"caption-attachment-8548\" class=\"wp-caption-text\">valoraci\u00f3 de l&#8217;alcalinitat total de la mostra d&#8217;aigua<\/figcaption><\/figure>\n<p>Avui ens centrarem en l&#8217;estudi a nivell de propietats fisicoqu\u00edmiques que hem fet. La Noguera de Tor, que recull les aig\u00fces que davallen de la Ribera de Sant Nicolau i de la riera de Caldes, directes d&#8217;Aig\u00fcestortes, transcorre tota la Vall de Bo\u00ed enriquint les seves aig\u00fces al seu pas pels diferents substrats geol\u00f2gics que conformen la Vall. Tamb\u00e9 influiran en les seves propietats fisicoqu\u00edmiques la vessant per on discorrin les aig\u00fces que acull i les diferents fonts antr\u00f2piques de contaminaci\u00f3 que tamb\u00e9 aporten elements a l&#8217;aigua.<\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_8549\" aria-describedby=\"caption-attachment-8549\" style=\"width: 240px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-content\/uploads\/usu1369\/2016\/02\/shtqt17u.bmp\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-8549 size-full\" src=\"http:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-content\/uploads\/usu1369\/2016\/02\/shtqt17u.bmp\" alt=\"shtqt17u\" width=\"240\" height=\"320\" \/><\/a><figcaption id=\"caption-attachment-8549\" class=\"wp-caption-text\">colorimetria per determinar el PH de la mostra<\/figcaption><\/figure>\n<p><a href=\"http:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-content\/uploads\/usu1369\/2016\/02\/shtqt17u.bmp\"><br \/>\n<\/a><br \/>\nHem analitzat tot un ventall de par\u00e0metres fisicoqu\u00edmiques de diferents mostres d&#8217;aigua, recollides a diferents punts de la llera del riu. Com es que tenim aig\u00fces tan riques en clorurs aqu\u00ed a la Vall, quan no hi ha roques com l&#8217;halita o la silvina que serien la font natural de clorurs? Per qu\u00e8 les aig\u00fces que venen de la central hidroel\u00e8ctrica, les que venen directament d&#8217;Aig\u00fcestortes, tenen uns nivells tan baixos d&#8217;alcalinitat? Podem saber d&#8217;on provenen les aig\u00fces de les basses laterals del riu sol observant la seva composici\u00f3 qu\u00edmica? Totes aquestes preguntes han estat resoltes sense cap mena de dubte despres d&#8217;una jornada molt completa de treball de camp, laboratori i discussi\u00f3 a l&#8217;aula.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>INS Ramon Casas i Carb\u00f3, Palau Solit\u00e0 i Plegamans Encetem la temporada d&#8217;estades al CdA de la Vall de Bo\u00ed [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8547,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"","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":"default","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":""}},"footnotes":""},"categories":[1,29],"tags":[],"class_list":["post-8403","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","category-portada"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-json\/wp\/v2\/posts\/8403","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-json\/wp\/v2\/comments?post=8403"}],"version-history":[{"count":3,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-json\/wp\/v2\/posts\/8403\/revisions"}],"predecessor-version":[{"id":8551,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-json\/wp\/v2\/posts\/8403\/revisions\/8551"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-json\/wp\/v2\/media\/8547"}],"wp:attachment":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-json\/wp\/v2\/media?parent=8403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-json\/wp\/v2\/categories?post=8403"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-valldeboi\/wp-json\/wp\/v2\/tags?post=8403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}