{"id":2252,"date":"2023-02-07T09:14:54","date_gmt":"2023-02-07T08:14:54","guid":{"rendered":"https:\/\/www.dmr.as\/?page_id=2252"},"modified":"2023-02-07T12:38:59","modified_gmt":"2023-02-07T11:38:59","slug":"syredannende-bergarter","status":"publish","type":"page","link":"https:\/\/www.dmr.as\/forurenset-grunn\/syredannende-bergarter\/","title":{"rendered":"Syredannende bergarter"},"content":{"rendered":"\n<p>Syredannende bergarter, som svartskifer (alunskifer) og sur gneis, kan v\u00e6re skadelig for milj\u00f8et, bygninger og infrastruktur dersom de h\u00e5ndteres feil.&nbsp;<\/p>\n\n\n\n<p>Deres problematiske egenskaper inkluderer:&nbsp;<\/p>\n\n\n\n<ul>\n<li>omdanning til svovelsyre ved kontakt med luft og vann,&nbsp;<\/li>\n\n\n\n<li>svovelsyren kan \u00f8delegge betong- og st\u00e5lkonstruksjoner,<\/li>\n\n\n\n<li>svelling av bergarten p\u00e5 grunn av overgang til sulfater, noe som kan gi skader p\u00e5 grunnmur og kjellere,<\/li>\n\n\n\n<li>avrenning av helse- og milj\u00f8skadelige tungmetaller og radioaktive stoffer.&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>Alunskifer er den mest kjente syredannende bergarten, men andre leirskifere, noen gneiser og sulfidrike bergarter regnes ogs\u00e5 som syredannende. De fleste omr\u00e5dene med alunskifer ligger i Oslofeltet, mens sur gneis er s\u00e6rlig kjent fra S\u00f8rlandet og sulfidrike bergarter er vanlige i Tr\u00f8ndelag og Nordland.&nbsp;<\/p>\n\n\n\n<p>Riktig h\u00e5ndtering er viktig for \u00e5 beskytte mennesker, milj\u00f8 og infrastruktur.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"683\" height=\"512\" src=\"https:\/\/www.dmr.as\/wp-content\/uploads\/sites\/3\/IMG_20171020_134657-683x512.jpg\" alt=\"\" class=\"wp-image-2257\" srcset=\"https:\/\/www.dmr.as\/wp-content\/uploads\/sites\/3\/IMG_20171020_134657-683x512.jpg 683w, https:\/\/www.dmr.as\/wp-content\/uploads\/sites\/3\/IMG_20171020_134657-233x175.jpg 233w, https:\/\/www.dmr.as\/wp-content\/uploads\/sites\/3\/IMG_20171020_134657-768x576.jpg 768w, https:\/\/www.dmr.as\/wp-content\/uploads\/sites\/3\/IMG_20171020_134657-1536x1152.jpg 1536w, https:\/\/www.dmr.as\/wp-content\/uploads\/sites\/3\/IMG_20171020_134657-2048x1536.jpg 2048w, https:\/\/www.dmr.as\/wp-content\/uploads\/sites\/3\/IMG_20171020_134657-600x450.jpg 600w\" sizes=\"(max-width: 683px) 100vw, 683px\" \/><\/figure>\n\n\n\n<p>DMR Milj\u00f8 og Geoteknikk kan bist\u00e5 med kartlegging av syredannende berggrunn, og gi r\u00e5d for hvordan slike forekomster skal h\u00e5ndteres.<\/p>\n\n\n\n<p>Kontakt gjerne DMR for r\u00e5dgivning eller konkrete tilbud.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-layout-1 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><div class=\"_03ebebe80c96f3ca519f139374914c8b\"><br\/><div class=\"container\"><div class=\"row\">\n<div class=\"col-xs-12 col-sm-12 col-md-12 col-lg-12 drx_vcard\" style=\"padding:0 0 15px 0;\">\n\t<div class=\"container\">\n\t\t<div class=\"row\">\n\t\t\t<div class=\"col-3 col-sm-3 col-md-3\" style=\"padding:0;\">\n\t\t\t\t<div style=\"z-index:200;background-image: url('https:\/\/www.dmr.as\/wp-content\/uploads\/sites\/3\/Per_kvadratisk-150x150.jpg');width: 100%; padding-bottom: 100%; background-size: cover; background-position: center;\"><\/div>\n\t\t\t<\/div>\n\t\t\t<div class=\"col-9 col-sm-9 col-md-9\" style=\"overflow: hidden; text-overflow: ellipsis; white-space: nowrap;\">\n\t\t\t\t<b>Per Christian Ekre<\/b><br\/>\n\t\t\t\t<span style=\"font-size:.8em;\">Fagsjef, milj\u00f8geolog<\/span><br\/><a href=\"tel:+4790551625\" rel=\"nofollow\"><i class=\"fa fa-phone\" aria-hidden=\"true\"><\/i> +47 905 51 625<\/a><br\/><a href=\"mailto:pce@dmr.as\"><i class=\"fa fa-envelope\" aria-hidden=\"true\"><\/i> E-mail<\/a>\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n<\/div><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Syredannende bergarter, som svartskifer (alunskifer) og sur gneis, kan v\u00e6re skadelig for milj\u00f8et, bygninger og infrastruktur dersom de h\u00e5ndteres feil.\u00a0<\/p>\n","protected":false},"author":317,"featured_media":2255,"parent":82,"menu_order":12,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[],"_links":{"self":[{"href":"https:\/\/www.dmr.as\/wp-json\/wp\/v2\/pages\/2252"}],"collection":[{"href":"https:\/\/www.dmr.as\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.dmr.as\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.dmr.as\/wp-json\/wp\/v2\/users\/317"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dmr.as\/wp-json\/wp\/v2\/comments?post=2252"}],"version-history":[{"count":4,"href":"https:\/\/www.dmr.as\/wp-json\/wp\/v2\/pages\/2252\/revisions"}],"predecessor-version":[{"id":2261,"href":"https:\/\/www.dmr.as\/wp-json\/wp\/v2\/pages\/2252\/revisions\/2261"}],"up":[{"embeddable":true,"href":"https:\/\/www.dmr.as\/wp-json\/wp\/v2\/pages\/82"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dmr.as\/wp-json\/wp\/v2\/media\/2255"}],"wp:attachment":[{"href":"https:\/\/www.dmr.as\/wp-json\/wp\/v2\/media?parent=2252"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dmr.as\/wp-json\/wp\/v2\/categories?post=2252"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}