Els Residus en un laboratori de secundària. Les 3 R + S de salut Authors Sílvia Careta Burdó Aina Solà i Rodrigo Miquel Erra Abstract Day after day, there can be an accumulation of quite lot reagents in the secondary school labs. These reagents can have a mid or high toxic level and are a hazard to our health. These reagents also generate wastes that are high in cost to treat. Sometimes, they are not collected properly and end up in the drain. Replacing these reagents while still doing experiments, working at a micro scale, using green reagents, minimizing wastes and collecting them properly are protocols that should be followed. Downloads Text complet (Català) Published 2016-01-26 Issue No. 19 (2014) Section Intercanvi License The intellectual property of articles belongs to the respective authors.On submitting articles for publication to the journal Educació Química, authors accept the following terms:Authors assign to Societat Catalana de Química (a subsidiary of Institut d’Estudis Catalans) the rights of reproduction, communication to the public and distribution of the articles submitted for publication to Educació Química.Authors answer to Societat Catalana de Química for the authorship and originality of submitted articles.Authors are responsible for obtaining permission for the reproduction of all graphic material included in articles.Societat Catalana de Química declines all liability for the possible infringement of intellectual property rights by authors.The contents published in the journal, unless otherwise stated in the text or in the graphic material, are subject to a Creative Commons Attribution-NonCommercial-NoDerivs (by-nc-nd) 3.0 Spain licence, the complete text of which may be found at https://creativecommons.org/licenses/by-nc-nd/3.0/es/deed.en. Consequently, the general public is authorised to reproduce, distribute and communicate the work, provided that its authorship and the body publishing it are acknowledged, and that no commercial use and no derivative works are made of it.Educació Química is not responsible for the ideas and opinions expressed by the authors of the published articles.