{"id":26792,"date":"2026-11-09T15:01:34","date_gmt":"2026-11-09T15:01:34","guid":{"rendered":"https:\/\/sgciafrica.org\/investigadores-marfinenses-desenvolvem-solucoes-para-os-danos-da-mineracao-ilegal-de-ouro\/"},"modified":"2026-11-09T15:02:22","modified_gmt":"2026-11-09T15:02:22","slug":"investigadores-marfinenses-desenvolvem-solucoes-para-os-danos-da-mineracao-ilegal-de-ouro","status":"publish","type":"post","link":"https:\/\/sgciafrica.org\/pt\/investigadores-marfinenses-desenvolvem-solucoes-para-os-danos-da-mineracao-ilegal-de-ouro\/","title":{"rendered":"Investigadores marfinenses desenvolvem solu\u00e7\u00f5es para os danos da minera\u00e7\u00e3o ilegal de ouro"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Tecnologias desenvolvidas localmente para detetar metais pesados na \u00e1gua e recuperar terras agr\u00edcolas contaminadas poder\u00e3o ajudar a C\u00f4te d\u2019Ivoire a enfrentar as consequ\u00eancias ambientais e de sa\u00fade p\u00fablica da minera\u00e7\u00e3o ilegal de ouro.<\/p>\n\n<p class=\"wp-block-paragraph\">A minera\u00e7\u00e3o ilegal de ouro afetou 29 das 31 regi\u00f5es da C\u00f4te d\u2019Ivoire, amea\u00e7ando os recursos h\u00eddricos, as terras agr\u00edcolas e a sa\u00fade p\u00fablica, ao mesmo tempo que custa ao pa\u00eds milhares de milh\u00f5es de francos CFA em receitas perdidas.<\/p>\n\n<p class=\"wp-block-paragraph\">Bernard Ossey Yapo, diretor do Centro Marfinense Anti-Polui\u00e7\u00e3o (CIAPOL), destacou as consequ\u00eancias ambientais e para a sa\u00fade das atividades mineiras n\u00e3o controladas.<\/p>\n\n<p class=\"wp-block-paragraph\">\u201cCom perdas fiscais anuais estimadas em 744 mil milh\u00f5es de FCFA e ouro extra\u00eddo fora dos canais oficiais avaliado em 4.600 mil milh\u00f5es de FCFA, a dimens\u00e3o do problema est\u00e1 a levar a apelos por solu\u00e7\u00f5es que v\u00e3o al\u00e9m do encerramento de locais de minera\u00e7\u00e3o ilegal e da instaura\u00e7\u00e3o de processos contra os infratores\u201d, afirmou.<\/p>\n\n<p class=\"wp-block-paragraph\">As opera\u00e7\u00f5es mineiras, em particular a dragagem e a lavagem, aumentaram os n\u00edveis de sedimentos nos rios, com s\u00f3lidos em suspens\u00e3o a atingirem 12.030 miligramas por litro no rio N&#8217;Zi. Metais pesados, incluindo chumbo, cr\u00f3mio e ars\u00e9nio, tamb\u00e9m foram encontrados em n\u00edveis preocupantes em alguns locais, incluindo Daoukro.<\/p>\n\n<p class=\"wp-block-paragraph\">O uso ilegal de cianeto e a cont\u00ednua depend\u00eancia do merc\u00fario na extra\u00e7\u00e3o de ouro agravam ainda mais o problema. O merc\u00fario \u00e9 particularmente perigoso porque pode acumular-se em organismos vivos e deslocar-se ao longo da cadeia alimentar, expondo comunidades que dependem de peixe e \u00e1gua contaminados.<\/p>\n\n<p class=\"wp-block-paragraph\">Ossey Yapo afirmou que a exposi\u00e7\u00e3o prolongada a estes poluentes pode causar intoxica\u00e7\u00e3o cr\u00f3nica, problemas cut\u00e2neos graves e danos neurol\u00f3gicos, afetando em particular o desenvolvimento das crian\u00e7as que vivem perto de sistemas fluviais contaminados.<\/p>\n\n<p class=\"wp-block-paragraph\">Investigadores apoiados pelo <a href=\"https:\/\/fonsti.org\/petit-dejeuner-de-l-innovation-orpaillage-clandestin-et-illegal-en-cote-d-ivoire\/\">Fundo para a Ci\u00eancia, Tecnologia e Inova\u00e7\u00e3o (FONSTI)<\/a> est\u00e3o a desenvolver tecnologias para detetar e remover subst\u00e2ncias t\u00f3xicas da \u00e1gua e reabilitar terras danificadas pela minera\u00e7\u00e3o.<\/p>\n\n<p class=\"wp-block-paragraph\">As inova\u00e7\u00f5es foram apresentadas num Encontro \u201cInnovation Breakfast\u201d, organizado pelo FONSTI a 8 de outubro de 2026, no Hotel Azala\u00ef, em Abidjan.<\/p>\n\n<p class=\"wp-block-paragraph\">O encontro, subordinado ao tema <em>Minera\u00e7\u00e3o Ilegal e Clandestina de Ouro na C\u00f4te d&#8217;Ivoire: Da Emerg\u00eancia Ambiental a Solu\u00e7\u00f5es Inovadoras e Sustent\u00e1veis<\/em>, reuniu decisores pol\u00edticos, investigadores, autoridades tradicionais, representantes do setor mineiro e parceiros de desenvolvimento para explorar respostas pr\u00e1ticas \u00e0 crise.<\/p>\n\n<p class=\"wp-block-paragraph\"><strong>Tecnologias locais visam a contamina\u00e7\u00e3o da \u00e1gua<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Uma das iniciativas apoiadas pelo FONSTI, liderada por N&#8217;Dri Seiny Roger e a sua equipa de investiga\u00e7\u00e3o, centra-se no desenvolvimento de tecnologias acess\u00edveis para monitorizar e tratar \u00e1gua contaminada.<\/p>\n\n<p class=\"wp-block-paragraph\">Os investigadores desenvolveram sensores eletroqu\u00edmicos utilizando el\u00e9trodos modificados com p\u00f3 de sementes de <em>Moringa oleifera<\/em> ou argila. Os sensores conseguem detetar poluentes como merc\u00fario, chumbo e cianeto, oferecendo uma forma potencialmente acess\u00edvel de monitorizar a qualidade da \u00e1gua em comunidades afetadas pela minera\u00e7\u00e3o.<\/p>\n\n<p class=\"wp-block-paragraph\">A equipa desenvolveu tamb\u00e9m um sistema de filtra\u00e7\u00e3o ecol\u00f3gico que combina gravilha, carv\u00e3o ativado e biomassa de moringa. De acordo com os resultados do projeto apresentados no encontro, o sistema consegue remover entre 80 e 99% dos metais pesados da \u00e1gua contaminada antes de esta ser descarregada ou reutilizada.<\/p>\n\n<p class=\"wp-block-paragraph\">A utiliza\u00e7\u00e3o de materiais dispon\u00edveis localmente poder\u00e1 tornar a tecnologia uma op\u00e7\u00e3o custo-eficaz para comunidades e institui\u00e7\u00f5es que procuram monitorizar e gerir a polui\u00e7\u00e3o da \u00e1gua.<\/p>\n\n<p class=\"wp-block-paragraph\"><strong>Recuperar terras agr\u00edcolas danificadas pela minera\u00e7\u00e3o<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Um segundo projeto apoiado pelo FONSTI est\u00e1 a enfrentar o desafio de recuperar terras agr\u00edcolas degradadas pela minera\u00e7\u00e3o.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"450\" src=\"https:\/\/sgciafrica.org\/wp-content\/uploads\/2026\/11\/Secretary-General-of-FONSTI_BODY.jpg\" alt=\"\" class=\"wp-image-26786\" srcset=\"https:\/\/sgciafrica.org\/wp-content\/uploads\/2026\/11\/Secretary-General-of-FONSTI_BODY.jpg 450w, https:\/\/sgciafrica.org\/wp-content\/uploads\/2026\/11\/Secretary-General-of-FONSTI_BODY-300x300.jpg 300w, https:\/\/sgciafrica.org\/wp-content\/uploads\/2026\/11\/Secretary-General-of-FONSTI_BODY-150x150.jpg 150w, https:\/\/sgciafrica.org\/wp-content\/uploads\/2026\/11\/Secretary-General-of-FONSTI_BODY-90x90.jpg 90w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><figcaption class=\"wp-element-caption\"><em>Secret\u00e1rio-Geral do FONSTI, Dr. Yaya Sangar\u00e9<\/em><\/figcaption><\/figure>\n<\/div>\n<p class=\"wp-block-paragraph\">Liderado por Kpangui Kouassi Bruno e uma equipa da <a href=\"https:\/\/ujlog.edu.ci\/\">Universit\u00e9 Jean Lorougnon Gu\u00e9d\u00e9, UJLOG<\/a>, o projeto Reabilita\u00e7\u00e3o de Antigos Locais de Minera\u00e7\u00e3o de Ouro para Fins Agr\u00edcolas, <a href=\"https:\/\/www.ujlog-fcil.ci\/2025\/11\/10\/rehabilitation-danciens-sites-dorpaillage-a-des-fins-agricoles-dans-le-district-du-sassandra-marahoue\/?utm_source=chatgpt.com\">RASORA<\/a>, est\u00e1 a trabalhar no Distrito de Sassandra-Marahou\u00e9, em particular em Kouassi-P\u00e9rita, para reabilitar solos contaminados e torn\u00e1-los adequados \u00e0 produ\u00e7\u00e3o agr\u00edcola.<\/p>\n\n<p class=\"wp-block-paragraph\">A abordagem combina biocarv\u00e3o e composto com plantas e microrganismos cuidadosamente selecionados, capazes de ajudar a descontaminar solos degradados.<\/p>\n\n<p class=\"wp-block-paragraph\">A equipa de investiga\u00e7\u00e3o est\u00e1 a utilizar isolados microbianos, incluindo esp\u00e9cies de <em>Bacillus<\/em> e <em>Pseudomonas<\/em>, como parte da sua estrat\u00e9gia de reabilita\u00e7\u00e3o do solo.<\/p>\n\n<p class=\"wp-block-paragraph\">O projeto visa restaurar a qualidade do solo e apoiar a produ\u00e7\u00e3o de culturas alimentares e hort\u00edcolas, incluindo bananas, mandioca, tomates e malaguetas, em terras anteriormente degradadas. Isto poder\u00e1 ajudar as comunidades afetadas a recuperar meios de subsist\u00eancia agr\u00edcolas, reduzindo simultaneamente potenciais riscos para a sa\u00fade associados a solos contaminados.<\/p>\n\n<p class=\"wp-block-paragraph\"><strong>Da fiscaliza\u00e7\u00e3o \u00e0 reabilita\u00e7\u00e3o<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Ossey Yapo afirmou que, embora o governo marfinense tenha intensificado os esfor\u00e7os para combater a minera\u00e7\u00e3o ilegal de ouro, incluindo a desativa\u00e7\u00e3o de mais de 8.500 locais entre 2021 e o primeiro semestre de 2026, as deten\u00e7\u00f5es e o agravamento das penas criminais n\u00e3o t\u00eam sido suficientes para responder aos danos ambientais.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"150\" src=\"https:\/\/sgciafrica.org\/wp-content\/uploads\/2026\/11\/ROSARA-Project_2_BODY.jpg\" alt=\"\" class=\"wp-image-26787\"\/><figcaption class=\"wp-element-caption\"><em>Projeto ROSARA<\/em><\/figcaption><\/figure>\n<\/div>\n<p class=\"wp-block-paragraph\">As discuss\u00f5es no Encontro \u201cInnovation Breakfast\u201d destacaram a necessidade de complementar a aplica\u00e7\u00e3o da lei com monitoriza\u00e7\u00e3o cient\u00edfica, restaura\u00e7\u00e3o de ecossistemas e oportunidades alternativas de subsist\u00eancia para as comunidades afetadas.<\/p>\n\n<p class=\"wp-block-paragraph\">O Secret\u00e1rio-Geral do <a href=\"https:\/\/fonsti.org\/\">FONSTI<\/a>, Yaya Sangar\u00e9, afirmou: \u201cO papel da institui\u00e7\u00e3o era traduzir o conhecimento cient\u00edfico em solu\u00e7\u00f5es pr\u00e1ticas que respondam aos desafios do desenvolvimento nacional\u201d.<\/p>\n\n<p class=\"wp-block-paragraph\">Um painel moderado por Alain Toh reuniu investigadores, especialistas ambientais, representantes do setor mineiro e autoridades locais para discutir como as inova\u00e7\u00f5es cient\u00edficas poderiam ser implementadas de forma mais ampla.<\/p>\n\n<p class=\"wp-block-paragraph\">O envolvimento de autoridades tradicionais, incluindo o chefe de Hir\u00e9, Mo\u00efs\u00e9 Any Gbetto, ilustrou a import\u00e2ncia da participa\u00e7\u00e3o comunit\u00e1ria no combate \u00e0 minera\u00e7\u00e3o ilegal e na recupera\u00e7\u00e3o das \u00e1reas afetadas.<\/p>\n\n<p class=\"wp-block-paragraph\">Os participantes sublinharam a necessidade de uma abordagem nacional coordenada, incluindo programas de reabilita\u00e7\u00e3o em grande escala, monitoriza\u00e7\u00e3o cont\u00ednua das principais bacias hidrogr\u00e1ficas, como as dos rios Bandama, Como\u00e9, Sassandra e Cavally, e apoio \u00e0s comunidades para desenvolverem alternativas econ\u00f3micas sustent\u00e1veis \u00e0 minera\u00e7\u00e3o ilegal.<\/p>\n\n<p class=\"wp-block-paragraph\">As iniciativas destacam tamb\u00e9m o papel do FONSTI no refor\u00e7o do ecossistema de investiga\u00e7\u00e3o e inova\u00e7\u00e3o da C\u00f4te d&#8217;Ivoire. Enquanto membro da <a href=\"https:\/\/sgciafrica.org\/pt\/council\/fonds-pour-la-science-la-technologie-et-linnovation-costa-do-marfim\/\">Science Granting Councils Initiative (SGCI),<\/a> o FONSTI colabora com outros conselhos de financiamento da ci\u00eancia africanos para refor\u00e7ar o financiamento da investiga\u00e7\u00e3o, promover a troca de conhecimento e desenvolver capacidade institucional. Atrav\u00e9s destas parcerias, incluindo colabora\u00e7\u00f5es com conselhos em Mo\u00e7ambique, Uganda e \u00c1frica do Sul, a iniciativa apoia institui\u00e7\u00f5es de financiamento da ci\u00eancia mais robustas e a utiliza\u00e7\u00e3o de evid\u00eancia de investiga\u00e7\u00e3o para informar pol\u00edticas de desenvolvimento econ\u00f3mico e social.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"alignleft size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"150\" src=\"https:\/\/sgciafrica.org\/wp-content\/uploads\/2026\/11\/ROSARA-Project_BODY.jpg\" alt=\"\" class=\"wp-image-26788\"\/><figcaption class=\"wp-element-caption\"><em>Projeto ROSARA<\/em><\/figcaption><\/figure>\n<\/div>\n<p class=\"wp-block-paragraph\">Os esfor\u00e7os do FONSTI para ligar investigadores, decisores pol\u00edticos e outras partes interessadas em torno de solu\u00e7\u00f5es para a minera\u00e7\u00e3o ilegal de ouro demonstram como os conselhos nacionais de financiamento da ci\u00eancia podem ajudar a traduzir a investiga\u00e7\u00e3o gerada localmente em respostas a desafios prementes de desenvolvimento.<\/p>\n\n<p class=\"wp-block-paragraph\">Para o FONSTI, o desafio passa agora por levar a investiga\u00e7\u00e3o promissora para al\u00e9m do desenvolvimento em laborat\u00f3rio e para a aplica\u00e7\u00e3o pr\u00e1tica.<\/p>\n\n<p class=\"wp-block-paragraph\">A expans\u00e3o destas tecnologias exigir\u00e1 colabora\u00e7\u00e3o entre investigadores, institui\u00e7\u00f5es governamentais, operadores mineiros, autoridades locais e parceiros de desenvolvimento, a par de pol\u00edticas que apoiem a monitoriza\u00e7\u00e3o ambiental e a recupera\u00e7\u00e3o de terras.<\/p>\n\n<p class=\"wp-block-paragraph\">Os projetos demonstram como o conhecimento cient\u00edfico gerado localmente pode contribuir para enfrentar desafios ambientais complexos. No entanto, o seu impacto mais amplo depender\u00e1 de investimento sustentado, apoio institucional e da capacidade de traduzir os resultados da investiga\u00e7\u00e3o em solu\u00e7\u00f5es a que as comunidades possam aceder e utilizar.<\/p>\n\n<p class=\"wp-block-paragraph\"><em>Consulte as<\/em> <a href=\"https:\/\/sgciafrica.org\/pt\/noticias\/\"><em>hist\u00f3rias<\/em><\/a> <em>e diga-nos o que pensa. Gostar\u00edamos muito de o\/a ouvir!<\/em><\/p>\n\n<p class=\"wp-block-paragraph\"><em>Vamos continuar a conversa<\/em> <em>nas nossas redes sociais<\/em><\/p>\n\n<p class=\"wp-block-paragraph\"><em>Siga-nos no<\/em> <a href=\"https:\/\/www.linkedin.com\/company\/science-granting-councils-initiative\/\"><em>LinkedIn<\/em><\/a> <em>e no<\/em> <a href=\"https:\/\/x.com\/SGCIAfrica\"><em>X<\/em><\/a><em><\/em><\/p>\n\n<p class=\"wp-block-paragraph\"><em>Publicado a 9 de novembro de 2026<\/em><\/p>\n\n<p class=\"wp-block-paragraph\"><em>Por Jackie Opara-Fatoye<\/em><em><\/em><\/p>\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tecnologias desenvolvidas localmente para detetar metais pesados na \u00e1gua e recuperar terras agr\u00edcolas contaminadas poder\u00e3o ajudar a C\u00f4te d\u2019Ivoire a enfrentar as consequ\u00eancias ambientais e de sa\u00fade p\u00fablica da minera\u00e7\u00e3o ilegal de ouro. A minera\u00e7\u00e3o ilegal de ouro afetou 29 das 31 regi\u00f5es da C\u00f4te d\u2019Ivoire, amea\u00e7ando os recursos h\u00eddricos, as terras agr\u00edcolas e a&hellip;<\/p>\n","protected":false},"author":13,"featured_media":26793,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","wds_primary_category":0,"wds_primary_country":0,"wds_primary_objective":0,"wds_primary_sg_theme":0,"footnotes":""},"categories":[159],"tags":[],"country":[],"objective":[],"sg_theme":[],"class_list":["post-26792","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.7 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Investigadores marfinenses desenvolvem solu\u00e7\u00f5es para os danos da minera\u00e7\u00e3o ilegal de ouro - SGCI Africa<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sgciafrica.org\/pt\/investigadores-marfinenses-desenvolvem-solucoes-para-os-danos-da-mineracao-ilegal-de-ouro\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Investigadores marfinenses desenvolvem solu\u00e7\u00f5es para os danos da minera\u00e7\u00e3o ilegal de ouro\" \/>\n<meta property=\"og:description\" content=\"Tecnologias desenvolvidas localmente para detetar metais pesados na \u00e1gua e recuperar terras agr\u00edcolas contaminadas poder\u00e3o ajudar a C\u00f4te d\u2019Ivoire a enfrentar as consequ\u00eancias ambientais e de sa\u00fade p\u00fablica da minera\u00e7\u00e3o ilegal de ouro. 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