{"id":106501,"date":"2026-06-29T10:40:14","date_gmt":"2026-06-29T10:40:14","guid":{"rendered":"https:\/\/stopcarcinogensatwork.eu\/fact\/compostos-organicos-volateis-cov\/"},"modified":"2026-06-29T10:40:14","modified_gmt":"2026-06-29T10:40:14","slug":"compostos-organicos-volateis-cov","status":"publish","type":"fact","link":"https:\/\/stopcarcinogensatwork.eu\/pt-pt\/fact\/compostos-organicos-volateis-cov\/","title":{"rendered":"Compostos Org\u00e2nicos Vol\u00e1teis (COV)"},"content":{"rendered":"<blockquote><p>Pode-se partir do princ\u00edpio de que v\u00e1rios milh\u00f5es de trabalhadores na UE est\u00e3o expostos, no \u00e2mbito do seu trabalho, ao grupo de subst\u00e2ncias qu\u00edmicas frequentemente presentes em solventes, conhecidas como subst\u00e2ncias org\u00e2nicas vol\u00e1teis (COV). Este grupo heterog\u00e9neo inclui subst\u00e2ncias como o Benzeno e o Formalde\u00eddo, que est\u00e3o entre os agentes cancer\u00edgenos mais comuns relacionados com o trabalho na UE. <\/p><\/blockquote>\n<p>The exposure occurs normally by inhalation or, in the case of substances that can be absorbed through the skin, through the skin.<\/p>\n<p>Alguns COV s\u00e3o classificados como claramente agentes cancer\u00edgenos (por exemplo, o Benzeno \u2013 Cat. 1A, ou o Formalde\u00eddo \u2013 Cat. Cat. 1B) ou como t\u00f3xicos para a reprodu\u00e7\u00e3o (por exemplo, Tolueno \u2013 Repr. Cat. 2). Como os COV constituem um grupo heterog\u00e9neo de subst\u00e2ncias, \u00e9 poss\u00edvel que haja exposi\u00e7\u00f5es m\u00faltiplas sob a forma de uma mistura de subst\u00e2ncias. A exposi\u00e7\u00e3o a essa mistura de subst\u00e2ncias nocivas pode aumentar significativamente o risco de cancro associado.  <\/p>\n<h2>Onde ocorrem os riscos<\/h2>\n<p>Os COV incluem uma vasta gama de subst\u00e2ncias de uso comum, como as que se encontram em solventes, combust\u00edveis (f\u00f3sseis), produtos de limpeza, tintas e vernizes, Pesticidas ou adesivos.<\/p>\n<p>No local de trabalho, encontram-se principalmente em qualquer s\u00edtio onde se utilizem, processem ou libertem solventes org\u00e2nicos como subprodutos. A exposi\u00e7\u00e3o elevada ou de pico ocorre durante a pintura com aer\u00f3grafo, a limpeza ou a desengorduramento com solventes, a limpeza de tanques em espa\u00e7os confinados e trabalhos de manuten\u00e7\u00e3o ou durante a constru\u00e7\u00e3o de obras de renova\u00e7\u00e3o. Al\u00e9m disso, a exposi\u00e7\u00e3o de intensidade m\u00e9dia ocorre na ind\u00fastria qu\u00edmica e de pl\u00e1sticos, na produ\u00e7\u00e3o de adesivos, revestimentos e tintas e durante o processamento de borracha e pl\u00e1stico.  <\/p>\n<p>Other forms of exposure occur normally during painting and coating, during vehicle repair and maintenance, in the graphic and publishing industry, in the cleaning sector and in the healthcare sector.<\/p>\n<h2>Mais informa\u00e7\u00f5es sobre a subst\u00e2ncia<\/h2>\n<p>De um modo geral, os COV \u2014 dependendo da defini\u00e7\u00e3o \u2014 s\u00e3o compostos org\u00e2nicos com uma press\u00e3o de vapor igual ou superior a 0,01 kPa a 293,15 K, ou compostos org\u00e2nicos com um ponto de ebuli\u00e7\u00e3o at\u00e9 250 \u00b0C a uma press\u00e3o padr\u00e3o de 101,3 kPa. Consequentemente, quantidades significativas destas subst\u00e2ncias passam para a fase gasosa mesmo \u00e0 temperatura ambiente, representando um risco de exposi\u00e7\u00e3o principalmente por inala\u00e7\u00e3o. Ao mesmo tempo, muitas destas subst\u00e2ncias s\u00e3o lipof\u00edlicas e podem, por isso, ser potencialmente absorvidas pela pele, como \u00e9 o caso dos solventes org\u00e2nicos Benzeno, Tolueno e Xileno.  <\/p>\n<p>N\u00e3o existe um valor-limite de exposi\u00e7\u00e3o profissional vinculativo a n\u00edvel da UE, mas existem valores vinculativos para o Benzeno (0,66 mg\/m\u00b3), o Formalde\u00eddo (0,37 mg\/m\u00b3) e o Cloreto de Vinilo (2,6 mg\/m\u00b3).<\/p>\n<h2>Perigos que podem ocorrer<\/h2>\n<p>Dependendo da composi\u00e7\u00e3o, a exposi\u00e7\u00e3o aguda aos COV pode causar v\u00e1rios sintomas, como tonturas, dores de cabe\u00e7a ou irrita\u00e7\u00e3o nos olhos, no nariz e nas vias respirat\u00f3rias.<\/p>\n<p>A longo prazo, a exposi\u00e7\u00e3o pode causar cancros como a leucemia (Benzeno), cancros da regi\u00e3o nasofar\u00edngea (Formalde\u00eddo) ou cancro do f\u00edgado (Cloreto de Vinilo).<\/p>\n<p>Alguns COV tamb\u00e9m s\u00e3o classificados como t\u00f3xicos para a reprodu\u00e7\u00e3o (como o Tolueno \u2013 Cat. 2).<\/p>\n<h2>O que podes fazer<\/h2>\n<p>O ideal \u00e9 controlar os riscos de exposi\u00e7\u00e3o aos COV atrav\u00e9s da substitui\u00e7\u00e3o ou elimina\u00e7\u00e3o. Escolher subst\u00e2ncias com press\u00f5es de vapor mais baixas ajuda a reduzir a liberta\u00e7\u00e3o da subst\u00e2ncia para o ar ambiente. Verifica se \u00e9 poss\u00edvel usar sistemas \u00e0 base de \u00e1gua para reduzir o uso de solventes. Substitui os desinfetantes por outros que n\u00e3o contenham alde\u00eddos.   <\/p>\n<p>Utiliza as subst\u00e2ncias em sistemas fechados para evitar a exposi\u00e7\u00e3o e capta as emiss\u00f5es na fonte atrav\u00e9s de ventila\u00e7\u00e3o local de exaust\u00e3o. Realiza medi\u00e7\u00f5es de exposi\u00e7\u00e3o no local de trabalho, nomeadamente para avaliar a exposi\u00e7\u00e3o a misturas de subst\u00e2ncias, e tem em conta o risco acrescido de exposi\u00e7\u00f5es m\u00faltiplas. Minimiza o tempo de exposi\u00e7\u00e3o e evita o contacto com a pele. Troca regularmente a roupa de trabalho para reduzir o risco de contamina\u00e7\u00e3o.   <\/p>\n<p>Por fim, o equipamento de prote\u00e7\u00e3o individual tamb\u00e9m pode ser utilizado depois de esgotadas todas as outras medidas preventivas, para minimizar ainda mais qualquer exposi\u00e7\u00e3o residual: por exemplo, usando luvas de prote\u00e7\u00e3o adequadas, \u00f3culos de prote\u00e7\u00e3o e m\u00e1scaras respirat\u00f3rias. Neste contexto, o tamanho, a natureza e a efic\u00e1cia do equipamento de prote\u00e7\u00e3o t\u00eam de ser adaptados aos riscos no local de trabalho e \u00e0s circunst\u00e2ncias individuais. <\/p>\n<p><em>Refer\u00eancias: Ag\u00eancia Federal do Ambiente, Ag\u00eancia Europeia do Ambiente, Comiss\u00e3o Europeia, EUR-Lex, EU-OSHA (WES), Sociedade Alem\u00e3 de Toxicologia, GESTIS, OMS<\/em><\/p>\n","protected":false},"template":"","carcinogens":[8622],"class_list":["post-106501","fact","type-fact","status-publish","hentry","carcinogens-compostos-organicos-volateis-cov"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.9 (Yoast SEO v27.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Compostos Org\u00e2nicos Vol\u00e1teis (COV) - STOP carcinogens at work<\/title>\n<meta name=\"description\" content=\"Be aware of what you work with! 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