{"id":42602,"date":"2023-08-29T10:09:22","date_gmt":"2023-08-29T10:09:22","guid":{"rendered":"https:\/\/stopcarcinogensatwork.eu\/fact\/abrasao-processo\/"},"modified":"2025-05-15T19:41:23","modified_gmt":"2025-05-15T19:41:23","slug":"abrasao-processo","status":"publish","type":"fact","link":"https:\/\/stopcarcinogensatwork.eu\/pt-pt\/fact\/abrasao-processo\/","title":{"rendered":"Abras\u00e3o (processo)"},"content":{"rendered":"<h2>Gera\u00e7\u00e3o de carcinog\u00e9neos gerados pelo processo ap\u00f3s abras\u00e3o<span id=\"elementor-toc__heading-anchor-1\" class=\"elementor-menu-anchor \"><\/span><\/h2>\n<blockquote><p>A maior parte das subst\u00e2ncias perigosas s\u00e3o rotuladas e identificadas, mas tamb\u00e9m existem subst\u00e2ncias cancer\u00edgenas criadas como subproduto durante um processo de trabalho, as chamadas subst\u00e2ncias cancer\u00edgenas geradas pelo processo (PGC). Uma vez que os PGC n\u00e3o s\u00e3o normalmente rotulados nem referidos nas fichas de dados de seguran\u00e7a, estes PGC requerem uma aten\u00e7\u00e3o especial na pr\u00e1tica da SST, porque milh\u00f5es de trabalhadores na Europa est\u00e3o diariamente expostos a PGC. <\/p><\/blockquote>\n<p>Um dos processos que emite PGCs \u00e9 a abras\u00e3o. A abras\u00e3o \u00e9 a eros\u00e3o do material atrav\u00e9s do movimento lateral das superf\u00edcies. A abras\u00e3o provoca danos reais no material e, em muitos casos, leva \u00e0 liberta\u00e7\u00e3o de poeiras abrasivas. Em ambientes profissionais, as poeiras abrasivas formam-se, por exemplo, ao serrar madeira\/metal duro ou ao perfurar bet\u00e3o. O p\u00f3 abrasivo pode conter subst\u00e2ncias cancer\u00edgenas e \u00e9 facilmente inalado se n\u00e3o forem aplicadas estrat\u00e9gias de elimina\u00e7\u00e3o e controlo.    <\/p>\n<h2>Que atividades provocam a abras\u00e3o?<\/h2>\n<p>A abras\u00e3o pode ser causada por uma s\u00e9rie de processos diferentes, como o corte, a perfura\u00e7\u00e3o, o lixamento, a decapagem, o aplainamento, a moagem, a fresagem, a serragem e a tritura\u00e7\u00e3o de materiais. As subst\u00e2ncias cancer\u00edgenas podem estar presentes nas poeiras abrasivas que s\u00e3o libertadas durante estas atividades, sendo depois inaladas e causando efeitos na sa\u00fade. Al\u00e9m disso, a varredura das poeiras ap\u00f3s as atividades abrasivas pode levar \u00e0 exposi\u00e7\u00e3o.  <\/p>\n<h2>Onde ocorrem os riscos<\/h2>\n<p>Os trabalhadores expostos s\u00e3o: trabalhadores de jato abrasivo, operadores de fabrico de tijolos, bet\u00e3o ou telhas, pedreiros, trabalhadores de cer\u00e2mica e olaria, trabalhadores de bet\u00e3o, operadores de tritura\u00e7\u00e3o e moagem, operadores de lixadeiras, operadores de prensas na ind\u00fastria de produtos de madeira, operadores de tornos, trabalhadores da constru\u00e7\u00e3o civil e carpinteiros. As ind\u00fastrias onde a exposi\u00e7\u00e3o ocorre frequentemente s\u00e3o a constru\u00e7\u00e3o, a ind\u00fastria do mobili\u00e1rio e as ind\u00fastrias da silvicultura e da carpintaria. <\/p>\n<h2 id=\"heading-4\">Quantos trabalhadores est\u00e3o expostos?<\/h2>\n<p>As subst\u00e2ncias cancer\u00edgenas mais conhecidas libertadas pela abras\u00e3o s\u00e3o as poeiras de s\u00edlica respir\u00e1vel (quartzo) e as poeiras de madeira de folhosas, cujos n\u00fameros de exposi\u00e7\u00e3o est\u00e3o estimados em 5 milh\u00f5es de trabalhadores e 3 milh\u00f5es de trabalhadores na UE, respetivamente.<\/p>\n<h2>Efeitos na sa\u00fade<\/h2>\n<p>Quando os trabalhadores inalam poeiras de madeira de folhosas, estas depositam-se no nariz, na garganta e nas vias respirat\u00f3rias inferiores. A exposi\u00e7\u00e3o ao p\u00f3 de madeira de folhosas pode causar doen\u00e7as respirat\u00f3rias, irrita\u00e7\u00e3o ocular, doen\u00e7as de pele e, em caso de exposi\u00e7\u00e3o prolongada, cancro.<br \/>\nQuando os trabalhadores inalam s\u00edlica cristalina, o tecido pulmonar reage desenvolvendo n\u00f3dulos fibr\u00f3ticos e cicatrizes \u00e0 volta das part\u00edculas de s\u00edlica. N\u00e3o \u00e9 claro como \u00e9 que o p\u00f3 de s\u00edlica causa exatamente o cancro do pulm\u00e3o.  <\/p>\n<p>Para obter informa\u00e7\u00f5es pormenorizadas sobre os efeitos na sa\u00fade de metais e materiais cancer\u00edgenos espec\u00edficos, consulta as fichas informativas sobre cada subst\u00e2ncia no s\u00edtio Web: <a href=\"https:\/\/stopcarcinogensatwork.eu\/fact\/silica-dust\/\">P\u00f3 de s\u00edlica<\/a>, <a href=\"https:\/\/stopcarcinogensatwork.eu\/fact\/chromium-vi\/\">Cr\u00f3mio VI<\/a>, <a href=\"https:\/\/stopcarcinogensatwork.eu\/pt-pt\/fact\/po-de-madeira-de-folhosas\/\">Poeira de madeira de folhosas<\/a>.<\/p>\n<h2>O que deves fazer?<\/h2>\n<ul>\n<li>As poeiras abrasivas n\u00e3o s\u00e3o normalmente consideradas perigosas para a sa\u00fade humana, pelo que deve ser dada uma aten\u00e7\u00e3o especial \u00e0 sensibiliza\u00e7\u00e3o para estas subst\u00e2ncias e \u00e0s medidas de redu\u00e7\u00e3o da exposi\u00e7\u00e3o.<\/li>\n<li>Tal como acontece com qualquer outra subst\u00e2ncia qu\u00edmica, a exposi\u00e7\u00e3o pode ser drasticamente reduzida atrav\u00e9s da utiliza\u00e7\u00e3o de ferramentas de controlo de poeiras, tais como extractores de poeiras, lixadeiras exc\u00eantricas, martelos com extractores integrados ou sistemas de humidifica\u00e7\u00e3o para minimizar a emiss\u00e3o de poeiras abrasivas.<\/li>\n<li>A remo\u00e7\u00e3o das poeiras abrasivas o mais pr\u00f3ximo poss\u00edvel da fonte (por humidifica\u00e7\u00e3o ou ventila\u00e7\u00e3o por exaust\u00e3o local) \u00e9 essencial para reduzir a exposi\u00e7\u00e3o do trabalhador e tamb\u00e9m para minimizar a contamina\u00e7\u00e3o da sala de trabalho, a fim de evitar a ressuspens\u00e3o das poeiras abrasivas.<\/li>\n<li>Em <a href=\"http:\/\/www.dustfreeworking.tno.nl\" target=\"_blank\" rel=\"noopener\">http:\/\/www.dustfreeworking.tno.nl<\/a>, h\u00e1 uma variedade de extractores de p\u00f3.<\/li>\n<\/ul>\n","protected":false},"template":"","carcinogens":[1807],"class_list":["post-42602","fact","type-fact","status-publish","hentry","carcinogens-abrasao-processo"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.5) - 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