{"id":82778,"date":"2023-08-29T10:09:26","date_gmt":"2023-08-29T10:09:26","guid":{"rendered":"https:\/\/stopcarcinogensatwork.eu\/fact\/izopren\/"},"modified":"2025-09-04T12:59:57","modified_gmt":"2025-09-04T12:59:57","slug":"izopren","status":"publish","type":"fact","link":"https:\/\/stopcarcinogensatwork.eu\/hr\/fact\/izopren\/","title":{"rendered":"Izopren"},"content":{"rendered":"<blockquote><p>Procjenjuje se da 10.539 radnika u EU mo\u017ee biti izlo\u017eeno izoprenu. Na radnim mjestima gdje se izopren proizvodi ili koristi, izlo\u017eenost se mo\u017ee dogoditi prvenstveno udisanjem para i kontaktom s ko\u017eom, ali se unos kroz ko\u017eu smatra zanemarivim. Prema CLP-u, izopren je klasificiran kao karcinogen kategorije 1B (H350: Mo\u017ee uzrokovati rak). Kroni\u010dna i visoka izlo\u017eenost mo\u017ee dovesti do raka jetre kao glavnog u\u010dinka, ali i do anemije, degeneracije olfaktornog epitela (tkiva unutar nosne \u0161upljine koje je uklju\u010deno u percepciju mirisa) i degeneracije bijele tvari le\u0111ne mo\u017edine.   <\/p><\/blockquote>\n<h2>Gdje se javljaju rizici<\/h2>\n<p>Izopren se koristi kao monomer u proizvodnji i preradi polimera. Nadalje, koristi se kao me\u0111uprodukt u sintezi kemijskih tvari. Izlo\u017eenost se mo\u017ee dogoditi i tijekom proizvodnje izoprena ili kada se koristi kao odr\u017eivo zrakoplovno gorivo. Radnici u sektorima proizvodnje industrijskih kemikalija i proizvodnje plastike ili gume su u opasnosti od izlo\u017eenosti.   <\/p>\n<h2>Vi\u0161e o supstanci<\/h2>\n<p>Izopren je bezbojna zapaljiva teku\u0107ina blagog mirisa. Ima nisko vreli\u0161te od samo 34 \u00b0C i stoga izuzetno visok tlak pare od 634 hPa ve\u0107 na 21,1 \u00b0C. To zna\u010di da brzo isparava na sobnoj temperaturi. Oslobo\u0111ene pare mogu se udisati ili stvoriti eksplozivnu atmosferu. Izopren je metabolit koji se prirodno javlja u mnogim biljkama, \u017eivotinjama i ljudima. Izopren emitiraju mnoge vrste drve\u0107a u velikim koli\u010dinama (ali se brzo razgra\u0111uje, \u0161to zna\u010di da su koncentracije u okoli\u0161u niske) i tako\u0111er se mo\u017ee otkriti u ljudskom dahu. Sam izopren nije genotoksi\u010dan, ali se lako metabolizira u genotoksi\u010dni mono- i diepoksid, prete\u017eno u jetri. Izoprenski polimeri glavna su komponenta prirodnog kau\u010duka. Naj\u010de\u0161\u0107i proizvodi od izoprena su gume.        <\/p>\n<h2>Opasnosti koje se mogu pojaviti<\/h2>\n<p>Najve\u0107i potencijal za profesionalnu izlo\u017eenost izoprenu je udisanje para. Jednokratna ili kratkotrajna izlo\u017eenost izoprenu mo\u017ee uzrokovati iritaciju nosa, grla i plu\u0107a te dovesti do glavobolje ili vrtoglavice. Iako je akutna toksi\u010dnost niska (tj. vrlo je malo vjerojatno da \u0107e osoba umrijeti od jednokratne kratkotrajne izlo\u017eenosti), dugotrajna ili ponovljena izlo\u017eenost izoprenu povezana je s rakom jetre, degeneracijom olfaktornog epitela i degeneracijom bijele tvari le\u0111ne mo\u017edine.  <\/p>\n<p><strong>  Za rak jetre, latentno razdoblje se procjenjuje na 18 godina.<\/strong><\/p>\n<h2>\u0160to mo\u017eete u\u010diniti<\/h2>\n<p>Naju\u010dinkovitiji na\u010din sprje\u010davanja izlo\u017eenosti je zamjena izoprena sigurnijim alternativama. Tamo gdje zamjena izoprena nije mogu\u0107a i upotreba izoprena se ne mo\u017ee izbje\u0107i, moraju se poduzeti mjere za smanjenje izlo\u017eenosti. U sektoru proizvodnje rafiniranih naftnih derivata, koji je odgovoran za proizvodnju, a ne upotrebu izoprena, zamjena nije primjenjiva. Me\u0111utim, kori\u0161tenje drugih monomera u industriji gume moglo bi biti opcija. Drugi naju\u010dinkovitiji na\u010din izbjegavanja izlo\u017eenosti izoprenu je razvoj i kori\u0161tenje zatvorenih sustava. Zatvoreni sustavi se \u010desto nalaze u svim proizvodnim procesima, kako u rafiniranju tako i u polimerizaciji izoprena.     <\/p>\n<p>Tamo gdje zamjena ili zatvoreni proces nisu mogu\u0107i, treba provesti tehni\u010dke mjere poput u\u010dinkovite lokalne ispu\u0161ne ventilacije ili dobre ventilacije radnog mjesta, kao i provjeru njihove u\u010dinkovitosti kako bi se osiguralo da se izlo\u017eenost svede na najmanju mogu\u0107u mjeru koliko je to tehni\u010dki mogu\u0107e. Izopren se \u010desto prera\u0111uje u tla\u010dnim upravlja\u010dkim kabinama, koje su vrlo u\u010dinkovite u smanjenju isparavanja. <\/p>\n<p>Redovito provodite procjene izlo\u017eenosti kako biste provjerili jesu li va\u0161e za\u0161titne mjere u\u010dinkovite ili je potrebno poduzeti daljnje mjere. Radnici moraju biti svjesni u\u010dinaka izlo\u017eenosti i trebaju se redovito obu\u010davati o kontrolnim mjerama potrebnim za siguran rad s izoprenom kako bi se sprije\u010dila izlo\u017eenost. Treba ih poticati da prijavljuju simptome poput iritacije nosa, grla i plu\u0107a (npr. ka\u0161alj i piskanje), glavobolje ili vrtoglavice, budu\u0107i da to mogu biti znakovi upozorenja da mjere koje su na snazi nisu dovoljne. Preporu\u010duje se uklju\u010divanje lije\u010dnika medicine rada.   <\/p>\n<p>Osim toga, obu\u010dite radnike o u\u010dinkovitim higijenskim mjerama.<\/p>\n<p>Osigurajte da radnici imaju odgovaraju\u0107u osobnu za\u0161titnu opremu (OZO), kao \u0161to su za\u0161titna odje\u0107a i rukavice, ako je potrebno. Ako se koristi OZO za vi\u0161ekratnu upotrebu, pobrinite se da se o\u010disti ili zamijeni, ako je potrebno, i pohrani na \u010distom mjestu. Za izopren, \u010desto su potrebni RPE (respiratorna za\u0161titna oprema), kao i za\u0161titne rukavice i nao\u010dale. Ako je respiratorna oprema neophodna, osigurajte da disanje nije dodatno fizi\u010dki zahtjevno. Osobnu za\u0161titnu opremu treba koristiti samo kao krajnje rje\u0161enje i razmatrati samo privremeno, nakon \u0161to su iscrpljena sva mogu\u0107a tehni\u010dka rje\u0161enja.    <\/p>\n<p><em>Reference: ECHA, RAC, DG EMPL<\/em><\/p>\n","protected":false},"template":"","carcinogens":[4279],"class_list":["post-82778","fact","type-fact","status-publish","hentry","carcinogens-izopren-hr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.0 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Izopren - STOP carcinogens at work<\/title>\n<meta name=\"description\" content=\"Procjenjuje se da 10 539 radnika u EU mo\u017ee biti izlo\u017eeno izoprenu. 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