Corexit (original) (raw)
Corexit és un producte utilitzat com a dispersant en vessaments de petroli. Està produït per Nalco Holding Company, que està associada amb BP i Exxon. Fa que el petroli que normalment es troba a la superfície de l'aigua s'emulsioni amb el dispersant formant petits glòbuls que poden romandre supsesos en l'aigua.
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| dbo:abstract | Corexit és un producte utilitzat com a dispersant en vessaments de petroli. Està produït per Nalco Holding Company, que està associada amb BP i Exxon. Fa que el petroli que normalment es troba a la superfície de l'aigua s'emulsioni amb el dispersant formant petits glòbuls que poden romandre supsesos en l'aigua. (ca) Corexit ist der Markenname einer von der Nalco Company hergestellten Produktreihe von Dispergatoren und Strandreinigungsmitteln zur Bekämpfung von Ölverschmutzungen. 2010 wurden mit Corexit EC9500A und Corexit EC9527A Dispergatoren in bis dahin nicht gekanntem Umfang vom Ölkonzern BP eingesetzt, um die Ölpest im Golf von Mexiko 2010 aufgrund der Havarie der Offshore-Ölbohrplattform Deepwater Horizon zu bekämpfen. Dabei wurden nach eigenen Angaben der EPA etwa sieben Millionen Liter der Dispergatoren versprüht. Umstritten war der Einsatz insbesondere wegen der im Vergleich zu anderen Dispergatoren hohen Ökotoxizität der Mittel. (de) Corexit (often styled COREXIT) is a product line of oil dispersants used during oil spill response operations. It is produced by Nalco Holding Company, an indirect subsidiary of Ecolab. Corexit was originally developed by the Standard Oil Company of New Jersey. Corexit is typically applied by aerial spraying or spraying from ships directly onto an oil slick. On contact with the dispersant, oil that would otherwise float on the surface of the water is emulsified into tiny droplets and sinks or (in the unusual case of sub-surface application) remains suspended in the water. In theory this allows the oil to be more rapidly degraded by bacteria (bioremediation) and prevents it from accumulating on beaches and in marshes. Corexit was used in unprecedented quantities during the 2010 Deepwater Horizon oil spill in the Gulf of Mexico and became the largest use of such chemicals in the United States. In addition to spraying the dispersant onto the surface slick, it was used in an untested, off-label manner when BP injected it at the broken well-head, roughly 1,500 m (5,000 ft) below the surface. Researchers continue to examine the effects and effectiveness of Corexit. Studies have so far indicated that the dispersant is toxic to marine life. Corexit has been shown to exert a synergistic effect when mixed with oil, increasing its toxicity. (en) Corexit es un producto utilizado como de derrames de petróleo. Es producido por Nalco Holding Company la que está asociada con BP y Exxon. Corexit fue el más usado dispersante en la fuga de petróleo del Deepwater Horizon en el golfo de México, Corexit 9527 fue remplazado por Corexit 9500 ya que el primero era más tóxico. Petróleo que normalmente sube a la superficie del agua, es roto por el dispersante en pequeños glóbulos que pueden permanecer así suspendidos en el agua. (es) Corexit, souvent stylisé COREXIT, est le nom d'une gamme de produits dispersants d'hydrocarbures utilisés pour dissoudre les marées noires. Elle est produite par la , qui a fusionné avec Ecolab en 2011, et est associée à BP et Exxon. Le pétrole, qui devrait normalement remonter à la surface de l'eau, est émulsionné en de minuscules gouttelettes par le dispersant et reste en suspension dans l'eau et sur le plancher océanique. Corexit a été utilisé en grande quantité à la suite de l'explosion de Deepwater Horizon en 2010 dans le golfe du Mexique. En 2012, une étude a révélé que le Corexit augmente la toxicité du pétrole de 52 fois. (fr) Con il nome commerciale Corexit viene identificata una linea di solventi, utilizzata principalmente come disperdente delle chiazze di petrolio in caso di incidenti o grosse perdite di greggio in mare. È prodotto dalla compagnia Nalco Holding che è associata con BP e Exxon. Corexit è il disperdente più utilizzato nel disastro ambientale del Golfo del Messico, in particolare il Corexit 9.527, sostituito in seguito dal Corexit 9.500 a causa della sua presunta tossicità. (it) Корексит (Corexit) — серия растворителей, обычно используемая как диспергент для растворения (осаждения) нефтяных пятен. Производятся , которая сотрудничает с BP и Exxon. Растворители Corexit использовались при ликвидации последствий взрыва платформы Deepwater Horizon и разлива нефти в мексиканском заливе. Для ликвидации использовали COREXIT 9527, который позднее заменили на COREXIT 9500, так как первый вариант оказался чрезмерно токсичным. Нефть, обычно всплывающая на поверхность воды и образующая плёнку, растворяется диспергентом на небольшие капли, которые остаются взвешенными в воде. (ru) Corexit är ett lösningsmedel tillverkat av som bland annat har använts för att försöka skingra läckt olja vid oljeutsläppet i Mexikanska golfen 2010. (sv) |
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| dbo:wikiPageExternalLink | http://www.marinemanagement.org.uk/protecting/pollution/approval.htm%23approvedproducts http://www.nalco.com/news-and-events/nalco-oil-dispersant-information.htm http://www.aljazeera.com/programmes/insidestoryamericas/2013/04/20134247553691966.html http://www.democracynow.org/2010/7/20/epa_whistleblower_accuses_agency_of_covering https://web.archive.org/web/20110726174744/http:/www.industry-tac.org/technical_documents/documents/techdoc-addspack_rates.pdf https://web.archive.org/web/20131002155611/http:/video.au.msn.com/watch/video/crude-solution-part-1/x9vqssi https://web.archive.org/web/20131002160141/http:/video.au.msn.com/watch/video/crude-solution-part-2/xo3uut7 https://www.youtube.com/watch%3Fv=ZodPx-bZPuI http://toxnet.nlm.nih.gov/cgi-bin/sis/search/r%3Fdbs+hsdb:@term+@OR+@na+@rel+corexit+9500+@OR+@na+corexit+9527 http://www.thedailybeast.com/newsweek/2013/04/22/what-bp-doesn-t-want-you-to-know-about-the-2010-gulf-spill.html |
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| rdfs:comment | Corexit és un producte utilitzat com a dispersant en vessaments de petroli. Està produït per Nalco Holding Company, que està associada amb BP i Exxon. Fa que el petroli que normalment es troba a la superfície de l'aigua s'emulsioni amb el dispersant formant petits glòbuls que poden romandre supsesos en l'aigua. (ca) Corexit ist der Markenname einer von der Nalco Company hergestellten Produktreihe von Dispergatoren und Strandreinigungsmitteln zur Bekämpfung von Ölverschmutzungen. 2010 wurden mit Corexit EC9500A und Corexit EC9527A Dispergatoren in bis dahin nicht gekanntem Umfang vom Ölkonzern BP eingesetzt, um die Ölpest im Golf von Mexiko 2010 aufgrund der Havarie der Offshore-Ölbohrplattform Deepwater Horizon zu bekämpfen. Dabei wurden nach eigenen Angaben der EPA etwa sieben Millionen Liter der Dispergatoren versprüht. Umstritten war der Einsatz insbesondere wegen der im Vergleich zu anderen Dispergatoren hohen Ökotoxizität der Mittel. (de) Corexit es un producto utilizado como de derrames de petróleo. Es producido por Nalco Holding Company la que está asociada con BP y Exxon. Corexit fue el más usado dispersante en la fuga de petróleo del Deepwater Horizon en el golfo de México, Corexit 9527 fue remplazado por Corexit 9500 ya que el primero era más tóxico. Petróleo que normalmente sube a la superficie del agua, es roto por el dispersante en pequeños glóbulos que pueden permanecer así suspendidos en el agua. (es) Con il nome commerciale Corexit viene identificata una linea di solventi, utilizzata principalmente come disperdente delle chiazze di petrolio in caso di incidenti o grosse perdite di greggio in mare. È prodotto dalla compagnia Nalco Holding che è associata con BP e Exxon. Corexit è il disperdente più utilizzato nel disastro ambientale del Golfo del Messico, in particolare il Corexit 9.527, sostituito in seguito dal Corexit 9.500 a causa della sua presunta tossicità. (it) Корексит (Corexit) — серия растворителей, обычно используемая как диспергент для растворения (осаждения) нефтяных пятен. Производятся , которая сотрудничает с BP и Exxon. Растворители Corexit использовались при ликвидации последствий взрыва платформы Deepwater Horizon и разлива нефти в мексиканском заливе. Для ликвидации использовали COREXIT 9527, который позднее заменили на COREXIT 9500, так как первый вариант оказался чрезмерно токсичным. Нефть, обычно всплывающая на поверхность воды и образующая плёнку, растворяется диспергентом на небольшие капли, которые остаются взвешенными в воде. (ru) Corexit är ett lösningsmedel tillverkat av som bland annat har använts för att försöka skingra läckt olja vid oljeutsläppet i Mexikanska golfen 2010. (sv) Corexit (often styled COREXIT) is a product line of oil dispersants used during oil spill response operations. It is produced by Nalco Holding Company, an indirect subsidiary of Ecolab. Corexit was originally developed by the Standard Oil Company of New Jersey. Corexit is typically applied by aerial spraying or spraying from ships directly onto an oil slick. On contact with the dispersant, oil that would otherwise float on the surface of the water is emulsified into tiny droplets and sinks or (in the unusual case of sub-surface application) remains suspended in the water. In theory this allows the oil to be more rapidly degraded by bacteria (bioremediation) and prevents it from accumulating on beaches and in marshes. (en) Corexit, souvent stylisé COREXIT, est le nom d'une gamme de produits dispersants d'hydrocarbures utilisés pour dissoudre les marées noires. Elle est produite par la , qui a fusionné avec Ecolab en 2011, et est associée à BP et Exxon. Le pétrole, qui devrait normalement remonter à la surface de l'eau, est émulsionné en de minuscules gouttelettes par le dispersant et reste en suspension dans l'eau et sur le plancher océanique. (fr) |
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