Newsgroup: it.scienza.chimica
Titolo: Cobalto e trielina classificati cancerogeni

http://www.niehs.nih.gov/news/newsroom/releases/2016/november3/index.cfm
 
 
   For Immediate Release
 
   Thursday, November 3, 2016
 
   Seven Substances Added to 14th Report on Carcinogens
 
   Five viruses, a chemical, and a metallic element
   listed in new HHS report
 
   Today's release of the U.S. Department of Health and Human Services
   14th Report on Carcinogens includes seven newly reviewed substances,
   bringing the cumulative total to 248 listings.
 
   The chemical trichloroethylene (TCE), and the metallic element cobalt
   and cobalt compounds that release cobalt ions in vivo, are being
   added to the list, as well as five viruses that have been linked to
   cancer in humans. The five viruses include human immunodeficiency
   virus type 1, human T-cell lymphotropic virus type 1, Epstein-Barr
   virus, Kaposi sarcoma-associated herpesvirus, and Merkel cell
   polyomavirus.
 
    [...]
 
   Trichloroethylene (TCE)
 
   Trichloroethylene (TCE) is an industrial solvent used primarily to
   make hydrofluorocarbon chemicals. It is being listed in the Report
   on Carcinogens as a known human carcinogen. Since 2000, TCE had
   been listed as a reasonably anticipated human carcinogen. However,
   numerous human studies showing a causal association between TCE
   exposure and an increased risk for kidney cancer have led NTP to
   reevaluate and reclassify TCE as known to be a human carcinogen.
   There are many ways people can be exposed to TCE. It can be released
   into the air, water, and soil at places where it is produced or used.
   It breaks down slowly and can move readily through soil to make
   its way into underground drinking water sources. Because of its
   widespread use as a metal degreasing agent to maintain military
   equipment, it has been found in the groundwater at many military
   and Superfund sites.
 
   Cobalt and cobalt compounds that release cobalt ions in vivo
 
   Cobalt and cobalt compounds that release cobalt ions in vivo are
   being listed as reasonably anticipated to be a human carcinogen.
   The listing for cobalt includes different types of cobalt compounds
   that release ions into the body. It does not include vitamin B-12,
   because cobalt in this essential nutrient is bound to protein and
   does not release cobalt ions. Cobalt is a naturally occurring element
   used to make metal alloys and other metal compounds, such as military
   and industrial equipment, and rechargeable batteries. The highest
   exposure occurs in the workplace and from failed surgical implants.
   The listing for this metal and its compounds is based largely on
   studies in experimental animals.
 
http://ntp.niehs.nih.gov/ntp/roc/content/profiles/trichloroethylene.pdf
 
   Substance Profile: Trichloroethylene - CAS No. 79-01-6
 
http://www.niehs.nih.gov/health/materials/tce_508.pdf
 
   Fact Sheet: Trichloroethylene
 
http://ntp.niehs.nih.gov/ntp/roc/content/profiles/cobalt_ions.pdf
 
   Substance Profile: Cobalt and Cobalt Compounds That Release
   Cobalt Ions In Vivo - CAS No. 7440-48-4 (Cobalt metal)
 
http://www.niehs.nih.gov/health/materials/cobalt_508.pdf
 
   Fact Sheet: Cobalt and Cobalt Compounds That Release Cobalt Ions
   In Vivo
 
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*GB* azz.....  non mastico inglese, cioe ?
 
 
PS ma la trieleina cancerogena quindi anche inalata ?
 

 PS ma la trielina cancerogena quindi anche inalata ?
 
Noooooo!
Di solito quando uno usa la trielina se la inietta endovena :-)
LOL.
 
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BlueRay