Composti organici volatili

di Redazione 63

Composti Organici Volatili

Con la denominazione di Composti Organici Volatili (VOC) viene indicato un insieme di sostanze (più di trecento) in forma liquida o di vapore suscettibili di evaporare facilmente a temperatura ambiente.

La suscettibilità all’evaporazione e quindi la volatilità di queste sostanze è una diretta conseguenza delle proprietà chimico-fisiche dei VOC, in particolare dal loro punto di ebollizione che va da un limite inferiore di 50-100 °C a un limite superiore di 240-260 °C.

Tra i più noti vi sono:

  • idrocarburi alifatici (dal n-esano, al n-esadecano e i metilesani);
  • terpeni, gli idrocarburi aromatici;
  • (benzene e derivati, toluene, o-xilene, stirene);
  • gli idrocarburi alogenati (cloroformio, diclorometano, clorobenzeni, ecc.);
  • gli alcoli (etanolo, propanolo, butanolo e derivati);
  • gli esteri, i chetoni, e le aldeidi (tra cui la formaldeide);

Negli ambienti chiusi, negli interni di case, uffici, negozi c’è un’altissima concentrazione di sostanze VOC. Questi infatti si trovano in:

  • prodotti per la pulizia a cera (cere liquide e in aerosol per pavimenti e mobili);
  • prodotti per la pulizia dei bagni, dei vetri, dei forni, paste abrasive, detergenti per stoviglie, deodoranti solidi e spray;
  • pitture e prodotti associati: pitture ad olio, uretaniche, acriliche, vernici a spirito per gommalacca, mordente e coloranti per legno, diluenti, detergenti per pennelli, sverniciatori etc…;
  • pesticidi, insetticidi e disinfettanti;
  • colle e adesivi;
  • prodotti per la cura della persona e cosmetici;
  • prodotti per l’auto;
  • mobili e tessuti;
  • materiali da costruzione;
  • stampanti e fotocopiatrici;
  • fumo di tabacco.

Non mancano le sorgenti outdoor di VOC, tra le quali le emissioni industriali, i pesticidi ed i gas di scarico delle automobili.

Effetti sulla salute

I VOC danno luogo ad effetti acuti e cronici. A seconda delle concentrazioni e dei  tempi di esposizione tra gli effetti acuti si annoverano: irritazioni agli occhi, al naso e alla gola, mal di testa, nausea, vertigini, asma. Quando i tempi di esposizione sono prolungati oppure le concentrazioni sono elevate i  VOC possono causare sulla persona esiti cronici come danni ai reni, al fegato, al sistema nervoso centrale, fino a provocare il cancro (nel caso particolare del benzene e della formaldeide). I soggetti più sensibili ad i VOC ed alle loro conseguenze sono: le persone con problemi respiratori, i bambini, gli anziani ed i soggetti allergici ai composti chimici.

Per approfondire:

Commenti (63)

  1. I simply want to tell you that I am just new to blogging and site-building and certainly savored you’re page. Very likely I’m likely to bookmark your blog post . You absolutely have fabulous articles. Cheers for revealing your blog.

  2. I just want to say I’m new to blogging and really loved your blog. Likely I’m want to bookmark your site . You certainly come with amazing articles and reviews. Kudos for sharing your blog.

  3. hello!,I really like your writing so a lot! percentage we keep up a correspondence extra about your article on AOL? I require an expert on this area to unravel my problem. Maybe that’s you! Taking a look ahead to look you.

    http://www.repairloader.net/

  4. Hello.This post was really interesting, particularly because I was searching for thoughts on this issue last Tuesday.

  5. whoah this blog is great i like reading your articles. Keep up the great paintings! You realize, many people are looking round for this information, you can aid them greatly.

  6. I’m writing to make you understand of the incredible encounter my daughter enjoyed checking yuor web blog. She came to find lots of pieces, most notably what it is like to have an incredible coaching character to let certain people completely know precisely specified grueling things. You truly surpassed our own desires. I appreciate you for churning out these productive, trustworthy, edifying and also easy guidance on the topic to Evelyn.

  7. Fantastic web site. Plenty of useful information here. I am sending it to some pals ans additionally sharing in delicious. And naturally, thanks for your effort!

  8. Attractive section of content. I just stumbled upon your web site and in accession capital to assert that I get actually enjoyed account your blog posts. Anyway I’ll be subscribing to your augment and even I achievement you access consistently rapidly.

  9. Hello, Neat post. There’s a problem with your web site in internet explorer, could check this… IE nonetheless is the market chief and a huge component of folks will omit your great writing due to this problem.

  10. I was just looking for this information for a while. After 6 hours of continuous Googleing, at last I got it in your web site. I wonder what’s the lack of Google strategy that do not rank this type of informative sites in top of the list. Usually the top websites are full of garbage.

  11. Thanks for each of your effort on this site. Kate really loves making time for investigations and it is easy to see why. We learn all relating to the powerful form you create good tricks on the website and even invigorate response from other individuals on the article so our own simple princess has always been learning a great deal. Have fun with the rest of the new year. You have been doing a wonderful job.

  12. Hello.This article was extremely fascinating, especially because I was searching for thoughts on this issue last Wednesday.

  13. I think other site proprietors should take this site as an model, very clean and great user genial style and design, let alone the content. You’re an expert in this topic!

  14. Please let me know if you’re looking for a author for your weblog. You have some really great posts and I believe I would be a good asset. If you ever want to take some of the load off, I’d absolutely love to write some content for your blog in exchange for a link back to mine. Please shoot me an e-mail if interested. Thank you!

    http://canyouspellit.com/members/abbychaplin916/activity/1685/

  15. Hello, you used to write excellent, but the last several posts have been kinda boring… I miss your super writings. Past several posts are just a little bit out of track! come on!

  16. IMSC SEO is a Singapore SEO Company. They provide comprehensive Singapore SEO services to help SG businesses to gain traffic from search engine. Their SEO agency has many years of experiences working with overseas companies on more competitive grounds. They are the best seo company in Singapore you can find. Their SEO expert and consultant understand exactly what search engine optimization your company need to gain search engine traffic.

    http://www.shortmyurls.com/imsc-home-comment-general

  17. Well I sincerely enjoyed studying it. This article provided by you is very effective for good planning.

  18. Generally I do not read article on blogs, but I would like to say that this write-up very forced me to check out and do so! Your writing style has been surprised me. Thank you, very great post.

  19. Divorcemind.com is a online divorce resource for divorce attorney, attornies and lawyers. You will find the best divorce information online. Divorce Mind will make your divorce or separation a quick, convenient and private.

    http://www.shortmyurls.com/divorcemind-divorces-comment

  20. You have mentioned very interesting points! ps decent web site.

  21. My spouse and I stumbled over here different website and thought I might as well check things out. I like what I see so now i’m following you. Look forward to going over your web page yet again.

    http://wallmclean6.tinyblogging.com/Jilbab-Yang-Elegan-Dan-Juga-Modis-Untuk-Wanita-Muda-2977676

  22. hey was just seeing if you minded a comment. i like your site and the theme you picked is super. I will be back.

    http://www.repairloader.net/

  23. Pretty nice post. I just stumbled upon your blog and wished to say that I’ve really enjoyed browsing your blog posts. After all I’ll be subscribing to your feed and I hope you write again very soon!

  24. SacramentoCremation.us is one of the leading crematorium services in the Sacramento area. Feel free to contact us regarding any questions on Sacramento Cremation Services or concerns you might have. Our staff will respond to you as soon as possible.

    http://www.shortmyurls.com/sacramentocremation-comment-general

  25. This is getting a bit more subjective, but I much prefer the Zune Marketplace. The interface is colorful, has more flair, and some cool features like ‘Mixview’ that let you quickly see related albums, songs, or other users related to what you’re listening to. Clicking on one of those will center on that item, and another set of “neighbors” will come into view, allowing you to navigate around exploring by similar artists, songs, or users. Speaking of users, the Zune “Social” is also great fun, letting you find others with shared tastes and becoming friends with them. You then can listen to a playlist created based on an amalgamation of what all your friends are listening to, which is also enjoyable. Those concerned with privacy will be relieved to know you can prevent the public from seeing your personal listening habits if you so choose.

  26. The new Zune browser is surprisingly good, but not as good as the iPod’s. It works well, but isn’t as fast as Safari, and has a clunkier interface. If you occasionally plan on using the web browser that’s not an issue, but if you’re planning to browse the web alot from your PMP then the iPod’s larger screen and better browser may be important.

  27. Hands down, Apple’s app store wins by a mile. It’s a huge selection of all sorts of apps vs a rather sad selection of a handful for Zune. Microsoft has plans, especially in the realm of games, but I’m not sure I’d want to bet on the future if this aspect is important to you. The iPod is a much better choice in that case.

  28. Hiya, I’m really glad I have found this information. Today bloggers publish only about gossips and web and this is actually annoying. A good blog with exciting content, this is what I need. Thanks for keeping this website, I will be visiting it. Do you do newsletters? Can not find it.

  29. I have not checked in here for some time as I thought it was getting boring, but the last several posts are good quality so I guess I will add you back to my everyday bloglist. You deserve it my friend 🙂

  30. I just have to notify you that I am new to having a blog and utterly valued your page. Likely I am prone to remember your blog post . You truly have impressive article information. Delight In it for sharing with us your main url write-up

    http://www.barcelonautazas.info

  31. It really is suitable time to have some goals for the longer term. I’ve read through this write-up and if I can possibly, I desire to suggest to you you couple important pointers.

    http://lesstandardsnumeriques.org

  32. I am no longer sure the place you’re getting your information, however great topic. I must spend a while finding out more or understanding more. Thank you for excellent info I used to be on the lookout for this info for my mission.

  33. Gday here, just became familiar with your blog page through Google, and found that it’s really beneficial. I’ll be grateful should you decide maintain such.

    http://www.divorceattorney4.info

  34. Genuinely motivating details that you have stated, say thanks a lot for setting up.

    http://www.fuelmeup.org

  35. Undeniably believe that which you stated. Your favorite reason appeared to be on the web the easiest thing to be aware of. I say to you, I definitely get annoyed while people think about worries that they just don’t know about. You managed to hit the nail upon the top and defined out the whole thing without having side effect , people could take a signal. Will likely be back to get more. Thanks

  36. This is perfect time to prepare some schedules for the near future. I have scan this blog and if I can, I wish to suggest you a few enlightening tips.

    http://www.filmaxmusic.com

  37. I just couldn’t depart your site before suggesting that I extremely enjoyed the standard info an individual provide on your visitors? Is going to be back ceaselessly in order to check up on new posts

  38. Noticeably stimulating specifics you have mentioned, thanks for putting up.

    http://weide678.com

  39. Might be practically unthinkable to encounter well-qualified parties on this subject, yet somehow you seem like you are familiar with whatever you’re preaching about! Thanks

    http://www.jailglom.us

  40. Surprisingly insightful information that you have said, many thanks for putting up.

    http://www.nonprofitwebdesignfirm.com

  41. Highly insightful data you have mentioned, thank you so much for submitting.

    http://www.hscixiu.com

  42. Greetings there, just became alert to your webpage through The Big G, and found that it’s really educational. I’ll value should you decide maintain such.

    http://www.divorcelawyer3.info

  43. I’m more than happy to find this website. I wanted to thank you for your time for this fantastic read!! I definitely loved every little bit of it and I have you book marked to look at new things in your web site.

    http://www.ccs2000.org

  44. Thanks so much for providing individuals with an exceptionally brilliant possiblity to read in detail from this site. It can be very brilliant plus full of a lot of fun for me personally and my office friends to search your web site at minimum three times a week to see the newest tips you will have. And definitely, we are always contented with the exceptional tricks you give. Some 3 points in this posting are in fact the most impressive we’ve ever had.

  45. You completed various good points there. I did a search on the subject and found the majority of folks will agree with your blog.

  46. Quite useful highlights that you have stated, many thanks for adding.

    http://www.helpor.net

  47. Good day there, just got aware of your weblog through Search engine, and have found that it is seriously informative. I’ll be grateful for should you decide continue on these.

    http://www.divorceattorney5.info

  48. It is usually appropriate day to make some preparations for the near future. I have read through this post and if I should, I want to suggest you a few fascinating pointers.

    http://www.xcelenergysolarrewards.com

  49. I have been checking out a few of your posts and i must say pretty good stuff. I will definitely bookmark your blog.

  50. Absolute interesting details you’ll have stated, thanks a lot for putting up.

    http://www.theintentionmap.com

  51. naturally like your website but you need to take a look at the spelling on several of your posts. Several of them are rife with spelling issues and I find it very bothersome to inform the reality however I will definitely come back again.

  52. Hi my loved one! I wish to say that this post is amazing, great written and include almost all important infos. I would like to see extra posts like this .

  53. I in addition to my buddies were actually checking the nice information and facts located on your web site and then all of a sudden I had a terrible suspicion I never thanked the site owner for them. Most of the ladies came totally passionate to learn all of them and have simply been enjoying those things. Appreciation for truly being really accommodating as well as for picking some high-quality topics millions of individuals are really desperate to be informed on. My honest regret for not saying thanks to earlier.

  54. I was more than happy to discover this web site. I want to to thank you for your time for this fantastic read!! I definitely appreciated every little bit of it and I have you saved to fav to check out new stuff on your blog.

    http://www.biciraq.org

  55. What i do not realize is actually how you are not really much more well-liked than you may be now. You’re so intelligent. You realize therefore significantly relating to this subject, produced me personally consider it from a lot of varied angles. Its like women and men aren’t fascinated unless it’s one thing to accomplish with Lady gaga! Your own stuffs excellent. Always maintain it up!

    http://www.great-quotes.com/user/seardvar64

  56. Thank you so much for providing individuals with an extraordinarily spectacular chance to read articles and blog posts from this blog. It’s always very excellent and also full of fun for me personally and my office fellow workers to search your website on the least three times in 7 days to read the latest secrets you will have. And definitely, we are always amazed with all the remarkable creative concepts you serve. Selected 4 ideas in this post are basically the most suitable we’ve ever had.

    https://www.pinterest.com/pkamlis/top-10-best-snowbrushes-and-ice-scrapers-in-2017-r/

  57. Thanks for your blog post. I would love to say that a health insurance brokerage service also utilizes the benefit of the coordinators of your group insurance cover. The health agent is given a directory of benefits desired by anyone or a group coordinator. Exactly what a broker really does is hunt for individuals or perhaps coordinators that best complement those desires. Then he presents his referrals and if the two of you agree, this broker formulates a binding agreement between the 2 parties.

    https://www.quora.com/profile/Sereyboth-Yorn/Posts/Infographic-15-Fruits-That-Actually-Can-Help-You-Lose-Weight

  58. I was curious if you ever considered changing the layout of your site? Its very well written; I love what you’ve got to say. But maybe you could a little more in the way of content so people could connect with it better.You’ve got an awful lot of text for only having one or 2 pictures. Maybe you could space it out better?

    https://www.slideshare.net/LoSotheara/top-10-best-party-tents-in-2017-79210586

  59. Compose more; that’s all I need to say. It appears as though you relied upon the movie to make your point. You know what you are talking about, why waste your intelligence on only posting videos into your site when you might be giving us something enlightening to read?

    https://nylonmargin50.crsblog.org/2018/08/03/what-you-will-get-when-you-check-dotbeasts/

Lascia un commento

Il tuo indirizzo email non verrà pubblicato.

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

Questo sito usa Akismet per ridurre lo spam. Scopri come i tuoi dati vengono elaborati.