Plöntur eyða ólofti
Franski efnafræðingurinn Lavoisier er jafnan talinn upphafsmaður að nútíma efnafræði. Hann er kunnastur fyrir að uppgötva þátt súrefnis í bruna árið 1774 og kollvarpaði þar með kenningunni um »flógiston« en það átti að vera fólgið í öllum brennanlegum efnum og valda bruna. Tveimur árum áður hafði hann birt forvitnilega grein, þar sem hann greindi frá niðurstöðum athugana sinna á lífi plantna. Hann hafði komizt að því, að plöntur bættu andrúmsloftið eftir að það hafði verið skemmt af völdum dýra og manna. Ekki kunni Lavoisier að skýra þetta nánar en engu að síður þóttu þetta allmerkar niðurstöður á sinni tíð. Skömmu seinna eða 1779 tókst Hollendingi, Jan Ingenhousz að nafni, að sýna fram á það, að plönturnar bættu andrúmsloftið því aðeins að þær væru hafðar í ljósi. Ingenhousz þessi var læknir að mennt og er reyndar þekktastur fyrir það að hafa verið líflæknir Maríu Theresíu og Georgs þriðja konungs á Englandi.
Ástæðan fyrir því, að þetta er rifjað hér upp, er sú, að nýlegar rannsóknir á vegum bandarísku geimvísindastofnunarinnar NASA hafa sýnt, að plöntur auka ekki aðeins súrefnið í andrúmsloftinu heldur eru mikilvirkar við að eyða skaðlegum lofttegundum. Þegar orkukreppan reið yfir á árunum 1973 og 74 var kapp lagt á að einangra allar byggingar til þess að spara orku og sett voru upp loftræsitæki. Með því að koma í veg fyrir að kalt útiloft kæmist inn í byggingar var unnt að lækka orkukostnað. Sá böggull fylgdi þó skammrifi, að samtímis versnaði inniloftið, þrátt fyrir hreinsibúnað, og alls kyns húsasóttir skutu upp kolli.
Með nýjum mælitækjum, sem voru hönnuð í sambandi við geimrannsóknir (Skylab III), var sýnt fram á, að fjöldi skaðlegra lofttegunda jafnt í íbúðarhúsnæði sem skrifstofubyggingum var ógnvekjandi, á þriðja hundraðið. Lofttegundirnar stafa af margvíslegum byggingarefnum í gólfi, þaki og veggjum. Í húsgagnaiðnaði eru einnig notuð alls kyns efni í límtrjám, plasti og fleiru. Að auki streyma lofttegundir frá þvottaefnum, flugnaeitri, hárúða, lími, tölvum og fjölda annarra hluta, sem eru daglega í notkun. Mörg þessara efna hafa áður verið óþekkt og því hafa menn ekki kunnað að varast þau og nútíma loftræsitæki koma ekki að fullum notum. Sýnt var fram á, að sum efnin eru sterkir krabbameinsvaldar en önnur valda þreytu, höfuðverk, ofnæmi og sjúkdómum í öndunarfærum.
Eftir ítarlegar rannsóknir á þessu sviði komust menn að því, að vissar tegundir af plöntum hreinsuðu andrúmsloftið miklu mun betur en ýmis hreinsibúnaður. Eins og kunnugt er taka plöntur lofttegundir upp í gegnum loftaugun á neðra borði blaðanna. Úr andrúmsloftinu taka þær upp koldíoxíð og nota það ásamt vetni, sem fæst úr vatni, til þess að framleiða lífræn efni úr ólífrænum við ljóstillífun, en súrefninu skila þær út í andrúmsloftið. Við rannsóknirnar kom í ljós, að þær taka ekki aðeins upp koldíoxíðið heldur líka allflestar skaðlegu lofttegundirnar. Plöntur með mikinn blaðmassa hreinsuðu andrúmsloftið að jafnaði betur en aðrar, en gerð laufblaða hefur líka áhrif á afkastagetu tegundanna. Sem dæmi má nefna, að tegundin Chlorophytum elatum fjarlægði 2,29 míkrógrömm af formaldehyði fyrir hvern fersentímetra af laufblaði á sex klukkustundum. Þessi tegund er náskyld veðhlaupara (C. comosum), sem er algeng stofuplanta hér á landi. Og svipaða sögu er að segja af kærleikstréinu (Philodendron bipinnatifidum) sem er meðal auðveldustu plantna í stofuræktun. Af öðrum afkastamiklum hreinsiplöntum má nefna nornafléttu (Epipremnum aureus), kölluflekkur af ættkvíslinni Aglaonema og drekatré (Dracaena fragans).
Eitt af skaðlegri efnum í andrúmslofti í híbýlum manna er bensen, þótt í litlum mæli sé. Það er litlaus, eldfimur vökvi og er mikilvægt hráefni í efnaiðnaði og er notað í framleiðslu litarefna og lyfja. Bensen er baneitrað og krabbameinsvaldandi. Þar reyndust glitkarfa (Gerbera jamesonii) og vissar tegundir af prestafíflum af ættkvísinni Chrysanthemum eyða 2 til 4 míkrógömmum af benseni á aðeins sex tímum á hvern fersentímetra af laufblaði.
Rannsóknir þessar halda nú áfram af miklum krafti og er verið að velja þær stofuplöntur, sem eru afkastamestar. Hér er mjög athyglisvert efni á ferðinni, sem fyllsta ástæða er til að fylgjast með af fullri alvöru. Á síðari árum hefur það þótt all sérkennilegt, að vanlíðan fólks á mörgum vinnustöðum hefur aukizt verulega, þrátt fyrir hlýrri íverustaði og bættan aðbúnað að því menn hafa talið til þessa. En nú hefur það komið ótvírætt í ljós, sem ekki hefur tekizt að mæla áður, að mikil einangrun húsa, dýrindis húsbúnaður og alls kyns tæki, sem ætluð voru til þess að létta mönnum erfiði og prýða heimili og vinnustaði, gefa frá sér skaðlegar lofttegundir, og spilla svo andrúmslofti, að margt fólk er illa haldið af þrálátum veikindum. En lausnin á þessum vanda er þegar í sjónmáli, hún felst í því að rækta hin fegurstu blóm.
Heimildir:
* Siv Söderlund, 1989: Här är växterna som rensar luften! Arbetsmiljö 5/89
* Bergljot Gundersen, 1990: Levende luftfiltere. Norsk Hagetidend
11/12.
Greinin birtist í fréttabréfi um vinnuvernd. Vinnueftirlit ríkisins 4. tbl. 10. árg 1993
Leitarorð: plöntur • skaðlegar lofttegundir • vanlíðan
tadalafil review forum tadacip vs tadalafil
tadalafil 20 mg dosage tadalafil 75mg
Been shopping with them for more than 2 years and not had a problem ivermectinhumans.com. Many times blue blood effect and shipped fast. You said it nicely.!
sildenafil with food sildenafil pde5
viagra pfizer cialis generic viagra
stromectol covid 19 ivermectin tablet price
ivermectin new zealand stromectol 12mg
tadalafil sublingual review vardenafil vs tadalafil
stromectol for head lice ivermectin 4000
ivermectin 200 mcg ivermectin 0.08 oral solution
I was looking after my daughter’s cat Benny, an inside/outside cat. He flatten sacrificial lamb to a probable raccoon erosion and had what looked like a smaller injury. I cleaned it and kept him entrails but the crop didn’t seem to heal. I tried hydrogen peroxide and other products and then went to Cloverdale Dispensary as I knew they catered to animals. I gathered a some products and went to the counter quest of advice. Some time ago I described the facer I set up visible hydrogen peroxide was not a good-hearted idea and I was advised to apply Benny to a vet. I went in default of there having bought nothing so this warning did not profit the pharmaceutics in any way. When the review apothegm Benny he said the injury would never participate in healed on its own. Surgery was required to bring the two sides of the bound up in together. Benny is back with my daughter and shape thanks to list of all otc medications integrity. Great advice. Thanks a lot.
stromectol for head lice ivermectin new zealand
ivermectin 0.1 ivermectin 6mg
stromectol prices ivermectin cost canada
stromectol liquid ivermectin 4
ivermectin cream 5% ivermectin 5ml
ivermectin oral solution buy ivermectin for humans uk
how to buy stromectol ivermectin tablets order
stromectol lotion ivermectin tablets order
cialis women canadian cialis
ivermectin 8000 mcg generic ivermectin cream
viagra vs sildenafil sildenafil for dogs
lasix furosemide lasix dosage
ivermectin 1% ivermectin cost canada
stromectol for humans stromectol uk
cialis medicare cialis picture
Everlastingly giant information! We comprise lived in Cloverdale payment more than 30 years, and in that adjust we get from time to time gone to Cloverdale Pharmasave for much needed information on treating some of our four legged friends, be it the dogs, the horses or down repay the chickens. The crew and pharmacists at sildenafil cost have again been our go to for goods suggestions and tidings on treatment options. we are so appreciative to have this opulence of knowledge so close and indubitably accessible. Thank you so much! You suggested that wonderfully.
n-desmethyl tadalafil generic tadalafil canada
levitra uses what does levitra look like cost of levitra at costco
viagra story viagra on line
cialis tadalafil cialis soft tabs
sildenafil with alcohol sildenafil citrate tablets for female
tadalafil tablets 20 mg global tadalafil interactions
I don’t pull someone’s leg words to recite what Southern Pharmaceutical (kamagra) has meant to our patients and to us. Having you as a cohort in our efforts to cure our patients is wonderfully reassuring. Thank you. Lots of information!
stromectol https://antiparasiteotc.com/
?cuanto tiempo dura el efecto del sildenafil? sildenafil 10 mg
mailing prescription drugs across state lines store locator lloyds pharmacy
buy ivermectin for humans https://ivermectineffects.com/
ventolin inhaler price https://ventolinair.com/
dog antibiotics without vet prescription canadian drugs online
prescription drugs without prior prescription ed meds online without doctor prescription
https://drwithoutdoctorprescription.online/# comfortis for dogs without vet prescription
[url=https://drwithoutdoctorprescription.site/#]prescription drugs[/url] canadian drugstore online
how much is viagra mexican viagra
viagra cost best place to buy viagra online
online doctor prescription for viagra viagra from india
doxycycline without prescription doxycycline pharmacy online
https://zithromaxforsale.shop/# buy zithromax without prescription online
https://buylipitor.store/# order lipitor
https://buylipitor.store/# cheapest generic lipitor
https://diflucan.icu/# diflucan otc uk
штабелер самоходный
https://shtabeler-elektricheskiy-samokhodnyy.ru
https://cipro.best/# ciprofloxacin generic
https://gabapentin.icu/# buy neurontin online uk
монтаж вентиляции москва и область
[url=https://gdn-gyhp.ru/]https://gdn-gyhp.ru/[/url]
https://gabapentin.icu/# neurontin pill
https://erectionpills.best/# п»їerectile dysfunction medication
https://cipro.best/# ciprofloxacin
https://stromectol.life/# buy stromectol
https://drugsonline.store/# ed remedies that really work
purchase doxycycline purchase doxycycline
https://doxycyclineonline.store/# cheap doxycycline
clomid coupon clomid for sale
best way to treat ed pet meds without vet prescription canada
anti fungal pills without prescription natural drugs for ed
https://stromectol.life/# stromectol 3mg tablets
anti fungal pills without prescription drugs for ed
https://stromectol.life/# generic ivermectin
best ed medication what is the best ed pill
Як охолодити будинок у спеку не витративши грошей. Оточіть себе рослинами. Якщо у вас є невеликий вільний простір, тераса, балкон або сад, особливо в тій частині будинку, яка найбільше піддається впливу сонця, заповніть її рослинами. Вони будуть служити захистом від спеки [url=http://www.korik-poyu.ru/]порадник жіночий[/url]. Біла білизна буде як нова — ці 2 інгредієнти легко повернуть білизну речам. Після закінчення цього часу знову вручну трохи перемо речі, а потім добре прополіскують білизну будь-яким способом. Милуємося результатом!
stromectol covid stromectol 12 mg tablets
https://edpills.best/# men’s ed pills
stromectol 3mg tablets stromectol 3 mg tablets price
order stromectol over the counter ivermectin headache
https://stromectoltrust.com/# stromectol
https://stromectoltrust.com/# stromectol 3 mg tablets price
stromectol 12 mg tablets stromectol 3mg tablets
https://pharmacyizi.com/# errectile disfunction
over the counter ed drugs injectable ed drugs
https://pharmacyizi.com/# reasons for ed
[url=https://pharmacyizi.com/#]mens erections[/url] buy ed drugs online
https://pharmacyizi.com/# cheap pet meds without vet prescription
https://pharmacyizi.com/# muse ed drug
https://pharmacyizi.com/# natural remedies for ed
best ed pills comfortis for dogs without vet prescription
new ed drugs ed meds pills drugs
https://pharmacyizi.com/# ed in young men
https://pharmacyizi.com/# ed dysfunction
ed drug prices erection problems
ed treatment review ed drugs online
https://pharmacyizi.com/# ed cure
canada drugs online pharmacy Keflex
canadianpharmacymeds canada pharmacy online
https://onlinepharmacy.men/# best online pharmacy
https://allpharm.store/# Isoptin
best over the counter ed pills cure ed
ed drug prices erectile dysfunction drug
https://onlinepharmacy.men/# pharmacy coupons
https://onlinepharmacy.men/# safe reliable canadian pharmacy
https://onlinepharmacy.men/# canadian pharmacy generic cialis
canadian medications carprofen without vet prescription
canadian pharmacy viagra 50 mg cheapest online pharmacy india
https://onlinepharmacy.men/# online canadian pharmacy review
https://erectionpills.shop/# medications for ed
how to cure ed ed meds
canadian pharmacy ltd canadian pharmacy ltd
https://allpharm.store/# Caverta
erectile dysfunction drug ed medications online
https://erectionpills.shop/# erectile dysfunction drug
https://erectionpills.shop/# non prescription ed drugs
https://erectionpills.shop/# medicine for impotence
http://stromectolbestprice.com/# ivermectin for goat mites
how does ivermectin kill scabies topical ivermectin cost
https://stromectolbestprice.com/# ivermectin over the counter canada
best ed treatments online medication
treatment for erectile dysfunction ed pills online pharmacy
https://drugsbestprice.com/# buy ed pills
https://drugsbestprice.com/# best otc ed pills
natural treatment for ed drugs for ed
https://drugsbestprice.com/# generic ed pills
https://medrxfast.com/# comfortis for dogs without vet prescription
prescription drugs without prior prescription canadian online drugstore
https://medrxfast.com/# buy prescription drugs from india
https://medrxfast.com/# how can i order prescription drugs without a doctor
non prescription ed drugs canadian drugs online
canada ed drugs buy prescription drugs online without
https://medrxfast.com/# ed prescription drugs
pain meds without written prescription non prescription erection pills
https://medrxfast.com/# amoxicillin without a doctor’s prescription
https://medrxfast.com/# prescription without a doctor’s prescription
non prescription ed pills how to get prescription drugs without doctor
https://medrxfast.com/# buy prescription drugs online
https://medrxfast.com/# cheap pet meds without vet prescription
canadian drug prescription drugs online without
https://medrxfast.com/# canadian drug prices
https://medrxfast.com/# mexican pharmacy without prescription
canadian drug pharmacy non prescription ed pills
https://medrxfast.com/# canadian online pharmacy
https://medrxfast.com/# ed meds online without doctor prescription
non prescription ed pills online canadian drugstore
https://medrxfast.com/# pet meds without vet prescription canada
https://medrxfast.com/# ed meds online without prescription or membership
non prescription ed drugs non prescription ed pills
https://diflucan.life/# how to get diflucan otc
best online pharmacies
https://viagracanada.xyz/# where to buy viagra online
https://withoutdoctorprescription.xyz/# non prescription ed drugs
https://withoutdoctorprescription.xyz/# buy canadian drugs
ivermectin for cats ivermectin rosacea reddit
buy generic stromectol ivermectin 500ml
canadian pharmacy products
https://doxycycline.pro/# medication doxycycline 100mg
prescription drugs online without doctor
get prescription online
canadian pharmacy non prescription
Hd Porno izle. Asyalı. Karışık Porno İzle. Oral.
Rus Pornosu. Üvey Porno. Anasayfa › Genel › yaşlı
türk porno filmi izle. SLM BEN AYFER KOCAM İŞE GİTTİ O YOKKEN SIKILIYORUM.
true canadian pharmacy
online drugstore
canadian prescription costs
canadian internet pharmacies
canadian pharmacy us
Right here is the right site for anyone who
wishes to understand this topic. You know so much its almost hard to argue with you
(not that I really will need to…HaHa). You certainly put a new spin on a subject that
has been written about for years. Wonderful stuff, just wonderful!
My spouse and i felt quite fulfilled when Peter could conclude his investigations with the ideas he was given when using the blog. It’s not at all simplistic just to always be releasing solutions which often many others might have been trying to sell. We remember we now have you to be grateful to for that. These illustrations you made, the straightforward blog navigation, the friendships you can help create – it’s got all impressive, and it’s really facilitating our son in addition to us consider that this subject is thrilling, which is extremely important. Thanks for the whole thing!
Here is my webpage: https://cutt.us/testoximalmusclegummiesreview28217
payday loan
The point of view of your article has taught me a lot, and I already know how to improve the paper on gate.oi, thank you. https://www.gate.io/id/signup/XwNAU
licensed canadian pharmacies
you’re really a just right webmaster. The website loading
velocity is incredible. It seems that you are doing any unique trick.
Furthermore, The contents are masterpiece.
you have done a magnificent job on this topic!
I’ve been surfing online greater than three hours lately, but I by no means discovered any interesting article like yours.
It is beautiful worth enough for me. In my view, if all web owners and bloggers made good content as you probably did,
the net will likely be a lot more useful than ever before.
Touche. Solid arguments. Keep up the amazing work.
Heya i am for the first time here. I found this board
and I find It really useful & it helped me out a lot. I hope to give
something back and help others like you aided me.
Way cool! Some very valid points! I appreciate you writing this post and also the rest of the site is very good.
Thankfulness to my father who told me about this website,
this weblog is really amazing.
fantastic issues altogether, you simply gained a
brand new reader. What could you suggest about your submit that you just made a few days ago?
Any sure?
Good site you have here.. It’s difficult to find quality writing
like yours these days. I seriously appreciate individuals like you!
Take care!!
Однофазныи? стабилизатор переменного напряжения – модель широкого спектра применения в новои? линеи?ке ” бюджетных стабилизаторов (с оптимизированным схемотехническим решением). Стабилизатор напряжения навесного исполнения выполнен в виде блока, на переднеи? панели которого расположены табло индикации и выключатель сети, а на боковои? панели – 1 розетка евростандарта и сетевои? шнур подключения к сети.
стабилизаторы напряжения http://stabrov.ru.