渥太华哪里有买去除甲醛的活性炭颗粒? 新房子木地板有味道很担心对宝宝不好
你的意思是说加拿大的房子没有甲醛是嘛?
哦。。。那么我进房子感到味道确实很大呀,除了通风外还有什么办法可以去味呢
没别的办法,只有把有味的空气置换掉,才能治本。不过并不是说有味就有害,新房的味道大部分是木料的味道,所以要去除所有的味道,需要很长的时间。但这种味道对身体没什么危害,住进去2星期也就闻不出来了。
1/3 formaldehyde world production used in wood products (ply wood, particle board), remainder used in paint glue etc. Carpet, laminate, hardwood floor, ply wood under layer, your cabinets, fresh paint emits formaldehyde....this is not just wood smell!
Activate carbon is an effective way in removing formaldehyde but there's no indicator when the carbon becoming saturated.
There are air purifier using oxidization agent to oxidize formaldehyde into water and carbon dioxide. But they are expensive, once again, you don't know when the oxidization agent is depleted.....
In the mean time, best bet is to keep ventilation on 24 hours, get a air purifier with good size activated carbon filter ( talking about pounds of carbon).
plywood也好,laminate也好,总之你上面提到的这些东西用到胶和油漆等是干燥过的,99%以上的挥发物在盖房之前就挥发掉了,其所用的胶和油漆也是不含甲醛,丙酮等有害稀料的,所以也就不含有害物的残留。
活性炭的吸附作用是毋容置疑的,不过用活性炭吸附室内的有害气体则属于无稽之谈。主要是因为推动力不足,而不是什么饱和不饱和。
活性炭过滤网用来干什么?吸入的大气没那么脏,排出的气体没必要滤。
We all wish the poisoness compound will be 100% evaporated. however as low as less than 1ppm will cause irritation...
Read the following for EPA (US)
http://www.epa.gov/iaq/formalde.html
read the following:
A 1988 Canadian study of houses with urea-formaldehyde foam insulation found that formaldehyde levels as low as 0.046 ppm were positively correlated with eye and nasal irritation.[31] Although many studies have failed to show a relationship between formaldehyde and asthma, a recent review of studies has shown a strong association between exposure to formaldehyde and the development of childhood asthma.[32] Chronic exposure at higher levels, starting at around 1.9 ppm, has been shown to result in significant damage to pulmonary function, resulting in reduced maximum mid-expiratory flow and forced vital capacity.[33] There is also research that supports the theory that formaldehyde exposure contributes to reproductive problems in women. A study on Finnish women working in laboratories at least 3 days a week found a significant correlation between spontaneous abortion and formaldehyde exposure, and a study of Chinese women found abnormal menstrual cycles in 70% of the women occupationally exposed to formaldehyde compared to only 17% in the control group.[33] There have been no studies done on the effect of formaldehyde exposure on reproduction in men.
Also this:
The United States Environmental Protection Agency (EPA) allows no more than 16 ppb formaldehyde in the air in new buildings constructed for that agency.[39] A U.S. Environmental Protection Agency study found a new home measured 0.076 ppm when brand new and 0.045 ppm after 30 days.[40] The Federal Emergency Management Agency (FEMA) has also announced limits on the formaldehyde levels in trailers purchased by that agency.[41] The EPA recommends the use of “exterior-grade” pressed-wood products with phenol instead of urea resin to limit formaldehyde exposure, since pressed-wood products containing formaldehyde resins are often a significant source of formaldehyde in homes.[35]
Also, read this one as well:
http://www.reuters.com/article/2011/06/11/us-usa-health-cancer-idUSTRE75A0KN20110611
您拿20多年前的东西,而且是怀疑不确定的statement,想说明什么问题呀?我告诉你,现在这问题早就有定论了,所以生产中根本就不允许使用甲醛了。
对了,再科普一下。如果建材中真含有甲醛,2,3年房子内都会有甲醛遗留,你想躲都躲不掉。![]()
Read before post...
It's still couple more years till 2013. Emission from wood product to be less than 0.09ppm.... but still causing eye/lung irritation for some sensitive people.
So called international ban was not very true... read before post is important. you can read more at : http://en.wikipedia.org/wiki/Formaldehyde
" International bans
There are several web articles claiming that formaldehyde has been banned from manufacture or import into the European Union (EU) under REACH (Registration, Evaluation, Authorization, and restriction of Chemical substances) legislation. This appears to be misinformation, as official EU chemical databases contradict these claims as of February 19, 2010. This misconception has gained some ground. Formaldehyde is not listed in the Annex I of Regulation (EC) No 689/2008 (export and import of dangerous chemicals regulation), nor on a priority list for risk assessment. However, formaldehyde is banned from use in certain applications (preservatives for liquid-cooling and processing systems, slimicides, metalworking-fluid preservatives, and antifouling products) under the Biocidal Products Directive.[49][50] In the EU, the maximum allowed concentration of formaldehyde in finished products is 0.2%, and any product that exceeds .05% has to include a warning that the product contains formaldehyde.[43]
In the United States, a bill was passed in congress on July 7, 2010 regarding the use of formaldehyde in hardwood plywood, particle board, and medium density fiberboard. The bill limited the allowable amount of formaldehyde emissions from these wood products to .09 ppm, a standard which companies will have to meet by January, 2013.[51] Formaldehyde was declared a toxic substance by the 1999 Canadian Environmental Protection Act.[52]"
Make sure you will read this:
http://greenbuildingelements.com/2009/03/29/formaldehyde-in-new-home-is-10-times-the-safe-level/
http://www.sriconsulting.com/CEH/Public/Reports/658.5000/