【在 F***Q 的大作中提到】 : : do you worry about radiation when you take a flight? do you worry when you : climb a rocky mountain? actually, what exact radiation do you worry about?
it sounds a lot, but seriously, it is not much at all based on a report from a biased source: http://www.marble-institute.com/pdfs/truthaboutgraniteradonradi "the amount of radon gas emitted by a granite countertop is less than one millionth of that already present in household air from other sources." believe it or not, it is up to you
这种卖石头的协会肯定不会自砸饭碗。 http://www.nytimes.com/2008/07/24/garden/24granite.html?pagewan “But with increasing regularity in recent months, the Environmental Protection Agency has been receiving calls from radon inspectors as well as from concerned homeowners about granite countertops with radiation measurements several times above background levels.” "Research scientists at Rice University in Houston and at the New York State Department of Health are currently conducting studies of granite widely used in kitchen counters. William J. Llope, a professor of physics at Rice, said his preliminary results show that of the 55 samples he has collected from nearby fabricators and wholesalers, all of which emit radiation at higher-than-background levels, a handful have tested at levels 100 times or more above background." 当然不是所有granite这么恐怖,有好的,但是要是自己摊上了个坏的就是不好,反正 有不错的替代品,不用也罢。
【在 F***Q 的大作中提到】 : : it sounds a lot, but seriously, it is not much at all : based on a report from a biased source: : http://www.marble-institute.com/pdfs/truthaboutgraniteradonradi : "the amount of radon gas emitted by a granite countertop is less than one : millionth of that already present in household air from other sources." : believe it or not, it is up to you
no and never did. I am worried about isotope radiation.
【在 F***Q 的大作中提到】 : : it sounds a lot, but seriously, it is not much at all : based on a report from a biased source: : http://www.marble-institute.com/pdfs/truthaboutgraniteradonradi : "the amount of radon gas emitted by a granite countertop is less than one : millionth of that already present in household air from other sources." : believe it or not, it is up to you
y*j
42 楼
做一次飞机根据时间差不多等于1/10到半次胸透。
【在 T*****u 的大作中提到】 : no and never did. I am worried about isotope radiation.
as State , http://thestatsblog.wordpress.com/2008/08/01/what%E2%80%99s-lur "Both Consumer Reports and The Environmental Protection Agency suggest that fears about granite countertops have been overhyped – and Consumer Reports tracks some of the most damning information to rival, non-granite countertop manufacturers. There have been multiple tests of many different types of granite and emissions have been found, in almost all cases, to be negligible ." "As Columbia’s Brenner told WebMD, “Even a countertop that is ten or a hundred times higher than average is going to constitute a minimal contribution of radon.”"
【在 y***j 的大作中提到】 : 这种卖石头的协会肯定不会自砸饭碗。 : http://www.nytimes.com/2008/07/24/garden/24granite.html?pagewan : “But with increasing regularity in recent months, the Environmental : Protection Agency has been receiving calls from radon inspectors as well as : from concerned homeowners about granite countertops with radiation : measurements several times above background levels.” : "Research scientists at Rice University in Houston and at the New York State : Department of Health are currently conducting studies of granite widely : used in kitchen counters. William J. Llope, a professor of physics at Rice, : said his preliminary results show that of the 55 samples he has collected
“in almost all cases, to be negligible”还是那个看法,可能大部分没问题,但 是万一碰上有问题的像纽约时报那家就惨了。这种东西反正也无可替代,有的是替代品 ,如果我不会主动装,但是如果有,也当然不会拆了。
that Reports countertop negligible
【在 F***Q 的大作中提到】 : : as : State : , : http://thestatsblog.wordpress.com/2008/08/01/what%E2%80%99s-lur : "Both Consumer Reports and The Environmental Protection Agency suggest that : fears about granite countertops have been overhyped – and Consumer Reports : tracks some of the most damning information to rival, non-granite countertop : manufacturers. There have been multiple tests of many different types of : granite and emissions have been found, in almost all cases, to be negligible
granite emits radon and gamma radiation. Most granites' radiation is negligible compared to the environmental radiation. But some granites' radiation is relatively high, especially those with pink color and flowing pattern. You can request a test at the granite shop.
s*z
65 楼
排前途无量包。。。。
【在 y***j 的大作中提到】 : 不好意思,还在上学中。。。
m*s
66 楼
我辍学很久了。
不好意思,还在上学中。。。
【在 y***j 的大作中提到】 : 不好意思,还在上学中。。。
y*j
67 楼
排前途无量包。。。。
【在 m********s 的大作中提到】 : 我辍学很久了。 : : 不好意思,还在上学中。。。
m*s
68 楼
等你毕业了,我雇你,oracle,会吗?
排前途无量包。。。。
【在 y***j 的大作中提到】 : 排前途无量包。。。。
F*Q
69 楼
the 100pCi/L reading sounds really fishy to me, and the description how this was measured is quite vague. the proper way to measure radon level is to close all doors and windows for at least 48 hours. The reading should represents room air average. The 100pCi/L can easily be a misinterpretation of the Geiger counter reading by scaling the local radiation proportionally. If the radon level was indeed measured correctly, what she has was not a counter-top, but an "atomic bomb", as said in the reference I cited. In any case, that singular event should not be over-interpreted. Otherwise, you are going to jump in the FUD hoops from the non-granite countertop vendors.
【在 y***j 的大作中提到】 : “in almost all cases, to be negligible”还是那个看法,可能大部分没问题,但 : 是万一碰上有问题的像纽约时报那家就惨了。这种东西反正也无可替代,有的是替代品 : ,如果我不会主动装,但是如果有,也当然不会拆了。 : : that : Reports : countertop : negligible
【在 F***Q 的大作中提到】 : : the 100pCi/L reading sounds really fishy to me, and the description how this : was measured is quite vague. : the proper way to measure radon level is to close all doors and windows for : at least 48 hours. The reading should represents room air average. The : 100pCi/L can easily be a misinterpretation of the Geiger counter reading by : scaling the local radiation proportionally. : If the radon level was indeed measured correctly, what she has was not a : counter-top, but an "atomic bomb", as said in the reference I cited. In any : case, that singular event should not be over-interpreted. Otherwise, you are
i*r
75 楼
Thanks. I will definitely request a test at the granite shop.
【在 a*****0 的大作中提到】 : granite emits radon and gamma radiation. Most granites' radiation is : negligible compared to the environmental radiation. But some granites' : radiation is relatively high, especially those with pink color and flowing : pattern. You can request a test at the granite shop.
u*q
76 楼
淫荡哥原奶是嫩枝。。。
【在 y***j 的大作中提到】 : 不好意思,还在上学中。。。
s*z
77 楼
赞后知后觉。。。
H*a
78 楼
Google research result: Brown Pearl 6” by 6” sample 1” thick 4 urem/hr background 11 urem/hr on contact 30 CPM background 140 CPM on contact Giallo California 6” by 6” sample 1” thick 4 urem/hr background 12 urem/ hr on contact 30 CPM background 140 CPM on contact Iberian Bordeau/Brazil 50-60 uR/hr Ivory Fantasy/India 50-60 uR/hr Vyara Gold/India 50-60 uR/hr and a “hot spot” of 85 uR/hr Stony Creek Pink/CT-USA 40-50 uR/hr and a “hot spot” of 70 uR/hhr We are ivory fantasy. Should be good. Wakakaka~