|
http://epa.gov/radtown/tv-computer.html:
8 q& ]% d. k) C( S+ E “There is no evidence that radiation from televisions or
% u( D1 K6 Q# L- N, V3 A0 fcomputers has resulted in human injury. The radiation safety standards
b! L( p1 d6 A. x2 lfor TVs, computers and other consumer products set and enforced by FDA
5 W3 Z/ z" N2 |: ualso work to keep you safe. Keep in mind that television and computer " V+ c0 w) h) e' Q! E0 C
screens have not been found to give off any measurable level of - e' z* S$ d0 T, ]
radiation.
n& P5 i7 `1 u& G: ~ There are two simple steps you can take if you are concerned about * ?7 j* G7 P8 Q: Q
being exposed to radiation from television or computer screens.
1 {6 B c x& z7 S; S6 G! J
% S/ E; L9 u6 ^3 x2 g7 U5 [( \% b- y Time: Limit the time spent around your TV or computer screen; # x( m; ^! ?! c/ q) m: j
Distance: Increase the distance between you and the radiation : }7 _0 ]$ b7 z% \4 H
source. FDA advises sitting a distance of at least two to three feet
) V0 S4 c* D Q5 cfrom the screen to limit exposure. ” # D+ W* W. ~( v/ V* ?( j) [# ]0 m
常见辐射的问题有比较详细的问答:http://www.fcc.gov/oet/rfsafety/rf-faqs.html#Q23
8 K9 v7 O, t3 O/ Y6 s7 r 手机的SAR值查询:
8 s) w4 p m, L$ g5 L5 f绝大多数的手机都有一个“FCC ID”。打开手机后盖,把电池扣下来,
+ _; `# B5 A% D4 R* a3 d8 r( {就可发现。记下来,然后在http://www.fcc.gov/oet/ea/fccid/查询即可。例如,
6 r7 V1 _1 O7 ~) E一个手机的FCC ID是“QMNRH-103”,在网站中分别输入“QMN”和“RH-103”,
; A+ I- C) e1 [+ G- D确定即可得出结果,然后点击“Display Grant”,出现新的网页,在网页底部
, d( w6 g+ V3 o内容中即可找出该手机的头部和身体的SAR值“Head: 1.22 W/kg; Body: 0.72
' e& a# m; ]; u z; G1 YW/kg ”。该结果中还提到了手机与人体的距离等条件。有兴趣的网友可以自己) `3 A: n" P" g4 i$ @5 W
试着查下一下自己手机的SAR值。
$ a0 R/ h1 c7 A# r$ X" l: Z# m
* V3 U9 k8 k7 r6 U {* w: j# _from xys |
|