都是核輻射，就好比較了。上海北京都不到100，東京是138。會比較不？

TOKYO (Dow Jones)--Radiation levels in central Tokyo remained about four times higher than normal levels Tuesday evening, but the amount is not enough to cause immediate harm to the human body, said an official at the Tokyo Metropolitan Government.

The Tokyo Metropolitan Government said Tuesday on its website that radiation levels in downtown Tokyo stood at an average 0.138 microsievert an hour around 0800 GMT, compared with the 0.035 microsievert an hour a person would typically be exposed to in central Tokyo due to background radiation.

所有跟帖： 

• 東京本底值？那是沒有發生核電事故前的本底值。咳！有了核事故，那個值就別提了 -山東山西- ♂ (57 bytes) () 03/22/2011 postreply 06:43:00

• 核輻射，上海低於東京。隻有上海電磁輻射（正常水平）可能超過東京核輻射（超標水平），所以才有質疑 -山東山西- ♂ (388 bytes) () 03/22/2011 postreply 06:56:42

• 回複：都是核輻射，就好比較了。上海北京都不到100，東京是138。會比較不？ -xhualee- ♀ (278 bytes) () 03/22/2011 postreply 07:17:48