日本進口燕麥片含微量銫

http://hk.news.yahoo.com/%E6%97%A5%E6%9C%AC%E9%80%B2%E5%8F%A3%E7%87%95%E9%BA%A5%E7%89%87%E5%90%AB%E5%BE%AE%E9%87%8F%E9%8A%AB-100400041.html

真的只有微量嗎?