CNN | New tests Thursday showed that radioactive iodine in Tokyo's tap water has dropped to levels considered safe for babies -- just hours after authorities announced plans to distribute bottled water to tens of thousands of parents around the Japanese metropolis.
Tests at the Kanamichi Water Purification Plant, which provides water to 23 wards in Tokyo as well as five other cities, showed 79 becquerels of radioactive iodine per kilogram of water, the city government said in a news release.
A becquerel is a measurement of radioactive intensity by weight.
This is below the 100 becquerel level, the maximum considered safe for infants ages 1 and younger. And it is well below the 210 becquerel reading measured Tuesday night