The Tokyo Metropolitan Government says it has lifted its advice against using tap water for consumption by infants in Tokyo's 23 wards and 5 adjacent cities.

The government said the level of radioactive iodine-131 in water at the Kanamachi purification plant on Thursday morning had dropped to 79 becquerels per liter -- below the recommended limit of 100 for infants under 1 year old. The government added that the level has been falling for 3 days.