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Radiation in tap water adds to Tokyo concerns

Photo by Karie Bradley

Photo by Karie Bradley

TOKYO - A spike in radiation levels in Tokyo tap water spurred new fears about food safety Wednesday as rising black smoke forced another evacuation of workers trying to stabilize Japan's radiation-leaking nuclear plant.

Radiation has seeped into vegetables, raw milk, the water supply and seawater since a magnitude-9 quake and killer tsunami crippled the Fukushima Dai-ichi power plant nearly two weeks ago. Broccoli was added to a list of tainted vegetables, and U.S. officials announced a block on Japanese dairy and other produce from the region.

The crisis is emerging as the world's most expensive natural disaster on record, likely to cost up to $309 billion, according to a new government estimate. The death toll continued to rise, with more than 9,400 bodies counted and more than 14,700 people listed as missing.

Concerns about food safety spread Wednesday to Tokyo after officials said tap water showed elevated levels: 210 becquerels per liter of iodine-131 -- more than twice the recommended limit of 100 becquerels per liter for infants. The recommended limit for adults is 300 becquerels.

Infants are particularly vulnerable to radioactive iodine, which can cause thyroid cancer, experts say. The limits refer to sustained consumption rates, and officials urged calm, saying parents should stop giving the tap water to babies, but that it was no worry if the infants already had consumed small amounts.

They said the levels posed no immediate health risk for older children or adults.