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Traces of radiation found in whales

world Updated: Jun 15, 2011 22:35 IST

Japanese whalers have found traces of radiation in two animals caught along the country's northern coast, presumably because of leaks from a damaged nuclear power plant, officials said on Wednesday.

Two of 17 minke whales caught off the Pacific coast of Hokkaido showed traces of radioactive cesium, both about one-twentieth of the legal limit, fisheries officials said.

They are the first whales thought to have been affected by radiation leaked from the Fukushima Dai-ichi nuclear plant since it was hit by a March 11 earthquake and tsunami.

"The levels are far below the limit, and the meat from the catch is safe for consumption," Fisheries Agency official Kosei Takekoshi said.

One of the minkes had a cesium reading of 31 becquerels per kilogram, and the other 24.3 becquerels, compared to the legal limit of 500 becquerels per kilogram for highly migratory marine products.

The 17 whales were caught off the shores of Kushiro city - a main coastal whaling hub - during an April 25-June 10 expedition.

The agency has not previously surveyed radiation in whales, so no comparison is available for exposure levels before and after the Fukushima crisis.

The government has banned fishing around the nuclear plant. Local government and fisheries officials have been conducting weekly radiation monitoring of seafood along the coast.