By Chikako Mogi and Randy Fabi
TOKYO/SINGAPORE, March 29 (Reuters) - Mitsui O.S.K. Lines has not yet decided what it will do with its container ship when it returns to Japan this week, a company official said on Tuesday, after China rejected the vessel for "abnormal" radiation levels.
The MOL Presence is the first ship barred from unloading its cargo at a foreign port over radiation concerns since Japan's Fukushima nuclear plant was crippled by the March 11 earthquake, an industry group official said.
Governments, including China and the United States, have begun screening for radiation ships that travelled from Japan's quake-hit northeast, threatening to slow seaborne trade for the world's third largest economy.
"The container ship is expected to arrive in the port of Kobe on Wednesday," said a spokeswoman for the world's 11th largest container shipper. "The travel plan on when or whether the container ship will depart Kobe is not decided as of now."
Chinese authorities detected a maximum of 3.5 microsieverts per hour on MOL's ship when it arrived at the port of Xiamen in eastern Fujian province last week, the company spokeswoman said.
That is above the global average of naturally occurring background radiation, but half of the cosmic radiation experienced on a Tokyo-New York flight. [ID:nL3E7ER02S]
The Chinese standard level was not disclosed.
U.S. SHIPMENT
The MOL Presence originated in California, stopping in Tokyo for only a few hours on March 17 before arriving in China four days later, port authorities said.
Ports in Tokyo Bay, located 240 km (150 miles) south of the Fukushima nuclear plant, remains outside the exclusion zone for most shipping companies.
However, at least three container firms -- Germany's Hapag-Lloyd , Claus-Peter Offen and Hong Kong's Orient Overseas Container Line -- have widened their "no-go" area to more than double the industry norm to include Tokyo Bay.
"At this point, there is no change to our shipping schedule, including location of the ports we call at," the MOL's spokeswoman said. She said this is the first case a Mitsui ship was turned back .
Radiation levels as of late Monday in Tokyo Bay ports were considered "very safe", Japan's transport ministry said on its website. (Reporting by Chikako Mogi in Tokyo and Randy Fabi in Singapore; Editing by Clarence Fernandez)