No formaldehyde, a carcinogenic substance, has been found in vegetables in Vietnam, an official from the agriculture ministry said Sunday following tests.
Nguyen Xuan Hong, chief of the ministry's Plant Protection Department, said samples had been taken both from vegetables imported from China and those grown in the country.
In Vietnam, cabbages are grown in the Central Highlands province of Lam Dong and the northern province of Lao Cai, but they were all found to be free of the carcinogen, he said.
Formaldehyde, used as an embalming fluid, has been added to the list of chemicals banned from use on vegetables and fruits.
Last week the ministry ordered tests on fruits and vegetables sold in Vietnam following reports that vegetable sellers in China have been caught spraying cabbages with a formaldehyde solution to keep them fresh in transit.
Last year the US National Toxicology Program declared the solution as carcinogenic.
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