Rare tea excessive soil may be trouble

Provincial Quality Supervision Bureau reported yesterday announced second quarter provincial food supervision and inspection results, Yangzhou six batches of tea Rare exceeded. Reporters learned yesterday investigation, has been detected in the earth exceeded tea products, more than half of the tea raw materials are purchased from outside.

Survey: More than half of excessive tea raw materials from overseas

For tea REE excessive harm, the reporter consulted the relevant parties, rare earth elements are not essential substances, it has some toxicity, and once excreted into the body difficult. Residual renal function in vivo would, nervous system adverse effects. Especially children, pregnant women, etc. should not be excessive drinking excessive tea water earth, rare earth elements in these kinds of people because of greater impact.

Yesterday, the reporter learned from the city quality supervision departments, which six batches of tea companies have all been put in place rectification. While the relevant parties, six batches of enterprise itself is not more than half of tea cultivation, tea raw material is not purchased from Yangzhou territory.

"Hang Set 4 tea bags of tea production, the use of very fine material from Yixing tea purchases come over there. "Quality supervision departments related parties, although the state of rare earth content in tea is 2.0mg/kg, but because the detection of rare earth elements belonging to unconventional projects, it is generally impossible to detect out enterprise. Through this testing also sounded the alarm for these enterprises, raw materials purchased after tea REE limited testing must be carried out.

Farmers: never used rare earth fertilizer application in

However, there are still two companies on the list from the local tea raw materials, according to the relevant parties, including a tea raw materials purchased from Yizheng. Official said, the industry has been saying, the use of rare earth-containing fertilizer can get a certain yield, used tea tree, can promote seedling growth and development. Yesterday, the reporter visited the farmers Town Yizheng months, the villagers Wu Shilin tea has been planted for many years, he told reporters, tea tree planting process will have fertilization, but have not heard of using rare earth-containing fertilizer.

"Tea is a rare exceeded more possibilities in the soil inside. "Yizheng Green Tea Association Deputy Secretary-General Yang Yun Peng said that in addition to the soil, such as urea, poultry manure can occur in feed REE exceeded, another example water, car exhaust and other reasons too, but be sure that No one intentionally added to the rare earth elements in tea fertilizer.

In this regard, the reporter also consulted Yangzhou Dohi station Zhangyue Ping, Zhang webmaster that soil containing rare earth rare earth elements causes excessive tea more likely. "There has not heard of rare earth-containing fertilizer, this is unlikely. "

Insiders: easy to bubble out, proposed to relax the limits

"Different tea and other crops, tea drinking brew that is often used, rare earth difficult to dissolve in water, brewing tea in less than 1/4 of the rare earth oxides leaching, the majority still remain in tea. "An industry source said that in recent years has been detected rare tea frequently exceeded, for example, Lipton, Iron Goddess of Mercy and so have the guns, ultimately can not find the murderers. Rare excessive fertilization caused some culprit, some soil built up. Proposed to re-evaluate the existing limits of tea earth, to develop a more scientific and reasonable targets. "RE excessive eating food directly will certainly harmful, but different tea, a cup of tea, the water may have only 20% of rare earth migrated to in tea. "

According to the briefing, according to the 2005 edition of "National Food Safety Standard of contaminants in foods" provides the rare earth content in tea is 2.0mg/kg. This standard cancellation in 2010. May 2012, the new "Determination of rare earth elements in plant food" national standard release, replacing the original rare test methods. Detection of rare earth content in tea by five kinds of original volume increased 16 kinds of rare earth oxides. More rigorous method of measuring total rare tea making detection value is higher than the original.

In this regard, the quality supervision department official also said that in previous years did not have tea REE detection, detection of this year, they are also more out of this feeling surprised. "Of course not all of a sudden cancellation, to have a control, but the value can be changed a bit limited. "Yizheng a tea factory in charge suggested.


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