| TUESDAY JUNE 27 2000 PUBLISHED BY CHINA DAILY | |||||
| CITY NEWS | |||||
|
Flying high Kids learn od city's culture More control spraying of termite nests downtown A toast to queen's health JV insurers get diplomas at Fudan Better air quality reported Drugs hit female, young Erotic dancers caught in act $12,000 still unclaimed Police seize thief wanted by Japan Whiter than white at the tooth wash Likely end to two-way charges on cell phones Film stars light way for future women |
Survey finds lead in teas LOCAL tea drinkers are warned to be careful about what they drink because some teas have been found to contain excessive levels of lead and pesticide. The Shanghai Technical Supervision Bureau has examined 61 types of teas including four scented, 42 green and 15 oolong and found nearly one-third of them have a purity problem. The results showed some are above the national standard which requires 1 kilogram of tea contain no more than 2 milligrams of lead and less than 0.2 milligram of pesticides. The sample teas came from the East China provinces of Zhejiang, Anhui, Fujian, Southwest China's Guizhou, Central China's Henan and South China's Guangxi Zhuang Autonomous Region. But the contaminated teas were mainly from Zhejiang and Fujian provinces, China's two major tea producers, the survey found. Thirteen teas which contain excessive lead include "Dragon Well" tea produced in Hangzhou, which has been found to be contaminated with an excessive amount of lead. The lead content in top-quality "Dragon Well" tea sold by Shanghai Huangshan Tea Company reached 13.6 milligrams a kilogram, far exceeding international standards. Each kilogram of the second-grade "Dragon Well" tea sold by Wangyiji Tea Company contained 17.9 milligrams of lead. Two teas produced by Zhejiang Hangzhou Lin'an Tea Company and Zhejiang Taishun Kangming Tea Company contained 0.35 and 0.27 milligrams of DDT (dichloro-diphenyl-trichloroethane) respectively, a highly poisonous pesticide. Medical experts say too much lead in the body will disturb the nervous system, causing sleepiness and a dispirited disposition. Fang Youzong, an inspector from the city's food hygiene bureau, said the blood and teeth can also be affected by the lead and pesticide residues in the tea. The survey indicated tea trees planted too close to traffic-heavy roads or factories which discharge a lot of waste gas or water, are likely to accumulate lead. Lead from waste water discharged by factories will penetrate trees through the soil. Randomly discarded batteries are also to blame for badly polluted soil in tea plantations. Habitual tea drinkers should be cautious when choosing teas though the volume of lead or pesticide dissolved in a cup of tea is unlikely to reach dangerous levels. Cai Jing of Shanghai Tea Import and Export Company said the business of the company has not been affected by the survey and stressed they have reliable sources of tea. "All our products have to pass lawful commodity inspection supervised by the Chinese Academy of Agricultural Sciences being sold," Cai said. She said to assure the quality, suppliers to the company are not allowed to use pesticide on their tea plantations. "It is crucial to the exports of our country," she said. "Short-sighted planters' reckless usage of pesticide has undermined the nation's leading position as a major tea producer." Tea traders have been issued with official warnings not to bring unqualified products into the city. Copyright 2000 by Shanghai Star. All rights reserved. |
|||