Lynch Robert, Elledge Brenda, Peters Christopher
University of Oklahoma Health Sciences Center, Department of Occupational and Environmental Health, Oklahoma City, OK 73104, USA.
J Environ Health. 2008 May;70(9):36-40, 53.
Since the early 1990s, numerous studies in Mexico have demonstrated an association between the use of lead-glazed ceramic cooking ware (LGC) and elevated blood lead levels. We sought to determine whether ceramic ware collected from the Hispanic community in Oklahoma City contained lead and to quantify the amount of lead that leached into foods cooked in those vessels. Lab results were combined with consumer intake levels for foods and compared with the provisional tolerable total intake level (PTTIL) for lead. The authors found that 52 percent of the vessels they tested exceeded the FDA action level for ceramic ware. Consumption of a low-pH food (tomatoes) cooked in 23 of 25 vessels would result in a dose of lead exceeding the PTTIL compared with 3 of 25 vessels and 5 of 25 vessels for a higher-pH foods (hominy and beans, respectively). The results of the study indicate that LGC is still used in the local community and represents a significant public health concern.
自20世纪90年代初以来，墨西哥的大量研究表明，使用铅釉陶瓷炊具（LGC）与血铅水平升高之间存在关联。我们试图确定从俄克拉荷马城的西班牙裔社区收集的陶瓷器皿是否含铅，并量化渗入这些器皿所烹饪食物中的铅含量。实验室结果与食物的消费者摄入量水平相结合，并与铅的暂定可耐受总摄入量水平（PTTIL）进行比较。作者发现，他们测试的器皿中有52%超过了FDA对陶瓷器皿的行动水平。在25个器皿中的23个中烹饪低pH值食物（西红柿）会导致铅摄入量超过PTTIL，而对于高pH值食物（分别为玉米粥和豆类），25个器皿中有3个和5个会出现这种情况。该研究结果表明，当地社区仍在使用LGC，这是一个重大的公共卫生问题。
