|
||||
|
|
||||
|
||||
|
All materials on this website are copyrighted. Copyright © 2005-2009 by The Trustees of Columbia University in the City of New York. All rights reserved.
Mac users: please note that our site is optimized for the Safari browser. |
|
Environmental health
|
|
Originally Published: April 20, 2001
|
|
(1)
Hi Alice, I have purchased a set of stoneware dishes for a friend for Christmas, but my family has told me that stoneware (even when microwave and dishwasher safe) can be harmful due to a high lead content. Is this true of all stoneware dinnerware? I would appreciate any information on the subject. Thanks!(2)
We received a 24 percent leaded crystal decanter from Poland as a gift. We would like to use it for a liquor decanter. Is it safe? Are we in danger of lead poisoning? Dear Readers, The Centers for Disease Control and Prevention(CDC) report that there have been cases of lead poisoning stemming from the use of stoneware and terra cotta (glazed or unglazed ceramic jars). Usually, the culprit is lead-based glazing that's applied to decorate the dishes. These cases most often occur in china or stoneware that:
The U.S. Food and Drug Administration recommends that ceramic dishes imported from China, where manufacturing practices may not be as carefully regulated, be vigilantly monitored for lead content. The Environmental Defense Fund web site lists Chinese ceramic dish manufacturers who meet U.S. safety standards. It also contains info about What You Should Know about Lead in China Dishes that names manufacturers and specific china patterns that use lead-free glaze. For reader number two (last, but still leaded), beverages — alcoholic or non- — must not be stored in crystal decanters that contain any lead because this mineral can leach out into the drink. Acidic liquids, such as fruit juice or vinegar, increase the leaching effect. Your decanter will still be beautiful filled with colored water, or with your favorite beverage — right before the toast. Regular use of leaded crystal glassware is not recommended, particularly for children and pregnant women (because of lead's harmful effects on fetal development). FYI, although it is possible to get lead poisoning from dishes and crystal, it's much more likely to be exposed to this mineral through lead-based paint. Lead particles can be released into the air and inhaled in the following scenarios:
Children are more susceptible to experience lead poisoning because their bodies absorb lead more easily, and their developing nervous systems are more quickly and permanently damaged by the effects of lead. Health officials estimate that between 5 - 10 percent of American children have a harmful amount of lead in their blood. African-American and Hispanic children, as well as those living in poverty, are significantly more likely to have dangerous lead exposure. Poor nutrition makes children more vulnerable to the effects of lead. At high concentrations, lead poisoning can cause seizures, coma, and death. Symptoms of low to moderate levels of lead poisoning include:
Because these symptoms are vague and easily mistaken for other problems, the American Academy of Pediatrics recommends that children believed by their pediatrician to be at risk for lead poisoning (including those living in poverty or in older housing) be routinely screened. Some states have mandatory lead screening for young children. Since lead is stored in children's bones, building up over time to toxic levels, prevention and early detection of lead poisoning is crucial. A few drops of blood taken from a fingertip in a health care provider's office can be used to detect lead poisoning in its early stages, before symptoms and irreversible damage appear. Lead test kits that can detect the presence of lead in drinking water, paint, dishes, or other surfaces are also available for sale on the Internet for about $10 - 50. Some kits contain chemicals that turn color when exposed to lead particles, while others allow you to collect samples and mail them back to a lab for testing. The Occupational Safety and Health Administration (OSHA) offers a description and evaluation of some of the more popular lead home test kits on their web site.
Related Q&As |