Navigation Links
Firing clay in unvented kilns may be a source of exposure to dioxins
Date:10/23/2007

ANN ARBOR, Mich.---Firing clay in unvented kilns could be a significant source of dioxins in people exposed regularly and over long periods, a new study suggests.

The results came out of follow-up interviews with subjects who participated in the University of Michigan Dioxin Exposure Study, which measured dioxin levels in residents in Midland and the Tittabawassee River flood plain between Midland and Saginaw.

The two-year study, commissioned by Dow Chemical Co., was to determine if elevated dioxin levels in the soil caused elevated levels of dioxins in residents' bodies.

A 35-year ceramicist had by far the highest blood dioxin levels in the study. Though the woman lived on contaminated soil, the contamination fingerprint of her blood was a closer match to the clay rather than the soil, said Dr. Alfred Franzblau, professor in the U-M School of Public Heath and co-principal investigator on the Dioxin Exposure Study. Franzblau said the woman worked with ball clay, which is used in ceramics.

Ceramics clay, sometimes referred to as ball clay, is known to be contaminated with dioxins, and Franzblau said the woman's clay displayed the same pattern of contamination shown previously to exist in ball clay tested in America and Europe. However, there are no previous reports suggesting that dioxins in clay can be a direct source of contamination for humans.

"We think they breathed it in from the volatilization when they fired the kiln," Franzblau said. The woman with the highest levels had three unvented kilns in her basement, so the fumes were released directly inside her home. Two other women who were ceramics enthusiasts also had elevated dioxin levels, though not nearly as high as the first woman. The two other women had kilns in their garages (not inside their homes), and did not use them as often.

Franzblau said it's important not to overreact to the findings, but that more study is needed to determine the impact. There may be thousands of unvented kilns being used in schools, pottery workshops and private homes.

"For most people this is not likely to result in any significant exposure," Franzblau said. "My case was somebody who did this regularly for 30 to 40 years. A child once a week in an art class is in a radically different realm. But there are other people like her and I think there needs to be more research to better characterize the danger."

The Dioxin Exposure Study did not measure health effects of dioxin on the 946 subjects who participated.

"Although we have been able to confirm that clay can be a dominant source of exposure to dioxins, you can't draw conclusions about health effects based on just three cases," said Franzblau, also an associate professor of emergency medicine.


'/>"/>

Contact: Laura Bailey
baileylm@umich.edu
734-647-1848
University of Michigan
Source:Eurekalert

Related medicine news :

1. Debate Rages over firing of HIV infected health care workers
2. Startling Expose – Physicians Often Have No Regular Source Of Health Car
3. Indian Cherry: Richest Source of Vitiamin C
4. Stem cells - New and richer source found
5. Platelets May Be The Source Of Gene Regulations
6. Walnuts a source of the Anti –oxidant Hormone Melatoni
7. Mushroom found to be a source of a new antibiotic: Plectasin
8. Urban Monkeys Source Of Virus Infections
9. Parents – Teen’s Most Reliable Source for Sex Educatin
10. Singapore’s Healthcare To Outsource To Indian Firm For Faster X-Ray Result
11. ADB To Provide Resources For Combating Bird Flu
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/27/2017)... Georgia (PRWEB) , ... March 27, 2017 , ... ... to announce that for a second year in a row; they are the ... healthcare designers in the industry voted on the award at Design Connections 2017. ...
(Date:3/27/2017)... , ... March 27, 2017 , ... The Anaheim Hills ... customers. First National Capital has added 10 new sales professionals over the past 6 ... positions by 15 additional new hires over the course of 2017. , “This ...
(Date:3/27/2017)... ... March 27, 2017 , ... Golden Triangle ... 8:00am-10:00am on Monday, April 3rd to commemorate the two-year anniversary of the facility. ... area-residents to celebrate two great years while also familiarizing themselves with the facility. ...
(Date:3/26/2017)... Ohio (PRWEB) , ... March 26, 2017 , ... ... doctors worldwide to receive the RealSelf 100 Award, a prestigious award honoring the ... cosmetic procedures and to find and connect with doctors and clinics. , In ...
(Date:3/24/2017)... ... March 24, 2017 , ... Vighter established its NAEMT ... by providing Prehospital Trauma Life Support (PHTLS) course scholarships to four medics assigned ... education developed in cooperation with the American College of Surgeons to promote critical ...
Breaking Medicine News(10 mins):
(Date:3/27/2017)... , March 27, 2017 Arena Pharmaceuticals, Inc. ... on developing novel, small molecule drugs across multiple therapeutic areas, ... Chief Executive Officer, will present a corporate update at the ... 3:40pm ET.  The conference will take place April 4-5, 2017 ... New York , NY.  A live ...
(Date:3/24/2017)... and PUNE, India , March 24, 2017 ... Bone Stimulators Market: Global Opportunity Analysis and Industry Forecast, 2014-2022," the spine bone ... reach $724 million by 2022, growing at a CAGR of 3.6% during the ... ... Allied Market Research Logo ...
(Date:3/24/2017)... Mar. 24, 2017 Research and Markets ... the U.S.: Consumer Strategies" report to their offering. ... Pain ... approach and treat their physical pain, emphasizing consumer survey analysis, ... pain sufferers and adults who have selected illnesses/conditions strongly associated ...
Breaking Medicine Technology: