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:1/24/2017)... ... January 24, 2017 , ... ... of a new report from the Frank Hawkins Kenan Institute of Private ... business leaders, academics and policy makers identified concrete solutions at the “What’s Next, ...
(Date:1/24/2017)... ... January 24, 2017 , ... The results from the ... and particularly good news for prostate cancer patients: incidents of cancer is down as ... the report the cancer death rate has dropped from its peak of 215.1 in ...
(Date:1/24/2017)... ... January 24, 2017 , ... American Family Care (AFC) has opened a new ... care for residents in the area. The Bedford clinic will be the nineteenth location ... years by Dave Adams and Dr. Kristina Orio. Adams and Orio also independently own ...
(Date:1/24/2017)... Overland Park, KS (PRWEB) , ... January 24, ... ... rating to Premensa, a leading natural supplement for relieving premenstrual syndrome, or ... premenstrual syndrome at some point. These symptoms can include cramps, constipation, irritability, headaches, ...
(Date:1/24/2017)... ... 2017 , ... “Who Would Have Dreamed: A Novel of Miracles”: a beautiful and poignant ... understand its purpose in her life. “Who Would Have Dreamed: A Novel of Miracles” is ... love of writing. , Sharon shares that she started her spiritual journey later ...
Breaking Medicine News(10 mins):
(Date:1/24/2017)... Market Research Future has a half cooked research report on Global Wound ... and expected to continue its growth by the end of 2022. ... Wound Closure ... 2019 and reaching a value of 13 billion by 2019 and 21 ... Wound Closure Device Market has been growing rapidly and is expected to ...
(Date:1/24/2017)... , Jan. 24, 2017 Market Research Future has a ... Market. The global market for Plastic Surgery & Integumentary System is ... end of the forecasted period. Market Highlights ... Global Plastic Surgery & Integumentary ... predicted that the market will reach high growth figures and thriving ...
(Date:1/24/2017)... 2017 Research and Markets has announced the ... - Product, Material - Forecast to 2025" report to their ... The ... CAGR of around 5.4% over the next decade to reach approximately ... that the market is witnessing include 3D medical printing is expected ...
Breaking Medicine Technology: