Navigation Links
Office workers carry biomarker of potentially harmful flame retardant, study finds
Date:3/25/2013

(BOSTON) -- A flame retardant removed from children's pajamas 30 years ago but now used in polyurethane foam is prevalent in office environments, especially in older buildings, where urine testing of workers turned up widespread evidence of its biomarker, a new study led by Boston University School of Public Health researchers has found.

The study, published in the journal Environment International, found that the chemical known as TDCPP -- chlorinated tris(1,3-dichloro-2-propyl) phosphate, or 'chlorinated tris' -- was present in 99 percent of dust samples taken from participants' homes, vehicles and offices, "demonstrating the widespread presence of this flame retardant in the indoor environment." The research team recruited 31 adults who worked and lived in the Boston area for the testing.

The study found that the office environment was the strongest predictor of metabolized TDCPP in urine, with significantly lower concentrations of the chemical among workers in a new office building than in older buildings. Similarly, the average concentration of TDCPP in dust was significantly lower in the new office building than in the older office buildings.

Urine samples were collected during the workday, which may explain why an association was found between the quickly metabolized chemical and characteristics of the office, rather than the vehicle or home.

"Overall, our findings suggest that exposure to TDCPP in the work environment is one of the contributors to the personal exposure for office workers. Further research is needed to confirm specific exposure sources (e.g., polyurethane foam), determine the importance of exposure in other microenvironments such as homes and vehicles, and address the inhalation and dermal exposure pathways," the research team concluded.

TDCPP, an additive to polyurethane foam used in upholstered furniture, is found in dust, where it can likely lead to human exposure. Potential health effects remain a concern. In 2011, TDCPP was added to the Proposition 65 list of chemicals known by the State of California to cause cancer.

In vitro studies suggest TDCPP may be neurotoxic, and one study found that increased concentrations in dust were associated with decreased semen quality and reduced free thyroxine in men, suggesting possible effects on fertility and thyroid function. Animal studies show TDCPP is readily absorbed through both the skin and gastrointestinal tract.

The researchers said the high concentrations observed in dust from offices could reflect requirements by the City of Boston that office furniture meet California fire retardant standards, a rule that is not required of residential furniture in Boston. The state of California has proposed a draft furniture flammability standard that could reduce the need for flame retardant chemicals in polyurethane foam. However, the standard used for office furniture has yet to be revised.

"It is currently very difficult to avoid flame retardants. Hopefully, better options will become available in the near future," said Courtney Carignan, a doctoral candidate in environmental health who co-authored the study. "Currently, the best advice we have for people is to wash your hands, especially before eating. Dust control, good ventilation and air purifiers may also be useful for reducing personal exposure."

The low concentrations of TDCPP in the newer office building suggest that its newer furniture did not contain TDCPP, or that it had not yet had sufficient time to migrate out of the products, the researchers said. If the new furniture did not contain TDCPP, it likely contained a different flame retardant such as the controversial FireMaster 550. Other differences between exposures include the possibility of more efficient ventilation or HVAC systems or cleaning methods in the newer building.

The authors urged that "more research is needed to determine factors that influence TDCPP concentrations in dust, in relation to building contents and characteristics."


'/>"/>

Contact: Lisa Chedekel
chedekel@bu.edu
617-638-7721
Boston University Medical Center
Source:Eurekalert

Related medicine news :

1. Cynthia Koenig Promoted to Executive Vice President-Chief Financial Officer of USHEALTH Group
2. Directors of The American Board of Addiction Medicine (ABAM) Foundation Select G. Gary Deverman as Chief Development Officer
3. MyoNatural Announces New Offer for Chiropractors and Doctors Offices Around the US
4. Healthesystems Appoints Dr. Robert L. Goldberg as Chief Medical Officer
5. MagicalButter Announces New Chief Financial Officer
6. Make Your Office Green: MinuteHound Software Takes Great Strides Toward Cleaner and Efficient Technology
7. Okyanos Heart Institute’s Chief Medical Officer Speaks at ACC’s Scientific Session
8. Family Medicine Physician Dr. Caracitas Opens Perth Amboy Office
9. Some family physicians offices discriminate against people with low socio-economic status
10. MinuteHound Launches Time Tracking Solution For Dentists Offices
11. Okyanos Heart Institute’s Chief Medical Officer To Speak At American College Of Cardiology Seminar In Florida
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/26/2016)... (PRWEB) , ... June 27, 2016 , ... Quality metrics ... yet in many ways they remain in the eye of the beholder, according to ... a publication of The American Journal of Managed Care. For the full issue, ...
(Date:6/26/2016)... Michigan (PRWEB) , ... June 26, 2016 , ... ... to fertility once they have been diagnosed with endometriosis. These women need a ... they also require a comprehensive approach that can help for preservation of fertility ...
(Date:6/25/2016)... ... June 25, 2016 , ... First Choice Emergency Room , ... Sesan Ogunleye, as the Medical Director of its new Mesquite-Samuell Farm facility. , ... our new Mesquite location,” said Dr. James M. Muzzarelli, Executive Medical Director of First ...
(Date:6/24/2016)... ... , ... A recent article published June 14 on E Online ... on to state that individuals are now more comfortable seeking to undergo not only ... calf and cheek reduction. The Los Angeles area medical group, Beverly Hills Physicians (BHP) ...
(Date:6/24/2016)... ... 24, 2016 , ... Global law firm Greenberg Traurig, P.A. announced that 20 ... by their peers for this recognition are considered among the top 2 percent of ... honors as members of this year’s Legal Elite Hall of Fame: Miami Shareholders ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... -- Dehaier Medical Systems Ltd. (NASDAQ: DHRM ... sells medical devices and wearable sleep respiratory products in ... agreement with Hongyuan Supply Chain Management Co., Ltd. (hereinafter ... 2016, to develop Dehaier,s new Internet medical technology business. ... leverage Hongyuan Supply Chain,s sales platform to reach Dehaier,s ...
(Date:6/24/2016)... , Belgium , June 24, ... VNRX), today announced the appointment of Dr. ... Directors as a Non-Executive Director, effective June 23, ... Audit, Compensation and Nominations and Governance Committees.  As ... Futcher will provide independent expertise and strategic counsel ...
(Date:6/23/2016)... , June 23, 2016 Research ... "Pharmaceutical Excipients Market by Type (Organic Chemical (Sugar, Petrochemical, ... (Oral, Topical, Coating, Parenteral) - Global Forecast to 2021" ... The global pharmaceutical excipients market is ... a CAGR of 6.1% in the forecast period 2016 ...
Breaking Medicine Technology: