Phthalates are a group of chemical compounds that occur in construction materials and a great number of common consumer goods such as toys, cleaning solvents, packaging, etc. Phthalates are suspected of disrupting hormones and may be related to several chronic diseases in children, like asthma and allergies, as shown in earlier studies.
Flooring materials using softened PVC contain phthalates and have previously been shown to be a significant source of phthalates in indoor dust. This new study was designed to investigate whether flooring materials using PVC and other housing-related factors, together with other individual factors, can be tied to the uptake of phthalates by infants.
Urine samples were taken from 83 randomly selected children between the ages of two and six months by the county council in Värmland in western Sweden. The prevalence of four types of phthalates in the urine was measured, and data were collected about flooring materials and the home, the family’s lifestyle, and individual factors for the infants. The levels of certain phthalates (MBzP, a BBzP metabolite) proved to be higher in the urine of babies that had PVC materials on their bedroom floor. The levels of another phthalate metabolite related to DEHP were lower in two-month-old children if they were exclusively breastfed, with no supplements.
Earlier studies from the current group have shown that PVC flooring can be tied to the occurrence of phthalates in indoor dust, and that exposure for BBzP in indoor dust could be associated with allergic conditions in children. These new data thus show that the uptake of phthalates in infants can be related to flooring materials using softened PVC in the home. It should be pointed out that both DEHP and BBzP are banned for use in toys for small children owing to health risks.
“With this study as a basis, we can establish that there are other sources that should be taken into consideration in regard to the uptake of banned chemicals and that we do not only ingest them in our food,” says Carl-Gustaf Bornehag, professor of public health at Karlstad University and leader of the study. The findings also show that phthalates can be taken up in different ways, both through food and probably through breathing and through the skin.
Contacts for more information:
Carl-Gustaf Bornehag, professor, project director of the SELMA study, Karlstad University and the Science Partner Technical Research Institute of Sweden. Mobile: +46 (0)70 5866565; e-mail email@example.comBo A Jönsson, professor, in charge of chemical urine analyses, Lund University. Tel: +46 (0)46 173186; e-mail firstname.lastname@example.org
Fredrik Carlstedt, physician, Värmland County Council. Mobile: +46 (0)70 2599489. e-mail Fredrik.email@example.com
Publication: Carlstedt, F., Jönsson, B.A., Bornehag, C.G. PVC flooring is related to human uptake of phthalates in infants. Indoor Air Accepted manuscript online: 7 MAY 2012 11:05AM EST | DOI: 10.1111/j.1600-0668.2012.00788
Carina Olsson | idw
New study: How does Europe become a leading player for software and IT services?
03.04.2017 | Fraunhofer-Institut für System- und Innovationsforschung (ISI)
Reusable carbon nanotubes could be the water filter of the future, says RIT study
30.03.2017 | Rochester Institute of Technology
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
25.04.2017 | Physics and Astronomy
25.04.2017 | Materials Sciences
25.04.2017 | Life Sciences