Among the group of polybrominated diphenyl ethers used as flame-retardants, the fully brominated diphenyl ether, decabromodiphenyl ether (decaBDE), is the most commonly used. Despite the large usage of decaBDE, neither the metabolic pathways nor the absorption have been addressed, and there are very few studies on its toxicology. In this work, it is shown that after a single oral dose of 14C-la...

Polybrominated diphenyl ethers (PBDEs), a major class of flame retardants, are ubiquitous environmental contaminants with particularly high concentrations in humans from the United States. This study is a first attempt to report and compare PBDE concentrations in blood drawn from a family. Serum samples from family members collected at two sampling occasions 90 days apart were analyzed for PBDE...

BACKGROUND Human exposure to polybrominated diphenyl ethers (PBDEs) is virtually universal in the United States. Although the uses of these chemicals as flame retardants in fabrics, foams, and plastics are well defined, human exposure pathways are not well understood. OBJECTIVES This study was designed to assess current PBDE body burdens and identify residential sources of exposure among 29 m...

Polybrominated diphenyl ethers (PBDEs) are potentially harmful and persistent environmental pollutants. Despite evidence that soils are a major sink for PBDEs, little is known regarding their behavior in this medium. An environmentally relevant level of a commercial penta-BDE mixture (75 microg kg(-1)) was added to topsoil, and the extractability of three congeners (BDE-47, -99, and -100) was m...

BACKGROUND Recent studies have reported blood levels of polybrominated diphenyl ethers (PBDEs) in the U.S. population. Information about neonatal levels and about the relationship to polychlorinated biphenyls (PCBs) exposures is limited. OBJECTIVES The objective was to characterize levels and determinants of fetal exposure to PBDEs and PCBs among newborns from Baltimore, Maryland. METHODS W...

Sediment cores were taken in 2001 and 2002 in Lake Superior at six locations away from lakeshores and segmented at 0.5-5 cm intervals. The year of sediment deposition was estimated for each segment of four cores using the 210Pb dating technique. Samples were Soxhlet-extracted and cleaned up by silica gel fractionation, and the concentrations of 10 polybrominated diphenyl ethers (PBDEs) and 19 p...

The use of polybrominated diphenyl ethers (PBDEs) is increasing annually in China. Although several studies have reported significant contamination by these compounds in biological samples in China, little is known about the factors that may influence the levels of exposure and the potential health risk for infants. We investigated PBDE exposure levels in breast milk, its influencing factors an...

A growing body of evidence suggests that chemicals interfere with the age onset menarche. We conducted a review in order to demonstrate relationship between several categories and searched for English language papers using Medline/PubMed database until April 2023. The chemical factors found affect menarche were prenatal antenatal smoke, phthalates, phenols, organochlorines, perfluoroalkyls poly...

We present the design and synthesis of a new covalent triazine framework with high content N atoms bearing phenanthroline moieties. This material displays interesting luminescence phenomena enhanced photoredox activity as consequence synergistic combination both N-containing aromatic fragments. As catalytic application, reduction variety brominated challenging chlorinated structures, including ...

Background: Polybrominated Biphenyls (PBBs) and Polybrominated Diphenyl Ethers (PBDEs) are semi-permanent Halogenated compounds that are mainly used in flame retardant. These contaminants as endocrinedisrupting associated with dysfunction of immune, endocrine and nervous systems. Influence various physiological processes such as menarche, birth weight, fetus growth and development, head circumf...