Diphenyl Ether Molecular Weight
Can your sofa be causing Graves' disease and hyperthyroidism in your cat? A report published in Environmental Science & Technology, a publication of the American Chemical Society, suggests that many cases of feline hyperthyroidism are associated with exposure to environmental contaminants called polybrominated diphenyl ethers (PBDEs), which are present in flame retardants.
The study from which the report was based, was conducted jointly by researchers at the EPA's National Health and Environmental Effects Laboratory and Indiana University. In the study, which involved 23 pet cats with feline hyperthyroidism, PDBE blood levels were three times as high as those in younger, non-hyperthyroid cats. Ideally, PBDE and related endocrine disruptors that seriously damage health would not be present in the blood of any animals or humans. Sadly, this isn't the case.
Early Concerns
PBDEs were first introduced about 30 years ago as a fire-prevention measure. PBDE is present in household dust from contaminated carpet padding, polyurethane foams, furniture and mattresses. PBDE has become so ubiquitous that it’s even present in canned cat foods made of fish and seafood. Like most industrial chemicals, their effects on health weren’t well studied before their introduction. Concerns regarding the safety of PBDEs were first raised in the late 1990s with studies suggesting that PBDEs cause liver and nerve toxicity in animals.
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