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PCBs collect in body fat and milk fat. [56] PCBs biomagnify up the food web and are present in fish and overflow of contaminated aquifers. [57] Human infants are exposed to PCBs through breast milk or by intrauterine exposure through transplacental transfer of PCBs [56] and are at the top of the food chain. [58]: 249ff
Bioremediation of PCBs is the use of microorganisms to degrade PCBs from contaminated sites, relying on multiple microorganisms' co-metabolism. Anaerobic microorganisms dechlorinate PCBs first, and other microorganisms that are capable of doing BH pathway can break down the dechlorinated PCBs to usable intermediates like acyl-CoA or carbon ...
Microbial biodegradation is the use of bioremediation and biotransformation methods to harness the naturally occurring ability of microbial xenobiotic metabolism to degrade, transform or accumulate environmental pollutants, including hydrocarbons (e.g. oil), polychlorinated biphenyls (PCBs), polyaromatic hydrocarbons (PAHs), heterocyclic compounds (such as pyridine or quinoline ...
Plant-based protein powders—made from rice, peas or soy—were found to contain triple the amount of lead compared to whey protein powders, which are made from the liquid byproduct of cheese ...
Olestra was approved by the Food and Drug Administration for use as a food additive in 1996 and was initially used in potato chips under the WOW brand by Frito Lay.In 1998, the first year olestra products were marketed nationally after the FDA's Food Advisory Committee confirmed a judgment it made two years earlier, sales were over $400 million.
PCB-compounds, always containing low concentrations of dioxin-like PCBs and PCDFs, were synthesized for various technical purposes (see Polychlorinated biphenyls). They have entered the environment through accidents such as fires or leaks from transformers or heat exchangers, or from PCB-containing products in landfills or during incineration.
The first-of-its-kind research found that a common chemical, musk ambrette, used to add scent to a wide range of products, may cause the body to release puberty-related hormones earlier than it ...
The PCBs made their way to the treatment plant when sewer lines were cleaned years after the facility stopped operation. The United States Geological Survey analyzed in 2014 nine different consumer products containing biosolids as a main ingredient for 87 organic chemicals found in cleaners, personal care products, pharmaceuticals, and other ...