PBBs (Polybrominated Biphenyls) Analysis

Polybrominated biphenyls (PBBs) are a class of halogenated biphenyls in which 1-10 hydrogen atoms are replaced by bromine atoms. These compounds are called PBBs, but they also include monobrominated structures (ie, a bromine atom attached to the biphenyl molecule). Bromine atoms can be attached to the biphenyl molecule in 209 possible configurations.

PBBs are usually white, off-white or beige powders at room temperature. All congeners are soluble in oil and organic solvents such as benzene and toluene, but insoluble in water. PBBs are extremely stable, thus persistent in the environment. Currently, for example, the use of PBBs in electrical and electronic products sold in European Union countries is restricted. However, it is widely used commercially as flame retardant additives in synthetic fibers and molded plastics, and as a fire retardant in lacquers and coatings and automobile upholstery.

In general, PBBs are chemically resistant and resist heat, acids, bases and oxidation. With these unique properties, PBBs are highly demanded by industries producing a variety of consumer products. However, these properties make these compounds highly persistent in the environment and bioaccumulate in organisms and contribute to their toxic effects. PBBs have been detected in air, dust, soil, fish and other seafood, meat and meat products, and milk and dairy products. PBBs are released into the air during production as well as during the combustion of PBB-containing materials. However, PBB-containing materials are no longer in circulation today, and incineration in recent years is unlikely to be a significant source of PBB to the atmosphere. The primary sources of stale PBBs in soil are manufacturing operations and disposal of PBB-containing products.

Exposure to PBBs, both in vivo and in vitro, is associated with a wide spectrum of effects that vary depending on the method of exposure, the age and sex of the individual, and the dose/duration of exposure. Early developmental exposures to these chemicals are particularly devastating and may have different consequences than adult exposure.

Our organization also provides PBBs (polybrominated biphenyls) analysis services with its trained and expert staff and advanced technological equipment, among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors.