Polychlorinated naphthalenes (PCNs) include 75 congeners that had been widely used in various industries until the end of 1980s in the form of various mixtures, mainly as capacitor fluids, engine oil additives, cable insulation additives and for wood and paper impregnation [1].
The report also focuses on three particular environmental hazards: the health effects of climate change, lead-free drinking water and
polychlorinated biphenyls, which are banned toxic chemicals that are still found in the environment.
High stability, the quality that made
polychlorinated biphenyls (PCBs) so useful in hundreds of industrial and commercial applications during the mid-1900s, has ensured the compounds' continuing presence in the environment despite decades of banned and restricted use.
Firefighters working in the rubble of the World Trade Center were exposed to potentially hazardous aerosolized dust consisting of pulverized cement, glass fibers, asbestos, lead, polycyclic aromatic hydrocarbons,
polychlorinated biphenyls, and
polychlorinated furans and dioxins produced as combustion byproducts from the collapsed and burning buildings.
Primary hazardous substances that have been documented at the site include
polychlorinated dibenzo-p-dioxins and
polychlorinated dibenzofurans.
Polychlorinated biphenyls, polybrominated diphenyl ethers, polybrominated biphenyls, phthalates, bisphenol-A and halogens such as fluoride, bromide and iodide can bind to thyroid hormone receptors and exert negative effects.
Polychlorinated biphenyls (PCBs) are a family of 209 synthetic hydrocarbons once extensively used in a variety of industrial applications as coolants or lubricants.
There is increasing global concern regarding the utilisation and discharge of
polychlorinated biphenyl (PCB) compounds into the environment.
Degradation of
polychlorinated dibenzo-p-dioxins in aqueous solution by Fe(II)/H2O2/UV system.