Concentrations of several congeners and classes of organohalogen contaminants (OHCs) and/or their metabolites, namely organochlorine pesticides (OCs), polychlorinated biphenyls (PCBs), hydroxylated-PCBs (OH-PCBs), methylsulfonyl-PCBs (MeSO(2)-PCBs), polybrominated diphenyl ether (PBDE) flame retardants, and OH-PBDEs, were measured in cerebrospinal fluid (CSF) of short-beaked common dolphins (n ...

Abstract. Polychlorinated biphenyls (PCBs) are nowadays mainly unintentionally produced, since their use and manufacture has been banned. PCBs, especially those dioxin-like compounds, have proven harmful to ecosystems human health. Detailed information about the spatiotemporally distribution of produced PCBs (UP-PCBs) is crucial for understanding environmental fate associated health risks. Howe...

BACKGROUND Polychlorinated biphenyls (PCBs) and related compounds such as polychlorinated dibenzofurans (PCDFs) and polychlorinated dibenzo-dioxins (PCDDs) alter sexual maturation and endocrine function in animals. In 1978-1979, a mass poisoning occurred in central Taiwan from cooking oil contaminated by heat-degraded PCBs and oxidated compounds PCDFs. We tested the hypothesis that in utero exp...

In May 2015, a fire occurred at Terminal 3 of the Rome–Fiumicino International Airport. To respond to health concern associated with resulting emissions combustion products, Pier D underwent pre-emptive sequestration. The Italian National Institute Health was asked carry out environmental monitoring affected areas, and evaluate related risk for health. Polychlorinated dibenzo-p-dioxins (PCDDs),...

As high trophic level, non-migratory marine mammals, harbor seals (Phoca vitulina) inhabiting the Strait of Georgia, Juan de Fuca Strait and Puget Sound (collectively referred to as the Salish Sea) in northwestern North America provide an integrated measure of coastal food web contamination. We measured congener-specific polychlorinated biphenyls (PCBs), polybrominated diphenylethers (PBDEs), p...

Polychlorinated biphenyls (PCBs) were widely used in various industrial applications. Research confirmed that some PCB congeners degrade slowly in the environment and can build up in the food chain. Poisoning episodes in Asia were initially attributed to PCB-contaminated oil, although subsequent analysis suggested that thermal degradation products of PCBs were responsible for the observed toxic...

Mexico has a great variety of aquatic ecosystems; however, most them present significant contamination levels. Despite the efforts to monitor toxic and bioaccumulative persistent pollutants, they are still insufficient outdated data from Mexican coasts, especially in polychlorinated biphenyls (PCBs) polyaromatic hydrocarbons (PAHs), due number bodies that have received little or no attention. I...

The Republic of Serbia signed and ratified the Stockholm Convention on Persistent Organic Pollutants. Law ratification was adopted actions were defined through National Implementation Plan Action Plan. On their basis Project Proper Management Final Disposal Polychlorinated Biphenyls (PCBs) created. Institute Nikola Tesla (INT) participated in realization project. In period from 2015 to 2022, 60...

Persistent organic pollutants (POPs) are lipophilic, constant and bioaccumulative toxic compounds. In general, they considered resistant to biological, photolytic, chemical degradation with polychlorinated biphenyls (PCBs) belonging these chemicals. PCBs were never produced in Serbia, but imported mainly used electrical equipment, transformers, capacitors. Our study aimed analyse sequential mul...

Hydroxylated polychlorinated biphenyls (OH-PCBs) are formed as major metabolites of PCBs by cytochrome P450 enzyme-mediated oxidation. It has been reported that their total concentration in serum samples of Yusho patients ranged from 390 to 1300 pg/g. We measured the concentration of OH-PCBs in blood collected from 183 Yusho patients living in Japan in 2010. The major OH-PCB metabolites were 4-...