Results 11 to 20 of about 2,694 (171)

Risk prioritisation of (emerging) contaminants in aquaculture production. [PDF]

EFSA J
Abstract The European Union (EU) food safety legislative framework is designed to guarantee the safety of the entire food production chain through a comprehensive ‘from farm to fork’ approach. Chemical safety of the food production chain, encompassing contaminants, veterinary drugs and pesticide residues, food/feed additives, is further regulated by a ...
Butovskaya E, Sele V, Lundebye AK, Hannisdal R, Ali A, Menotta S, Bernhard A.   +6 more
europepmc   +2 more sources

Pathways to Aromatics in the Catalytic Pyrolysis of a Polyvinylchloride Model Compound Revealed by Operando Photoelectron Photoion Coincidence Spectroscopy. [PDF]

ChemSusChem
How are aromatics formed during catalytic PVC pyrolysis? By utilizing photoelectron photoion coincidence spectroscopy, the cross‐linking reaction mechanism is unveiled to proceed via butadiene dimerization and trimerization, yielding 5‐ or 6‐membered ring species, which are the precursors for benzene, toluene, and xylenes.
Cabana J, Zhang Z, Pan Z, Kumar P, Wu X, Bodi A, Garcia GA, Shen Y, Xiao X, Ma H, Huang C, Liu C, Zhao L, Pan Y, Zhou Z, van Bokhoven JA, Hemberger P.   +16 more
europepmc   +2 more sources

Sources of unintentionally produced polychlorinated naphthalenes [PDF]

Chemosphere, 2014
The European Union has proposed that polychlorinated naphthalenes (PCNs) should be included in the annexes of the Stockholm Convention on Persistent Organic Pollutants, signifying that there will be an increase in activities aimed at reducing PCN emissions.
Guorui, Liu, Zongwei, Cai, Minghui, Zheng   +2 more
openaire   +2 more sources

Characterization of 9 Gas Chromatography Columns by Linear and Lee Retention Indices for Polychlorinated Biphenyls and Polychlorinated Naphthalenes

Separations, 2020
Polychlorinated biphenyls (PCBs) and naphthalenes (PCNs) are ubiquitous environmental contaminants with varying degrees of toxicity. There are hundreds of possible congeners with similar chemical characteristics, which make these compounds difficult to ...
Conner Stultz, Frank L. Dorman
doaj   +1 more source

Insights into toxicity of polychlorinated naphthalenes to multiple human endocrine receptors: Mechanism and health risk analysis

Environment International, 2022
This study explored the combined disruption mechanism of polychlorinated naphthalenes (PCNs) on the three key receptors (estrogen receptor, thyroid receptor, and adrenoceptor) of the human endocrine system.
Xixi Li, Wenwen Gu, Baiyu Zhang, Xiaying Xin, Qiao Kang, Min Yang, Bing Chen, Yu Li   +7 more
doaj   +1 more source

Evaluation of the pollution pressures posed by groups of chemicals on British riverine invertebrate populations. [PDF]

Biol Rev Camb Philos Soc
ABSTRACT Globally, rivers receive a diverse range of chemicals, including metals, pesticides, persistent organic pollutants, petrochemicals, human and veterinary pharmaceuticals and personal care products. However, the extent to which these different chemical groups affect riverine invertebrate communities is not well defined.
Poyntz-Wright IP, Harrison XA, Tyler CR.
europepmc   +2 more sources

Legacy and emerging persistent organic pollutants in the freshwater system: Relative distribution, contamination trends, and bioaccumulation

Environment International, 2020
In this study, a comprehensive investigation was performed to understand the overall occurrence, relative distribution, and bioaccumulation of seven different groups of POPs, comprising 27 polybrominated diphenyl ethers (PBDEs), 76 polychlorinated ...
Gyojin Choo, Wenting Wang, Hyeon-Seo Cho, Kyungtae Kim, Kyunghwa Park, Jeong-Eun Oh   +5 more
doaj   +1 more source

The toxicological profile of polychlorinated naphthalenes (PCNs)

Science of The Total Environment, 2022
The legacy of polychlorinated naphthalenes (PCNs) manufactured during the last century continues to persist in the environment, food and humans. Metrological advances have improved characterisation of these occurrences, enabling studies on the effects of exposure to focus on congener groups and individual PCNs. Liver and adipose tissue show the highest
Fernandes, Alwyn R., Kilanowicz, Anna, Stragierowicz, Joanna, Klimczak, Michał, Falandysz, Jerzy   +4 more
openaire   +4 more sources

Bridging the Energy Benefit and POPs Emission Risk from Waste Incineration

The Innovation, 2021
Summary: Incineration has been the globally controversial and concerned method of solid waste disposal. Energy recovery and volume reduction are the benefits from waste incineration, but risk due to release of persistent organic pollutants is the major ...
Cui Li, Lili Yang, Xiaoyun Liu, Yuanping Yang, Linjun Qin, Da Li, Guorui Liu   +6 more
doaj   +1 more source

Distribution of Polychlorinated Naphthalenes in Sediment From Industrialized Coastal Waters of Korea With the Optimized Cleanup and GC-MS/MS Methods

Frontiers in Marine Science, 2021
Limited studies have been conducted on polychlorinated naphthalenes (PCNs) in the coastal environment worldwide. In this study, analytical methods were optimized for 18 PCN congeners in sediment using a multi-layer silica gel column and a gas ...
Ha-Hyun Lee, Sunggyu Lee, Jung Suk Lee, Hyo-Bang Moon   +3 more
doaj   +1 more source