Results 31 to 40 of about 27,489 (163)

The Internal Relation between Quantum Chemical Descriptors and Empirical Constants of Polychlorinated Compounds

Molecules, 2018
Quantum chemical descriptors and empirical parameters are two different types of chemical parameters that play the fundamental roles in chemical reactivity and model development.
Jiangchi Fei, Qiming Mao, Lu Peng, Tiantian Ye, Yuan Yang, Shuang Luo   +5 more
doaj   +1 more source

Sampling and Analysis for Polychlorinated Naphthalenes in the Environment

Journal of AOAC INTERNATIONAL, 1978
Abstract Soil, sediment, biota, 24-hr integrated water, and 2 consecutive 24-hr integrated air samples were collected at several geographic sites, extracted, cleaned up, and analyzed for polychlorinated naphthalenes (PCNs). Analysis by quadrupole gas-liquid chromatography /mass spectrometry / computer (GLC / MS / COMP), using multiple ...
M D, Erickson, L C, Michael, R A, Zweidinger, E D, Pellizzari   +3 more
openaire   +2 more sources

The effect of prenatal exposure on disposition of hexachloronaphthalene in female Wistar rats and fetal compartment

International Journal of Occupational Medicine and Environmental Health, 2018
Objectives Due to structural and toxicological similarities to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), polychlorinated naphthalenes (PCNs) were included in the Stockholm Convention on Persistent Organic Pollutants (POPs) in 2015 ...
Joanna Stragierowicz, Krystyna Sitarek, Bartłomiej Grobelski, Anna Kilanowicz   +3 more
doaj   +1 more source

Determination of 8 polychlorinated naphthalenes in bivalve molluscs by accelerated solvent extraction, solid-phase extraction and gas chromatography-triple quadrupole mass spectrometry

Zhongguo shipin weisheng zazhi
ObjectiveTo establish a method for the determination of polychlorinated naphthalenes in bivalve molluscs by gas chromatography-triple quadrupole mass spectrometry （GC-MS/MS）.MethodsThe samples were dehydrated with anhydrous Na2SO4， extracted by ...
LI Zeran, LYU Xiuming, RONG Weiguang, JI Wenliang   +3 more
doaj   +1 more source

Small-scale waste incinerators in rural China: Potential risks of dioxin and polychlorinated naphthalene emissions

Emerging Contaminants, 2019
Rapid development has led to a tremendous increase in the volume of solid waste produced in rural China. The annual amount of solid waste produced from Chinese rural areas is approximately 110 million tons.
Lili Yang, Guorui Liu, Qingqing Zhu, Minghui Zheng   +3 more
doaj   +1 more source

Food Contamination and Safety in Nigeria: A Systematic Synthesis of Heavy Metals, Microbial Pathogens, and Health Risk Metrics

Food Safety and Health, EarlyView.
This is an infographic driver of food contaminants and health effects. ABSTRACT Food safety remains a critical challenge in Nigeria due to rapid urbanization and weak regulatory enforcement. This systematic review synthesizes empirical evidence from 2015 to 2025 to characterize food contaminant profiles and associated human health risks in Nigeria ...
Cecilia Nwadiuto Obasi, Naomi A. Mogborukor, Baridoo Donatus Dooka, Polycarp Dauda Madaki, Chiara Frazzoli, Mohamed Haddad, Orish Ebere Orisakwe   +6 more
wiley   +1 more source

Levels and spatial distribution of gaseous polychlorinated biphenyls and polychlorinated naphthalenes in the air over the northern South China Sea

, 2012
Monitoring marine persistent organic pollutants (POPs) is important because oceans play a significant role in the cycling of POPs. The South China Sea (SCS) is surrounded by developing countries in Southeast Asia which are centers of e-waste recycling ...
Li, Jun, Pan, Xiaohui, Liu, Xiang, Li, Qilu, Zhang, Gan, Xu, Yue   +5 more
core   +2 more sources

Photocatalytic and Biotechnological Strategies for Remediation of Persistent Organic Pollutants: Mechanisms, Toxicity, and Antimicrobial Perspectives

Environmental Toxicology, EarlyView.
ABSTRACT Persistent organic pollutants (POPs) pose significant ecological and human health risks due to their persistence, bioaccumulation, toxicity, and global distribution. Conventional remediation methods are often inadequate for achieving complete mineralization, demonstrating the need for advanced and substantial approaches.
Viola O. Okechukwu, Patrick B. Njobeh, Jonathan O. Okonkwo   +2 more
wiley   +1 more source

Polychlorinated naphthalenes (PCNs) in Chinese forest soil: Will combustion become a major source?

, 2015
We collected O- and A-horizon soil samples in 26 Chinese mountainous forests to investigate the content, spatial pattern, and potential sources of polychlorinated naphthalenes (PCNs).
Li, Jun, Zhu, Haolin, Pan, Suhong, Zheng, Qian, Zhang, Gan, Luo, Chun Ling, Nizzetto, Luca, Xu, Yue   +7 more
core   +1 more source

Action of Halowax 1051 on Enzymes of Phase I (CYP1A1) and Phase II (SULT1A and COMT) Metabolism in the Pig Ovary

International Journal of Endocrinology, 2013
Polychlorinated naphthalenes (PCNs) are a group of organochlorinated compounds exhibiting dioxin-like properties. Previously published data showed the direct action of PCN-rich Halowax 1051 on ovarian follicular steroidogenesis. Taking into consideration
Justyna Barć, Anna Karpeta, Ewa Łucja Gregoraszczuk   +2 more
doaj   +1 more source