Results 51 to 60 of about 141,006 (175)

Longitudinal study of temporal trends in urinary polycyclic aromatic hydrocarbon metabolites and their repeated cross-sectional association with oxidative stress

Environment International
Continuous human biomonitoring of urinary monohydroxy polycyclic aromatic hydrocarbon metabolites (OH-PAHs) enables the characterization of temporal trends and exposure patterns.
Si Zhou, Qin Li, Xiangyu Jia, Jia He, Hua Bi, Rende Huang, Jun Yuan, Rongfei Peng, Lei Tan   +8 more
doaj   +1 more source

Potential role of PM2.5 in melanogenesis

Environment International, 2019
Ambient particulate matter 2.5 (PM2.5) is one of the main components of air pollutants, which can absorb many polycyclic aromatic hydrocarbons and metals.
Fen Peng, Gaku Tsuji, Jian-zhong Zhang, Zhou Chen, Masutaka Furue   +4 more
doaj   +1 more source

Synthesis of polycyclic aromatic quinones by continuous flow electrochemical oxidation: anodic methoxylation of polycyclic aromatic phenols (PAPs)

Beilstein Journal of Organic Chemistry
The electrochemical oxidation of polycyclic aromatic phenols (PAPs) has been developed in a microfluidic cell to synthesize polycyclic aromatic quinones (PAQs). Methanol was used as nucleophile to trap the phenoxonium cation formed in the oxidation as an
Hiwot M. Tiruye, Solon Economopoulos, Kåre B. Jørgensen   +2 more
doaj   +1 more source

Removal of pyrene from aqueous solutions by adsorption onto Brazilian peat samples

Adsorption Science & Technology, 2016
Pyrene is a polycyclic aromatic hydrocarbon, classified as a priority pollutant. Aiming to minimize the presence of this polycyclic aromatic hydrocarbon in aquatic ecosystems, it is important to develop and consider new alternatives that enable its ...
Francine Girardello, Suzimara Rovani, Marcelo Giovanela, Andreia Neves Fernandes   +3 more
doaj   +1 more source

Polycyclic aromatic hydrocarbons

, 2007
Polycyclic aromatic hydrocarbons (PAH) are a group of structurally related chemical compounds that are frequently produced during incomplete combustion of organic matter and are among the most widespread environmental pollutants. This chapter enumerates common sources of environmental PAH that contribute to human exposures including air and water ...
Stellman, Steven D., Guidotti, Tee L.
openaire   +2 more sources

Polycyclic Aromatic Hydrocarbons [PDF]

Journal of Chemical Education, 2004
The Featured Molecules for the month of February are a number of polycyclic aromatic hydrocarbons (PAHs) discussed in the article “Fluorescence, Absorption, and Excitation Spectra of Polycyclic Aro...
openaire   +1 more source

Complexation between copper(II)-dissolved organic matter shows heavy metal pollution in large-scale estuaries in the north-west Pacific

Communications Earth & Environment
Large-scale estuaries of Tumenjiang River, Liaohe River, Yellow River, Huaihe River, Changjiang River, and Zhujiang River in the north-west Pacific are confronted with latent heavy metal pollution.
Benxin Yu, Dongping Liu, Zhipeng Yao, Fang Yang, Hongjie Gao, Zhaoyong Bian   +5 more
doaj   +1 more source

Absorption and Fluorescence Spectroscopy of 1,2 : 3,4-Dibenzanthracene

International Journal of Photoenergy, 2012
Polycyclic aromatic hydrocarbon compound, 1,2 : 3,4-dibenzanthracene, is spectroscopically analyzed in ethanol. Ultraviolet absorption spectra were taken and fluorescence measurements were performed.
Fuat Bayrakceken, Korkut Yegin, Erdal Korkmaz, Yakup Bakis, Bayram Unal   +4 more
doaj   +1 more source

AhR-mediated activities of polycyclic aromatic compound (PAC) mixtures are predictable by the concept of concentration addition

Environment International, 2014
Risk assessments of polycyclic aromatic hydrocarbons (PAHs) are complicated because these compounds exist in the environment as complex mixtures of hundreds of individual PAHs and other related polycyclic aromatic compounds (PACs).
Maria Larsson, John P. Giesy, Magnus Engwall   +2 more
doaj   +1 more source

Simultaneous Determination of Polycyclic Aromatic Hydrocarbons and Their Nitro-derivatives in Airborne Particulates by Using Two-dimensional High-performance Liquid Chromatography with On-line Reduction and Fluorescence Detection

Asian Journal of Atmospheric Environment, 2017
An analytical method using high-performance liquid chromatography (HPLC) with fluorescence (FL) detection was developed for simultaneously analyzing 10 polycyclic aromatic hydrocarbons (PAHs) and 18 nitro-derivatives of PAHs (NPAHs).
Yaowatat Boongla, Walaiporn Orakij, Yuuki Nagaoka, Ning Tang, Kazuichi Hayakawa, Akira Toriba   +5 more
doaj   +1 more source