Results 11 to 20 of about 10,036 (140)

Synthesis of Aza-indeno-aza-fluoranthene and Constitutional Isomers by Ring-Size Selective C-H Activation. [PDF]

Chemistry
A series of constitutional isomers of aza‐indeno‐aza‐fluoranthene with different ring sizes has been synthesized. Their product distribution was controlled by adjusting parameters such as base, temperature, solvent, or additive in the Pd‐catalyzed direct arylation step, thereby providing an overview about the options to control ring‐size selectivity in
Keck C, Rominger F, Garg S, Elstner M, Mastalerz M.   +4 more
europepmc   +2 more sources

Occurrence and fate of PTE, PAH, and PFAS trace contaminants in soils and river suspended particulate matter in three DANUBEAN river catchments. [PDF]

J Environ Qual
Abstract This study aimed to investigate the occurrence and concentration patterns of three groups of trace contaminants—potentially toxic elements (PTEs), polycyclic aromatic hydrocarbons (PAHs), and per‐ and polyfluoroalkyl substances (PFASs)—in river catchments with contrasting land use and landscape characteristics. A second objective was to relate
Jolankai Z, Clement A, Kardos MK, Kittlaus S, Weber N, Gabriel O, Broer MB, Braun K, Milačič Ščančar R, Kozlica K, Ščančar J, Bordós G, Zessner M, Zoboli O.   +13 more
europepmc   +2 more sources

Exogenous IAA application affects the specific characteristics of fluoranthene distribution in Arabidopsis

Ecotoxicology and Environmental Safety, 2023
Indole-3-acetic acid (IAA) is a crucial growth regulator involved in the accumulation of polycyclic aromatic hydrocarbons (PAHs). However, the precise physiological and molecular mechanisms underlying IAA-mediated plant growth and PAH accumulation are ...
Mengjia Zhou, Ji Wang, Jing Zhou, Lin Liu, Ruixuan Yang, Jingjing Xu, Mingxiang Liang, Li Xu   +7 more
doaj   +1 more source

Interactions between Zooplankton and Crude Oil: Toxic Effects and Bioaccumulation of Polycyclic Aromatic Hydrocarbons [PDF]

, 2013
We conducted ship-, shore- and laboratory-based crude oil exposure experiments to investigate (1) the effects of crude oil (Louisiana light sweet oil) on survival and bioaccumulation of polycyclic aromatic hydrocarbons (PAHs) in mesozooplankton ...
Almeda, Rodrigo, Buskey, Edward J., Hyatt, Cammie, Liu, Zhanfei, Wambaugh, Zoe, Wang, Zucheng   +5 more
core   +5 more sources

Responses of CYP450 dependent system to aliphatic and aromatic hydrocarbons body burden in transplanted mussels from South coast of Portugal [PDF]

, 2011
Mussels Mytilus galloprovincialis were cross-transplanted at South Portugal from a reference site (site 1) to a site more contaminated with hydrocarbon compounds (site 2), and vice versa, in an active biomonitoring (ABM) concept, to assess the ...
Bebianno, Maria João, Ferreira, A. M., Lopes, Belisandra   +2 more
core   +1 more source

Monitoring Polycyclic Aromatic Hydrocarbon Concentrations in Austin, TX, After the Coal-Tar Sealant Ban [PDF]

, 2012
Polycyclic Aromatic Hydrocarbons (PAH) are a group of chemicals consisting of three or more fused benzene rings. Many of this group of compounds are considered Toxic Pollutants and listed as Priority Pollutants by the EPA.
Richter, Aaron
core   +1 more source

Geochemical characteristics of Cambrian bitumen and Cambrian-Ordovician source rocks in the Keping area, NW Tarim Basin

Frontiers in Earth Science, 2023
The Cambrian Yuertus Formation and Ordovician Saergan and Yingan formation source rocks, which TOC contents of 0.38%–4.30%, are well developed in the Keping area of the Tarim Basin. Reservoir bitumen had been found in the Cambrian Wusongger Formation and
Shijing Xu, Shijing Xu, Jian Wang, Jian Wang, Nan Wu, Qinghai Xu   +5 more
doaj   +1 more source

Identification of sources of elevated concentrations of polycyclic aromatic hydrocarbons in an industrial area in Tianjin, China [PDF]

, 2009
The concentrations of 16 polycyclic aromatic hydrocarbons (PAHs) were determined by gas chromatography equipped with a mass spectrometry detector in 105 topsoil samples from an industrial area around Bohai Bay, Tianjin in the North of China.
Han, Jingyi, Jiao, W.T., Li, J., Lu, Y.L., Luo, W., Shi, Y.J., Wang, G., Wang, T.Y.   +7 more
core   +3 more sources

Optimization of pressurized liquid extraction using a multivariate chemometric approach and comparison of solid phase extraction cleanup steps for the determination of polycyclic aromatic hydrocarbons in mosses [PDF]

, 2012
A factorial design was used to optimize the extraction of polycyclic aromatic hydrocarbons (PAHs) from mosses, plants used as biomonitors of air pollution.
Foan, Louise, Simon, Valérie
core   +3 more sources

Detection of Aliphatically Bridged Multi-Core Polycyclic Aromatic Hydrocarbons in Sooting Flames with Atmospheric-Sampling High-Resolution Tandem Mass Spectrometry. [PDF]

, 2018
This paper provides experimental evidence for the chemical structures of aliphatically substituted and bridged polycyclic aromatic hydrocarbon (PAH) species in gas-physe combustion environments.
Adamson, BD, Ahmed, M, Hansen, N, Skeen, SA   +3 more
core   +2 more sources