Results 91 to 100 of about 36,603 (263)

On the Aliphatic versus Aromatic Content of the Carriers of the "Unidentified" Infrared Emission Features

, 2016
Although it is generally accepted that the so-called "unidentified" infrared emission (UIE) features at 3.3, 6.2, 7.7, 8.6, and 11.3 micrometer are characteristic of the stretching and bending vibrations of aromatic hydrocarbon materials, the exact ...
Glaser, Rainer, Li, Aigen, Yang, Xuejuan, Zhong, Jianxin   +3 more
core   +1 more source

Environmental Quality Objectives for 10 Polycyclic Aromatic Hydrocarbons (PAHs)

Ecotoxicology and Environmental Safety, 1997
Environmental quality objectives (EQOs) for water, soil, and sediment are derived for polycyclic aromatic hydrocarbons (PAHs). EQOs are an important instrument in the effects-oriented environmental policy of the Dutch Ministry of the Environment. These EQOs should be set in such a way that protection of organisms in all compartments is ensured.
Kalf, DF, Crommentuijn, T, van de Plassche, EJ   +2 more
openaire   +3 more sources

Associations of Outdoor Air Pollution With Incidence of Cancers Other Than Lung Cancer in a Large US Prospective Cohort

International Journal of Cancer, EarlyView.
Associations between outdoor air pollution and cancers other than lung cancer remain unclear, particularly in the context of tobacco use. Here, the authors assessed possible links between ambient air pollutant exposure and incidence of 20 non‐lung cancers among adults followed over a 25‐year period in the United States.
W. Ryan Diver, Lauren R. Teras, Emily L. Deubler, Alpa V. Patel, Michelle C. Turner   +4 more
wiley   +1 more source

\u3csup\u3e13\u3c/sup\u3eC NMR Analysis of Biologically Produced Pyrene Residues by \u3cem\u3eMycobacterium\u3c/em\u3e sp. KMS in the Presence of Humic Acid [PDF]

, 2007
Cultures of the pyrene degrading Mycobacterium sp. KMS were incubated with [4-13C]pyrene or [4,5,9,10-14C]pyrene with and without a soil humic acid standard to characterize the chemical nature of the produced residues and evaluate the potential for ...
Holz, Richard C., Nieman, J. Karl C., Sims, Ronald C.   +2 more
core   +1 more source

The abundances of hydrocarbon functional groups in the interstellar medium inferred from laboratory spectra of hydrogenated and methylated polycyclic aromatic hydrocarbons

, 2013
Infrared (IR) absorption spectra of individual polycyclic aromatic hydrocarbons (PAHs) containing methyl (-CH3), methylene (>CH2), or diamond-like *CH groups and IR spectra of mixtures of methylated and hydrogenated PAHs prepared by gas phase ...
Friedrich, Manfred, Henning, Thomas, Huisken, Friedrich, Jäger, Cornelia, Müllen, Klaus, Plass, Winfried, Räder, Hans-Joachim, Steglich, Mathias   +7 more
core   +1 more source

The Impact of Genetic Polymorphisms on Genotoxicity (DNA Damage) Among Children Exposed to Environmental Mutagens: A Systematic Review

Journal of Applied Toxicology, EarlyView.
ABSTRACT Children, as a particularly vulnerable group, are more susceptible to these mutagens due to their developing immune systems, higher physiological vulnerability, and increased exposure through behaviors like outdoor play and hand‐to‐mouth activities. This review aims to investigate the relationship between these environmental exposures, genetic
Thiago Guedes Pinto, Daniel Vitor de Souza, Gabriel Carvalhal de Aguiar, Ana Claudia Muniz Renno, Patricia Ramos Cury, Jean Nunes dos Santos, Rogerio Aparecido Dedivitis, Daniel Araki Ribeiro   +7 more
wiley   +1 more source

Discovery of Blue Luminescence in the Red Rectangle: Possible Fluorescence from Neutral Polycyclic Aromatic Hydrocarbon Molecules?

, 2004
Here we report our discovery of a band of blue luminescence (BL) in the Red Rectangle (RR) nebula. This enigmatic proto-planetary nebula is also one of the brightest known sources of extended red emission as well as of unidentified infra-red (UIR) band ...
Gordon, Karl D., Vijh, Uma P., Witt, Adolf N.   +2 more
core   +1 more source

PFAS properties and destruction methods: A focus on enzymatic degradation

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract Per‐ and polyfluoroalkyl substances (PFAS) are known as ‘forever’ chemicals and have lasting detrimental impact on the environment and living organisms. To understand PFAS molecules better, this review begins with an overview of PFAS definition, classifications and applications, and then provides a comprehensive summary and critical analysis ...
Guobin Liang, Hua Zhao
wiley   +1 more source

Evaluating genotoxic effects of plants exposed to heavy metals and polycyclic aromatic hydrocarbons at dumpsite, mechanic workshop and metal scrap site in Lagos

Journal of Applied Sciences and Environmental Management, 2019
Soil contamination from heavy metals and polycyclic aromatic hydrocarbons (PAHs) from dumpsite, automobile mechanic workshop and metal scrap sites pose human and ecological health risks.
N.O. Mustapha, K.I. Njoku, A.A. Adesuyi, A.O. Jolaoso   +3 more
doaj   +1 more source

When an old star smolders: On the detection of hydrocarbon emission from S-type AGB stars

, 2010
Polycyclic aromatic hydrocarbons (PAHs) produce characteristic infrared emission bands that have been observed in a wide range of astrophysical environments, where carbonaceous material is subjected to ultraviolet (UV) radiation.
A. A. Zijlstra, B. Acke, Boersma, Cami, Cau, Cherchneff, Cherchneff, Chiar, Cohen, Ferrarotti, Furlan, G. C. Sloan, Gielen, Goto, Goto, Goto, Gustafsson, H. Van Winckel, Higdon, Hony, J. A. D. L. Blommaert, Jura, Jäger, Jäger, K. Smolders, Keller, Kraemer, L. Decin, Leger, Lepp, Li, Mattioda, Mattioda, P. Neyskens, Peeters, Pino, Puget, Richer, S. Hony, S. Van Eck, Schlegel, Sloan, Sloan, Sylvester, T. Verhoelst, Tielens, van Diedenhoven, Verhoelst, Yang   +48 more
core   +1 more source