Investigations into a novel method for atmospheric polycyclic aromatic hydrocarbon monitoring
نویسندگان
چکیده
منابع مشابه
Investigations into a novel method for atmospheric polycyclic aromatic hydrocarbon monitoring.
A novel analytical method for atmospheric polycyclic aromatic hydrocarbons (PAHs) was developed based on laser induced fluorescence (LIF) of samples on quartz multi-channel polydimethylsiloxane traps. A tunable dye laser with a frequency doubling crystal provided the excitation radiation, and a double monochromator with a photomultiplier tube detected emitted fluorescence. The method allowed fo...
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Context. This is the fourth in a series of papers based on the ISOCAM Parallel Survey at 6.7 μm. While the first three papers have been devoted to active galactic nuclei (AGN), here we report on emission-line galaxies without AGN signatures in their optical spectra. Aims. Polycyclic aromatic hydrocarbon (PAH) emission has been found in both starbursts and modestly starforming galaxies, but the ...
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intentionally manufactured or synthesized, as well as dioxins; however, they exist in fossil fuels, such as petroleum and coal. They are organic pollutants produced unintentionally by the combustion of organic compounds, like fossil fuels and waste. Especially, PAHs are formed during incomplete combustion; some PAHs, such as benzo(a)pyrene, have high carcinogenicity and mutagenicity for humans ...
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Polycyclic aromatic hydrocarbons (PAHs) are included in various environmental pollutants such as airborne particles and have been reported to induce a variety of toxic effects. On the other hand, PAH derivatives are generated from PAHs both through chemical reaction in the atmosphere and metabolism in the body.PAH derivatives have become known for their specific toxicities such as estrogenic/an...
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The far-IR characteristics of astrophysically relevant polycyclic aromatic hydrocarbons (PAHs) averaging in size around 100 carbon atoms have been studied using the theoretical spectra in the NASA Ames PAH IR Spectroscopic Database. These spectra were calculated using density functional theory. Selections of PAH species are made, grouped together by common characteristics or trends, such as siz...
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ژورنال
عنوان ژورنال: Environmental Pollution
سال: 2009
ISSN: 0269-7491
DOI: 10.1016/j.envpol.2009.03.004