We present a climatology of monthly and 10 zonal mean profiles of sulfur dioxide (SO2) volume mixing ratios (vmr) derived from MIPAS/Envisat measurements in the altitude range 15–45 km from July 2002 until April 2012. The vertical resolution varies from 3.5–4 km in the lower stratosphere up to 6–10 km at the upper end of the profiles, with estimated total errors of 5–20 pptv for single profiles...

Laser-induced excitation spectra of the two bands ã B 1–X̃ A 1, 2 0 1 and 10 1 of SO2 and SO2 have been recorded in a supersonic jet at a resolution of 0.015 cm. The rotational and electron-spin fine structure has been analyzed for both isotopic species. Analysis of the rotational and electron-spin fine structure yields precise values of the rotational constants A, B, and C and the spin constant...

The world has widely resorted to fossil fuels to power the industry and everyday life. In China, above 70% of the energy is extracted from coal. Emission of SO2 due to burning of fossil fuels, in particularly of coal, causes harmful impacts on the environment, human health, livestock, and plants (1,2). Many measures have been taken to cut off the emission of SO2 during the last generations. It ...

Abstract: The effect of SO2 in the photooxidation of a mixture of anthropogenic precursors is studied. For that purpose, five experiments with a mixture of 1,3,5-trimethylbenzene, o-xylene, toluene and octane in the presence of HONO were carried out in the EUPHORE outdoor chamber by adding different initial SO2 concentrations in each experiment. The experimental secondary organic aerosol obtain...

Signatures of sulfur isotope mass-independent fractionation (S-MIF) have been observed in stratospheric sulfate aerosols deposited in polar ice. The S-MIF signatures are thought to be associated with stratospheric photochemistry following stratospheric volcanic eruptions, but the exact mechanism responsible for the production and preservation of these signatures is debated. In order to identify...

The maternal diet is an important determinant of glutathione-related metabolism in rats. Glutathione (GSH) may play a major role in the detoxification of sulfur dioxide (SO2) within the lungs. The effects of fetal exposure to a low protein maternal diet upon later susceptibility to pulmonary injury induced by chronic SO2 exposure were evaluated in young adult rats. Pregnant rats were fed purifi...

[1] A NASA DC‐8 research aircraft penetrated tropospheric gas and aerosol plumes sourced from active volcanoes in Ecuador and Colombia during the Tropical Composition, Cloud and Climate Coupling (TC) mission in July–August 2007. The likely source volcanoes were Tungurahua (Ecuador) and Nevado del Huila (Colombia). The TC data provide rare insight into the chemistry of volcanic plumes in the tro...

This study investigates the efficiency of pollution permit markets by conducting an empirical study of the U.S. SO2 market. A hedonic model of coal price is estimated by using the coal price data from 1985 to 1998. The estimation results showed that the sulfur premium was in the same order as the SO2 allowance prices in the EPA auction. In addition, for 1997 and 1998, the SO2 allowance prices w...

Ageing is associated with changes in physical characteristics and decline of many physiological functions. It has been accepted that the oxidative stress or damage induced by free radicals is related to ageing. Three age groups, 3, 12 and 24 months, were used to investigate whether age-associated changes in some parameters (vitamin C and ceruloplasmin) in the plasma of male Swiss-Albino rats an...

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