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Letteratura scientifica selezionata sul tema "Sulphur dioxide"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 27 luglio 2024

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Articoli di riviste sul tema "Sulphur dioxide"

1

Anstice, P. J. C., e J. F. Alder. "The Effect of Sulphur Dioxide on the Adsorption Properties of Activated Carbon towards Chloropicrin". Adsorption Science & Technology 15, n. 7 (luglio 1997): 541–50. http://dx.doi.org/10.1177/026361749701500707.

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Sulphur dioxide is believed to be adsorbed on activated carbons in both physically and chemically bound states. Sulphuric acid and a variety of oxygenated and hydrated sulphur oxide species are believed to be present on humidified carbons exposed to sulphur dioxide. Samples of ASC/T impregnated carbons were exposed to sulphur dioxide mixtures in humid air at 80% RG and 22°C. The sulphur dioxide-loaded carbons were then exposed to chloropicrin challenge at 5 mg/dm3 in air at 80% RH and 22°C and the chloropicrin breakthrough times measured. A relationship was found between the extra mass gain of the carbons (due to oxygen and water) with increasing sulphur dioxide loading, as predicted by other workers. The effect of sulphur dioxide loading on the chloropicrin breakthrough times was a gradual reduction to about one-third the time for unexposed carbon, with an adsorbed mass of sulphur dioxide equal to ca. 10% of the carbon mass in a 20 mm bed-depth filter.

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2

Vale, Allister. "Sulphur Dioxide". Medicine 31, n. 10 (ottobre 2003): 74. http://dx.doi.org/10.1383/medc.31.10.74.27817.

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3

Vale, Allister. "Sulphur dioxide". Medicine 35, n. 12 (dicembre 2007): 656. http://dx.doi.org/10.1016/j.mpmed.2007.09.012.

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4

Vale, Allister. "Sulphur dioxide". Medicine 40, n. 3 (marzo 2012): 158. http://dx.doi.org/10.1016/j.mpmed.2011.12.009.

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5

Palmer, Anne S., Vin I. Morgan, Mark A. J. Curran, Tas D. van Ommen e Paul A. Mayewski. "Antarctic volcanic flux ratios from Law Dome ice cores". Annals of Glaciology 35 (2002): 329–32. http://dx.doi.org/10.3189/172756402781816771.

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AbstractExplosive volcanic eruptions can inject large quantities of sulphur dioxide into the stratosphere. the aerosols that result from oxidation of the sulphur dioxide can produce significant cooling of the troposphere by reflecting or absorbing solar radiation. It is possible to obtain an estimate of the relative stratospheric sulphur aerosol concentration produced by different volcanoes by comparing sulphuric acid fluxes determined by analysis of polar ice cores. Here,we use a non-sea-salt sulphate time series derived from three well-dated Law Dome ice cores to investigate sulphuric acid flux ratios for major eruptions over the period AD 1301–1995. We use additional data from other cores to investigate systematic spatial variability in the ratios. Only for the Kuwae eruption (Law Dome ice date AD 1459.5) was the H2SO4 flux larger than that deposited by Tambora (Law Dome ice date AD 1816.7).

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6

Nyitrai, Diána Sárdy, Zsuzsanna Varga, Annamária Sólyom-Leskó, Miklós Kállay, Szabina Steckl, Balázs Nagy, Dorottya Kocsis e Eszter Antal. "Analysis of a Special Sulphite-Producing Yeast Starter after Fermentation and during Wine Maturation". Applied Sciences 12, n. 17 (2 settembre 2022): 8848. http://dx.doi.org/10.3390/app12178848.

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In the present study, we investigated the extent to which specific sulphur dioxide-producing wine yeasts produce SO2 during alcoholic fermentation and whether the SO2 they produce is sufficient to prevent oxidation during wine storage. Fermentation was carried out at 12 °C and 20 °C. After inoculation with yeast, the evolution of free and total sulphurous acid concentrations, acetaldehyde concentrations (11.6–46.9 mg L−1) and total polyphenol concentrations (137.4–244.7 mg L−1), including leucoanthocyanin and catechin concentrations (leucoanthocyanidin: 8.5–75.1 mg L−1; catechin: 70.8–115.4 mg L−1), were investigated during the storage of fermented wines. The amount of free sulphur dioxide was measured between 5 and 10 mg L−1. Total sulphuric acid ranged from 6 to 22 mg L−1, taking into account the results of the three years studied. The aim of our tests was to observe whether the use of sulphur-producing yeasts during the ageing of fermented wines showed any benefit. The results of all three vintages tested showed that neither the 12 °C nor the 20 °C fermented batches showed any advantage in using sulphur dioxide-producing yeasts. Our results show that there is no clear evidence that the yeast produces sufficient sulphur dioxide during fermentation and that there is no clear demonstrable benefit from its use.

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7

Grace, B., T. J. Gillespie e K. J. Puckett. "Uptake of gaseous sulphur dioxide by the lichen Cladina rangiferina". Canadian Journal of Botany 63, n. 4 (1 aprile 1985): 797–805. http://dx.doi.org/10.1139/b85-102.

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Samples of the lichen Cladina rangiferina were exposed to various concentrations of sulphur dioxide in a fumigation cuvette system for time periods ranging from 1 to 18 h. The cuvette system provided airstreams which, within the limits of measurement, had identical flow rates, temperatures, and relative humidities. Sulphur dioxide was added to one airstream as a treatment, while the other remained free of sulphur dioxide for control purposes. In some experiments, wind speed could be varied from 8 to 250 cm∙s−1 in a small wind tunnel placed in the fumigation cuvette. The system allowed for the calculation of sulphur dioxide uptake by the lichen sample. Potassium release was shown to increase with an increasing uptake of sulphur dioxide (time-integrated flux), but was not uniquely related to sulphur dioxide concentration alone. Extrapolation of a linear transformation of the potassium release curve to zero potassium efflux resulted in a threshold uptake value of 240 μg SO2∙g lichen−1. Internal lichen resistance and lichen boundary-layer resistance were experimentally determined for later use in an electrical analog model for the calculation of sulphur dioxide uptake.

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8

BHARDWAJ, MUKESH K., JOGANDER SINGH e ANJUL SINGH. "IMPACT OF SULPHUR DIOXIDE EXPOSURE ON PHOTOSYNTHETIC PIGMENTS IN VIGNA MUNGO". Pollution Research 42, n. 01 (2023): 38–42. http://dx.doi.org/10.53550/pr.2023.v42i01.007.

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The present studies carried out on Vigna mungo regarding impacts of SO2 exposure on photosynthetic pigments clearly revealed that sulphur dioxide has deleterious effects on different photosynthetic pigments. These effects had become more significant when the plants were exposed to higher doses of sulphur dioxide. During the present investigation four concentrations, i.e. 0.1, 0.3, 0.5 and 0.7 ppm of sulphur dioxide were taken in consideration and their impact on biochemical contents i.e chlorophyll ‘a’, chlorophyll ‘b’, total chlorophyll and carotenoids in Vigna mungo was studied. The observations obtained clearly revealed that a significant reduction was observed in photosynthetic pigments of Vigna mungo. This impact was of great extent in such plants which were exposed to 0.7 ppm of sulphur dioxide as compared to those exposed to lower concentration of sulphur dioxide. It was also observed that the impact was not only dose dependent but also age dependent.

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9

Kovacs, Marius, Lorand Toth e Lăutaru Vlad. "Time evolution of sulphur dioxide concentration generated by solid fuel combustion systems during the cold periods of the year". MATEC Web of Conferences 389 (2024): 00042. http://dx.doi.org/10.1051/matecconf/202438900042.

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About 99% of sulphur dioxide present in the atmosphere comes from anthropogenic activities, the main source being industrial activity that processes sulphur materials, including burning fuels (coal, oil or gas), thus releasing sulphur dioxide into the air. The purpose of this paper is to monitor the concentration of sulphur dioxide during two seasons, in the ambient air of Petroșani, with the aim of highlighting the possible atmospheric pollution caused by thermal power plants that use solid fuel during the winter period. The monitoring periods were distributed over a period of 6 months (three in summer and three in winter), namely the summer months (May, June, July of 2022), the winter months of December (2022), January and February of 2023. The main objective of the measurements is to identify if there is an increase in sulphur dioxide concentration in the atmosphere, resulting from the burning of solid fuels from household activities during the winter period. Results indicate that there is a higher degree of SO2 pollution in the winter period, but the recorded values are far below the limits set by national legislation. The paper presents some measures to limit sulphur dioxide pollution in the context of climate change.

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10

Zhang, Hongyu, e Yunqian Cui. "Study of Sulphides Production Affecting the Fermentation Process of the Lager Beer". International Journal of Biology and Life Sciences 3, n. 1 (20 maggio 2023): 4–8. http://dx.doi.org/10.54097/ijbls.v3i1.9481.

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In the lager brewing production process, volatile sulphides such as sulphur dioxide, hydrogen sulphide, thiols and thioesters are produced by yeast metabolism during the fermentation of lager beer. Fluctuations in malt raw materials, yeast strain characteristics and fermentation process parameter adjustments can all have an impact on sulphides, and the concentration of sulphides in finished beer can have a negative impact on the sensory tasting of lager beer. This study investigated the fermentation of sulphides in lager beer under the conditions of dissolved wort oxygen, yeast recovery, fermentation temperature and pressure, and the results showed that the longer the yeast growth time, the later the fermentation of sulphur dioxide and the lower the sulphur dioxide content in the final beer by 10mg/L. The longer the yeast recovery days, the higher the fermentation of sulphur dioxide and hydrogen sulphide. The higher the content, the higher the fermentation temperature of the lager and the faster the fermentation rate, which favours a low sulphur dioxide content at the end of the main fermentation.

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Tesi sul tema "Sulphur dioxide"

1

Fu, Man On. "Novel adsorbents for sulphur dioxide removal /". View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?EVNG%202009%20FU.

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2

Thompson, Linda Helen. "Reactions in liquid sulphur dioxide based media". Thesis, University of Nottingham, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335469.

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3

Buckenham, A. H. "Effects of sulphur dioxide on stomatal functioning". Thesis, University of Nottingham, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378436.

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4

Zaft, Paul E. "A microcomputer compensated sensor for sulphur dioxide". Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/46626.

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5

Harman, Neil F. "Aspects of the lithium-sulphur dioxide cell". Thesis, Loughborough University, 1986. https://dspace.lboro.ac.uk/2134/33142.

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An open electrolytic cell has been designed and constructed for use in a dry environment. This was used to investigate the passivation processes concerned with both the lithium and the carbon (SO2) electrodes. A.c. impedance techniques have been used in both two and three terminal cell systems in order to study the kinetics of the electrode processes. Effects of temperature, state-of-charge and reverse cell operation have been studied. Computer simulations were made of the growth of crystals on a flat (Li) surface and the resulting growth transients connecting current and time were derived. This model was extended to simulate the porous carbon (SO2) electrode and the utilisation of the carbon as a function of the depth of reaction penetration into the electrode is devised for both potentiostatic and galvanostatic discharging.

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6

Mulligan, David John. "Reduction of sulphur dioxide over transition metal sulphides". Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61916.

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7

Harrison, K. A. "The fate of sulphur dioxide in meat products". Thesis, University of Leeds, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233204.

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8

Famulari, Daniela. "Surface-atmosphere exchange of ammonia and sulphur dioxide". Thesis, University of Edinburgh, 2005. http://hdl.handle.net/1842/10883.

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Field measurements of the surface – atmosphere exchange of SO₂ and NH₃ have been made using two very different micrometeorological methods, a long term averaging method based on flux-gradient principles and an eddy covariance method, using a tunable diode laser fast response gas analysis system. The field data are then applied in surface-atmosphere models to calculate deposition of pollutant gases at the regional scale. The Time Averaged Gradient system (TAG) has been developed following a prototype implemented during a pilot study in 1998. The main goal of the TAG is to provide direct long-term average (1 to 4 weeks) flux-gradient measurements for a range of trace gas species, between atmosphere and terrestrial surfaces. Over daily periods, atmospheric conditions can range from high stability, where the vertical gradients of ambient concentration are enhanced due to very small diffusivity, to highly unstable conditions, in which concentration gradients are small due to the intense turbulent activity of the surface layer. By sampling continuously over a long-term period, the large vertical gradients generated by high stability would lead to an over-estimate of the actual flux; therefore it is necessary to avoid the bias due to these processes. To overcome this problem, the TAG system operates conditionally, sampling the micrometeorological variables within a carefully defined range of stability. A data series of five years, from 1999 to 2003, for SO₂ and a data series of two years, from 2001 to 2003 for NH₃ has been obtained at Auchencorth Moss, a field site in Southern Scotland. The measurements provided a characterisation of the chemical climate, meteorology, turbulent characteristics, as well as deposition-emission rates at the field site. A comparison with a continuous flux-gradient system running in parallel on the same field site allowed the reliability of the TAG system to be quantified: the correlation coefficients for u_* and H show a very good agreement (above 90% in both cases) between TAG protocol and continuous system suggesting the removal of stable conditions from the sampling period doesn’t modify the evaluation of the turbulent fluxes, although it introduces a bias. The SO₂ fluxes calculated omitting stable conditions under-estimate the fluxes of SO₂ measured by the continuous system by providing fluxes that are the 77% of the values estimated with the continuous system. A second TAG system has been implemented to improve estimates of gradients and reduce uncertainty on the fluxes and to increase the data coverage. It has been tested on the Easter Bush field site (Southern Scotland) measuring NH₃ fluxes form autumn 2001 to spring 2003. Field measurements of NH₃ fluxes using an eddy covariance technique were made for a total of 60 days between July and October 2002 at intensively managed grassland in Southern Scotland. The collected data demonstrate the suitability of a Tuneable Diode Laser Absorption Spectroscopy (TDLAS) system coupled with a sonic anemometer for eddy covariance measurements.

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9

Rao, Sumitrananda N. R. "Novel adsorbents using metal complexes". Thesis, Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/10200.

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Mulligan, David John. "Reduction of sulphur dioxide over supported molybdenum sulphide catalysts". Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=39497.

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The reduction of sulphur dioxide with methane using various supported molybdenum catalysts has been studied. Catalysts were prepared using either alumina or a silica-alumina support. For the alumina supported catalysts, the molybdenum loadings of 5, 10 or 15% were used. These catalysts were sulphided using 12% H$ sb2$S in argon or a mixture of SO$ sb2$ and CH$ sb4$ in argon. The 15% $ rm Mo/Al sb2O sb3$ catalyst sulphided with H$ sb2$S was at least 1.5 times as active as the other alumina supported catalysts and had the highest yields of elemental sulphur and CO$ sb2$ and was 10 times as active as the silica-alumina supported catalyst with the same molybdenum loading. The addition of cobalt to the 15% $ rm Mo/Al sb2O sb3$ catalyst decreased the activity by 20%. Alumina supported molybdenum catalysts sulphided using a mixture of 25% SO$ sb2$, 25% CH$ sb4$ and 50% Ar were more active, and had higher yields of sulphur and CO$ sb2$ than alumina itself. However, these catalysts were not as active as catalysts with a similar molybdenum loading which were sulphided using H$ sb2$S because the H$ sb2$S sulphided catalysts had a higher MoS$ sb2$ content. Kinetic experiments were carried out using the H$ sb2$S sulphided 15% Mo/$ rm Al sb2O sb3$ catalyst. A rate expression was developed at the temperatures of 600, 625, and 650$ sp circ$C. The results indicate that the reaction is methane adsorption controlled.

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Libri sul tema "Sulphur dioxide"

1

Canada. Environmental Protection Programs Directorate. Technical Services Branch. e Canada Environmental Protection Service, a cura di. Sulphur dioxide. Ottawa: The Service, 1985.

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2

Bignon, J. Y. Sulphur dioxide removal. Manchester: UMIST, 1991.

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3

Clean Air Strategic Alliance. SO₂ Management Project Team. Sulphur dioxide management in Alberta. Edmonton: Clean Air Strategic Alliance (CASA), 1997.

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4

Lofthouse, J. M. Spectroscopic determination of sulphur dioxide. Manchester: UMIST, 1993.

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5

Downer, R. M. Atmospheric oxidation of sulphur dioxide byhydrogenperoxide. Manchester: UMIST, 1994.

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6

Ontario. Ministry of the Environment, Inco Limited e Sudbury Smelter Complex, a cura di. Sulphur dioxide abatement project: Final report. Sudbury, Ont: Inco Limited, 1988.

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7

T, Holgate S., e Great Britain. Advisory Group on the Aspects of Air Pollution Episodes., a cura di. Sulphur dioxide, acid aerosols and particulates. 2^a ed. London: HMSO, 1992.

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8

WBK & Associates Inc. Sulphur dioxide: Environmental effects, fate and behaviour. [Edmonton]: Alberta Environment, 2003.

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9

Reissell, Anni. VI rikkidioksidin analyysivertailu ja III analyysimenetelmien interkalibrointi. Helsinki: Ilmatieteen laitos, Ilmanlaatuosasto, 1988.

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10

Santlal, Kenneth. Sulfur dioxide emissions inventory, 1981-1985. Boston, Mass: DAQC Information Systems, 1987.

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Capitoli di libri sul tema "Sulphur dioxide"

1

Ashar, Navin G. "Manufacture of Liquid Sulphur Dioxide". In Advances in Sulphonation Techniques, 27–33. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-22641-5_4.

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2

Crouch, Glenn, e Jim Riddle. "Sulphur Dioxide Monitoring and Reporting". In Informatik für den Umweltschutz / Computer Science for Environmental Protection, 461–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-77164-4_47.

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3

Walden, Jari, Heikki Lättilä, Mauri Hyppönen, Pekka Plathan e Timo Virtanen. "Characteristics of Sulphur Dioxide Monitors: Intercomparison". In Acidification in Finland, 135–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75450-0_7.

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4

Ashar, Navin G. "Chemical and Physical Properties of Sulphur Dioxide and Sulphur Trioxide". In Advances in Sulphonation Techniques, 9–19. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-22641-5_2.

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5

Ormrod, D. P., J. L. Deveau, O. B. Allen e D. W. Beckerson. "Crop Responses to Ozone — Sulphur Dioxide Mixtures". In Effects of Atmospheric Pollutants on Forests, Wetlands and Agricultural Ecosystems, 451–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-70874-9_33.

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6

Batič, Franc. "Bioindication of Sulphur Dioxide Pollution with Lichens". In Protocols in Lichenology, 483–503. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-642-56359-1_28.

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7

Restelli, G., e H. Stangl. "Atmospheric Chemistry of Sulphur Dioxide and Nitrogen Oxides". In Sulphur Dioxide and Nitrogen Oxides in Industrial Waste Gases: Emission, Legislation and Abatement, 23–46. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3624-2_3.

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8

Black, V. J., J. J. Colls e C. R. Black. "Ozone/Sulphur Dioxide Interactions in Temperate Arable Crops". In Interacting Stresses on Plants in a Changing Climate, 89–110. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-78533-7_5.

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9

Giannitrapani, Marco, Adrian Bowman, E. Marian Scott e Ron Smith. "Additive Models for Sulphur Dioxide Pollution in Europe". In Statistical Methods for Trend Detection and Analysis in the Environmental Sciences, 265–82. Chichester, UK: John Wiley & Sons, Ltd, 2011. http://dx.doi.org/10.1002/9781119991571.ch7.

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Meetham, A. R. "The Behavior of Sulphur Dioxide in the Atmosphere". In Atmospheric Chemistry of Chlorine and Sulfur Compounds: Proceedings of a Symposium Held at the Robert A. Taft Sanitary Engineering Center, Cincinnati, Ohio, November 4-6, 1957, 115–21. Washington D. C.: American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm003p0115.

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Atti di convegni sul tema "Sulphur dioxide"

1

Kaspar, Franz, Karl L. Kompa, Christoph Mueller e Hartmut Schroeder. "Scattering of electronically excited sulphur dioxide from graphite". In The Hague '90, 12-16 April, a cura di Lucien D. Laude. SPIE, 1990. http://dx.doi.org/10.1117/12.20616.

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Sarnela, Nina, Tuija Jokinen, Heikki Junninen, Jani Hakala, Risto Taipale, Johanna Patokoski, Maija Kajos et al. "Sulphur dioxide and sulphuric acid concentrations in the vicinity of Kilpilahti industrial area". In NUCLEATION AND ATMOSPHERIC AEROSOLS: 19th International Conference. AIP, 2013. http://dx.doi.org/10.1063/1.4803350.

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3

Sharma, Ashutosh, Zulfiqur Ali e Daniel McStay. "Indicators for the optical measurement of sulphur dioxide gas". In OE/LASE '92, a cura di Tuan Vo-Dinh. SPIE, 1992. http://dx.doi.org/10.1117/12.59348.

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4

Kricker, Jennifer, Thorarinn Gudjonsson, Ari Jon Arason, Jon Pétur Joelsson, Bryndis Valdimarsdottir, Fridrik Runar Gardarsson, Clive Page, Fredrik Lehmann e Saevar Ingthorsson. "Azithromycin prevents airway epithelial barrier dysfunction induced by sulphur dioxide inhalation". In ERS International Congress 2020 abstracts. European Respiratory Society, 2020. http://dx.doi.org/10.1183/13993003.congress-2020.4782.

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5

Zhou, Hesheng. "Primary analysis of sulphur dioxide pollution and its sources in Chengdu". In Asia-Pacific Symposium on Remote Sensing of the Atmosphere, Environment, and Space, a cura di Upendra N. Singh, Huanling Hu e Gengchen Wang. SPIE, 1998. http://dx.doi.org/10.1117/12.319515.

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Molero, F., e F. Jaque. "Tropospheric ozone, nitrogen dioxide and sulphur dioxide measurements in the ultraviolet range using the differential absorption LIDAR technique." In The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1998. http://dx.doi.org/10.1364/cleo_europe.1998.ctui81.

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A ground-based differential absorption LIDAR system has been development and using in several field tests. The system is based on the well-established configuration of a Nd:YAG laser pumping a dye laser, working in the ultraviolet spectral range with the following characteristics: Emission of 8 mJ/pulse laser radiation at the spectral range 290-310 nm (Dye: Rh 610) and 20 mJ/pulse in the range 430-460 nm (Coumarin 450), divergence ≤0,1, linewidth, 2,5 cm-1 and beam diameter of 50 mm.

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Bonnereau, Julie, Claire Weiss, France Delannoy, Matthias Linicus, Eckhard Jüngst e Paul Terrien. "Efficient Scheme for Native Carbon Dioxide Recovery from Sulphur Recovery Unit Tail Gas". In Abu Dhabi International Petroleum Exhibition & Conference. Society of Petroleum Engineers, 2017. http://dx.doi.org/10.2118/188869-ms.

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Fernandez-Saldivar, J. A., C. I. Underwood e S. Mackin. "Low-cost microsatellite UV instrument suite for monitoring ozone and volcanic sulphur dioxide". In Remote Sensing, a cura di James R. Slusser, Klaus Schäfer e Adolfo Comerón. SPIE, 2006. http://dx.doi.org/10.1117/12.689107.

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9

Gaponov, V. L., T. N. Savuskan, E. Y. Gaponova, Y. S. Matyushkin. e S. V. Gaponov. "ECOLOGICAL STATE OF THE ATMOSPHERE OF ROSTOV-ON-DON IN 2000–2018". In STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS. DSTU-PRINT, 2020. http://dx.doi.org/10.23947/interagro.2020.1.459-463.

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Abstract (sommario):

The article reduced a qualitative and quantitative composition of pollutants (suspended substances, sulphur dioxide, carbon monoxide, nitrogen dioxide, nitrogen oxide, formaldehyde, benz (a) pyrene) in the atmosphere of the city of Rostov-on-Don in 2000–2018 year. An assessment of their possible impact on human health when using this criterion is made, as the maximum permissible concentration

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10

Allan, W. D., D. Gardiner, L. Bennett, M. LaViolette, G. Pucher e M. Turingia. "Emissions Testing From the Use of Various Biodiesel Blends in Representative Canadian Army Equipment". In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-43511.

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A comprehensive series of emissions measurements were taken from two pieces of equipment used by the Canadian Forces. A field kitchen burner unit and the engine from the Light Armoured Vehicle III (LAVIII) were operated using two base fuels: low and ultra low sulphur diesel fuel blended with three different biofuels. Methylesters from canola, tallow and yellow grease were mixed in a range of volumetric proportions from 0 to 20%. Additionally, both very low sulphur diesel and aviation turbine fuel (JP-8) were tested against neat low sulphur diesel fuel. The complete chemical analysis conducted on all test fuels will not be presented here. A full range of gaseous emission measurements were obtained including oxides of nitrogen, unburnt hydrocarbons, carbon monoxide and dioxide and limited sulphur dioxide measurements. Two means of monitoring particulate matter were used with one proving to be more effective than the other. Novel techniques were used to obtain the burner unit emissions results and the AVL 8-mode test sequence was applied to the Caterpillar engine from the LAVIII. Although emission trends were detected, levels were often on the margins of perceptibility of the gas analysis system, and atmospheric conditions were challenging. Nevertheless, a methodology was developed and refined. Some correlations were made between the chemical analysis and emissions results. The testing will allow the Canadian Army to estimate its emissions footprint.

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Rapporti di organizzazioni sul tema "Sulphur dioxide"

1

Hale, D. R., e D. J. Bjornstad. Marketable permits for controlling sulphur dioxide emissions. Office of Scientific and Technical Information (OSTI), dicembre 1991. http://dx.doi.org/10.2172/10103473.

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2

Hale, D. R., e D. J. Bjornstad. Marketable permits for controlling sulphur dioxide emissions. Office of Scientific and Technical Information (OSTI), dicembre 1991. http://dx.doi.org/10.2172/6375287.

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