نتایج جستجو برای: sulphur dioxide

تعداد نتایج: 100574  

2015
Shoaib Mehmood Bale V. Reddy Marc A. Rosen

The emissions of carbon dioxide and nitrogen and sulphur oxides for electricity generation with coal and biomass co-firing are investigated and the furnace gas temperature assessed. The study uses simulation and considers fuel combinations based on two coals (bituminous coal, lignite) and four types of biomass (rice husk, sawdust, chicken litter, refused derived fuel). With increasing biomass, ...

2016
Nina Sarnela Mikko Sipilä Tuija Jokinen Heikki Junninen

In atmospheric conditions the oxidation of sulphur dioxide to sulphuric acid in gas phase has been considered to be determined by the concentration of hydroxyl radical. Recently the significance of stabilized Criegee intermediate as an oxidizer of sulphuric acid has been brought out. In this study we investigated the oxidation of sulphur dioxide in the CLOUD chamber in conditions where the hydr...

2008
Katsumi YOSHIDA Hidehiko OSHIMA Masayuki IMAI

In Yokkaichi-city, where power stations, oil refining and related chemical plants exist, growing number of cases of asthmatic patients has been reported since these plants were put in operation in 1955. At Isozu, where air pollution is most severe, incidence of asthma reached up to 2.5% of total population in 1964. In whole Yokkaichi-city, annual average of sulphur dioxide level by lead peroxid...

2012
Arnaud Chevalier Eleftherios Giovanis

This study explores the relationship between happiness and air pollution in Britain using data from the British Household Panel Survey (BHPS). The effects of air pollution on individuals’ happiness are estimated and their monetary value is calculated. In particular, three air pollutants are examined in this paper; the sulphur dioxide (SO2), the ground-level ozone (O3) and the nitrogen dioxides ...

Journal: :Journal of epidemiology and community health 2003
M Lin Y Chen R T Burnett P J Villeneuve D Krewski

STUDY OBJECTIVE Assess associations between short-term exposure to gaseous pollutants and asthma hospitalisation among boys and girls 6 to12 years of age. DESIGN A bi-directional case-crossover analysis was used. Conditional logistic regression models were fitted to the data for boys and girls separately. Exposures averaged over periods ranging from one to seven days were used to assess the e...

1956
L. Sebastiani

Human activities have increased the number of environmental constraints for olive plants. Water, soil and air pollution are rapidly becoming important environmental concerns for plant growth and productivity. In addition to pollution problems, modifications in gaseous composition of the atmosphere, as well as terrestrial solar radiation changes associated with pollution, are the new factors stu...

Journal: :Transactions of the Faraday Society 1912

2002

Once the acidic gases have been emitted to the atmosphere they can be transported over large distances. Hydrogen chloride is highly soluble and is deposited close to source areas, whereas sulphur dioxide and nitrogen oxides are relatively insoluble (at atmospheric concentrations) and are therefore usually transported much further from the source before being deposited. For example, around 90% o...

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