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Sulfur dioxide is an intermediate in the production of sulfuric acid, being converted to sulfur trioxide, and then to oleum, which is made into sulfuric acid. Sulfur dioxide for this purpose is made when sulfur combines with oxygen. The method of converting sulfur dioxide to sulfuric acid is called the contact process. Several million tons are ...
The Acid Rain Retirement Fund (A.R.R.F) is an all-volunteer, non-profit environmental educational organization, incorporated in Maine, dedicated to reducing pollution by purchasing and "retiring" marketable sulfur dioxide emissions allowances issued by the U.S. Environmental Protection Agency’s Acid Rain Program. A.R.R.F. was created in 1995 ...
The National Emissions Inventory in the U.S. [24] and the Air Pollutant Emission Inventory (APEI) in Canada [3] [10] [25] compile annual emissions of air pollutants that contribute to smog, acid rain, greenhouse gases and diminished air quality including particulate matter (PM), sulphur oxides (SO x), nitrogen oxides (NO x), cadmium, lead, mercury, and persistent organic pollutants (POPs) such ...
This index, reported by the Environmental Protection Department, is measured on a scale of 1 to 10+ and considers four air pollutants: ozone; nitrogen dioxide; sulfur dioxide and particulate matter (including PM10 and PM2.5). For any given hour the AQHI is calculated from the sum of the percentage excess risk of daily hospital admissions ...
Sulfur dioxide: Sulfur dioxide is produces by combustion of fossil fuels.Inhaling sulfur dioxide is associated with increased respiratory symptoms and disease, difficulty in breathing, and premature death. Particulates: There are two types of particles, Coarse Particles and Ultrafine Particles. Human activities, such as the burning of fossil ...
The most common sources of air pollution include particulates and ozone (often from burning fossil fuels), [122] nitrogen dioxide, and sulfur dioxide. Children aged less than five years who live in developing countries are the most vulnerable population to death attributable to indoor and outdoor air pollution.
Yokkaichi asthma (四日市ぜんそく, Yokkaichi zensoku) refers to cases of chronic obstructive pulmonary disease, chronic bronchitis, pulmonary emphysema, and bronchial asthma in humans and various environmental changes usually attributed to sulfur dioxide (SO 2) emissions which appeared as smog over the city of Yokkaichi in Mie Prefecture, Japan between 1960 and 1972, though other SO x ...
The effect of major volcanic eruptions on sulfate aerosol concentrations and chemical reactions in the atmosphere. Major volcanic eruptions have an overwhelming effect on sulfate aerosol concentrations in the years when they occur: eruptions ranking 4 or greater on the Volcanic Explosivity Index inject SO 2 and water vapor directly into the stratosphere, where they react to create sulfate ...