sulfur dioxide information

Sulfur dioxide in the air results primarily from activities associated with the burning of fossil fuels (coal, oil) such as at power plants or from copper smelting. In nature, sulfur dioxide can be released to the air, for example, from volcanic eruptions. Chapters 3 and 4 contain further information.

Sulfur Dioxide Section 6. Accidental release measures Immediately contact emergency personnel. Stop leak if without risk. Note: see Section 1 for emergency contact information and Section 13 for waste disposal.

Sulfur dioxide is a colorless gas with a pungent odor. It is a liquid when under pressure, and it dissolves in water very easily. Sulfur dioxide in the air comes mainly from …

Announcements. June 30, 2021 - EPA redesignates areas in Texas and Nebraska. After EPA sets a new National Ambient Air Quality Standard (NAAQS) or revises an existing standard, the Clean Air Act requires the agency to designate areas in the United States as "attainment" (meeting), "nonattainment" (not meeting) or "unclassifiable ...

SO 2 emissions that lead to high concentrations of SO 2 in the air generally also lead to the formation of other sulfur oxides (SO x ). SO x can react with other compounds in the atmosphere to form small particles. These particles contribute to particulate matter (PM) pollution: particles may penetrate deeply into sensitive parts of …

The OMI/TOMS Sulfur Dioxide Group uses Ozone Monitoring Instrument (OMI) and Total Ozone Mapping Spectrometer (TOMS) data to measure and map volcanic sulfur dioxide and ash …

Sulfur dioxide (SO2) is a non-inflammable colorless gas. SO2 is usually oxidized by ozone and hydrogen peroxide to form sulfur trioxide, a secondary pollutant …

The Acid Rain Program (ARP), established under Title IV -Acid Deposition Control (pdf) (156.3 KB) requires major emission reductions of sulfur dioxide (SO 2) and nitrogen oxides (NO x ), the primary precursors of acid rain, from the power sector. The SO 2 program sets a permanent cap on the total amount of SO 2 that may be emitted by …

At room temperature, sulfur dioxide is a nonflammable, colorless gas with a very strong, pungent odor. Most people can smell sulfur dioxide at levels of 0.3 to 1 ppm. It is handled and transported as a liquefied compressed gas. It easily dissolves in water. The liquid is heavier than water. Although sulfur dioxide does not burn in air, cylinders of …

SO 2 emissions that lead to high concentrations of SO 2 in the air generally also lead to the formation of other sulfur oxides (SO x ). SO x can react with other compounds in the atmosphere to form small particles. These particles contribute to particulate matter (PM) pollution. Small particles may penetrate deeply into the lungs …

For more information, contact: Agency for Toxic Substances and Disease Registry. Office of Innovation and Analytics, Toxicology Section. 4770 Buford Highway. Chamblee, GA 30341-3717. Phone: 1-800-CDC-INFO 888-232-6348 (TTY) Email: Contact CDC-INFO. ATSDR can also tell you the location of occupational and environmental health clinics.

Chemical Formula: The chemical formula for sulfur dioxide is SO 2, indicating it comprises one sulfur atom and two oxygen atoms. Physical State: At room temperature, sulfur dioxide exists as a colorless gas. It can be converted to a liquid under pressure or low temperatures. Smell and Taste: Sulfur dioxide has a pungent, irritating odor akin to ...

Use this method when sampling for both hydrogen sulfide and sulfur dioxide. Sulfur trioxide and gaseous elemental sulfur can cause a positive interference. The sampling pump must be capable of maintaining a constant flow of 0.5 L/min with a back pressure of approximately 20 inches of water. * All sampling instructions above are …

Sulfur dioxide is a colorless gas with a pungent odor. It is a liquid when under pressure, and it dissolves in water very easily. Sulfur dioxide in the air comes mainly from activities such as the burning of coal and oil at power plants or from copper smelting. In nature, sulfur dioxide can be released to the air from volcanic eruptions.

Step 1. One step in the production of sulfuric acid is the oxidation of sulfur dioxide with nitrogen dioxide at high temperature (1200.∘C) : SO2(g)+NO2(g)⇌SO3(g)+ NO(g) Note: Reference the Fundamental constants and Thermodynamic properties of pure substances tables for additional information. Part: 0 / 3 Part 1 of 3 Calculate the ...

Sulfur dioxide is a colorless gas with a pungent odor. It is a liquid when under pressure, and it dissolves in water very easily. Sulfur dioxide in the air comes mainly from activities such as the burning of coal and oil at power plants or from copper smelting. In nature, sulfur dioxide can be released to the air from volcanic eruptions.

Sulfur Dioxide. Sulfur dioxide, with chemical formula SO 2, is a colorless gas with an irritating, choking odor.Normally a gas, sulfur dioxide has a density of 2.551 g/L and a solubility in water of 9.4 g per 100 mL (at 25 ° C). It has a melting point of − 98.3 ° F (− 72.4 ° C) and a boiling point of 14 ° F (− 10 ° C).. Sulfur dioxide is produced …

ATSDR Sulfur Dioxide ToxFAQs. SULFUR DIOXIDE. CAS # . Agency for Toxic Substances and Disease Registry ToxFAQs June 1999 This fact sheet answers the most frequently asked health questions (FAQs) about sulfur dioxide. For more information, call the ATSDR Information Center at 1-888-422-8737. This fact sheet is …

Sulfur dioxide, inorganic compound, a heavy, colorless, poisonous gas. It is produced in huge quantities in intermediate steps of sulfuric acid manufacture. It occurs in nature in volcanic gases and in solution in the waters of some warm springs. …

Sulfur dioxide. Sulfur dioxide (SO2), a foul-smelling toxic gas, is part of a larger group of chemicals called sulfur oxides. These gases, especially SO2, are emitted by the burning of fossil fuels or other materials that contain sulfur. Sulfur dioxide can damage trees and plants, inhibit plant growth, and damage sensitive ecosystems and waterways.

Overview. CAS No. . Sulfur dioxide (SO₂) is a colorless gas with a characteristic, irritating, pungent odor. Exposure to sulfur dioxide may cause irritation to the eyes, …

Sulphur dioxide is widely used in the food and drinks industries for its properties as a preservative and antioxidant. Whilst harmless to healthy persons when used in recommended concentrations, it can induce asthma when inhaled or ingested by sensitive subjects, even in high dilution. About one in nine asthmatics gives a history of asthma ...

Product name : Sulfur dioxide solution, 0.5 M in THF Product Number : 901592 Brand : Aldrich 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratory chemicals, Synthesis of substances Uses advised against : The product is being supplied under the TSCA R&D Exemption

Sulfur dioxide, SO2, is a colorless gas or liquid with a strong, choking odor. It is produced from the burning of fossil fuels (coal and oil) and the smelting of mineral ores (aluminum, copper, zinc, lead, and iron) that contain sulfur. Sulfur dioxide dissolves easily in water to form sulfuric acid. Sulfuric acid is a major component of acid rain.

Air Quality Standard. (SO2) 0.25 ppm. 0.04 ppm. None. What is sulfur dioxide (SO2)? Sulfur dioxide (SO2) is comprised of one atom of sulfur and two atoms of oxygen, and is a gas at ambient temperatures. It has a pungent, irritating odor. SO2 is a member of a family of chemicals comprised of sulfur and oxygen that are collectively known as ...

Formula: O 2 S. Molecular weight: 64.064. IUPAC Standard InChI: InChI=1S/O2S/c1-3-2. Copy Sheet of paper on top of another sheet. IUPAC Standard InChIKey: RAHZWNYVWXNFOC-UHFFFAOYSA-N. Copy Sheet of paper on top of another sheet. CAS Registry Number: . Chemical structure: This structure is also available as …

Sulphur Dioxide (SO2) - Sulphur dioxide is an inorganic compound, a heavy, colourless, poisonous gas exists in the Earth's atmosphere in a very small concentration at about 1 ppm. Sulfur dioxide is used as a preservative especially in winemaking ever since the ancient Romans.

Sulfur dioxide. Colorless gas with a characteristic, irritating, pungent odor. [Note: A liquid below 14°F. Shipped as a liquefied compressed gas.] Powdered alkali metals (such as sodium & potassium), water, ammonia, zinc, aluminum, brass, copper [Note: Reacts with water to form sulfurous acid (H 2 SO 3 ).] NIOSH.

Sulfur dioxide (SO 2) is a pungent, toxic gas that is the primary product of burning elemental sulfur. It exists widely in nature, mostly from volcanic activity and …

Last updated on January 31, 2024. Sulfur dioxide (SO2) is one of a group of highly reactive gasses known as "oxides of sulfur," and are emitted into the air as result of fossil fuel …

Healthy nonasthmatics respond to higher concentrations of sulfur dioxide (≥1.0 ppm). Factors that can exacerbate the respiratory effects of sulfur dioxide include exercise and breathing of dry or cold air. Animal data …

Sulfur Dioxide | SO2 or O2S | CID 1119 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, …

Other names: Sulfurous acid anhydride; Fermenicide powder; Fermenticide liquid; Sulfur oxide (SO2); Sulfurous anhydride; Sulfurous oxide; SO2; Sulphur dioxide; Fermenicide liquid; Schwefeldioxyd; Siarki dwutlenek; Sulfur oxide; UN 1079; Sulfur dioxide (SO2); Sulfur superoxide Permanent link for this species. Use this link for bookmarking this ...

The Issue. Sulfur dioxide (SO 2) is one of a group of reactive gases known as "sulfur oxides."Emissions of SO 2 declined by approximately 79% between 1990 and 2014 subsequent to several U.S. air quality regulatory programs. Coal-fired power plants remain the dominant anthropogenic anthropogenicMade by people or resulting from …

sulfur monoxide. sulfur oxide, any of several compounds of sulfur and oxygen, the most important of which are sulfur dioxide (SO 2) and sulfur trioxide (SO 3 ), both of which are manufactured in huge quantities in intermediate steps of sulfuric acid manufacture. The dioxide is the acid anhydride (a compound that combines with water to form an ...

Acid rain describes any form of precipitation that contains high levels of nitric and sulfuric acids. It can also occur in the form of snow, fog, and tiny bits of dry material that settle to Earth ...

Analytical Methods for Determining Sulfur Dioxide in Environmental Samples. NIOSH recommends ion chromatography (Method 6004) for the determination of sulfur dioxide in ambient air ( NIOSH 1994a ). Method 6004 is specific for sulfur dioxide and is applicable to STEL samples; the working range is 0.5-20 mg/m 3 (0.2-8 ppm) for a 100-L air sample ...

Interscan's GasD 8000 Series Portable Gas Analyzers for sulfur dioxide can measure three emission ranges of 0-20 ppm, 0-2000 ppb, and 0-50 ppm at resolutions of 0.01 ppm, 1 ppb, and 0.1 ppm, respectively. Several oil and gas companies have still not complied with measures to control pollutants, including SO2.