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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 emissions for volcanic eruptions worldwide.

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  • Sulfur Dioxide (SO2) Primary Air Quality Standards

    Sulfur Dioxide (SO2) Primary Air Quality Standards The Clean Air Act requires EPA to set national ambient air quality standards (NAAQS) for sulfur dioxide and five other pollutants considered harmful to public health and the environment (the other pollutants are ozone, particulate matter, nitrogen dioxide, carbon monoxide, and lead).

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  • Sulfur Dioxide Basics | Sulfur Dioxide (SO2) Pollution

    Apr 02, 2019What is SO 2? EPA’s national ambient air quality standards for SO 2 are designed to protect against exposure to the entire group of sulfur oxides (SO x). SO 2 is the component of greatest concern and is used as the indicator for the larger group of gaseous sulfur oxides (SO x).

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  • Sulfur Dioxide (SO2) Pollution | US EPA

    Mar 07, 2016Sulfur Dioxide (SO2) Pollution SO 2 results from the burning of either sulfur or materials containing sulfur. Sulfur Dioxide (SO 2) is one of a group of gases called sulfur oxides (SO x). The

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  • Sulfur Dioxide - Gasp

    What is SO2? Sulfur dioxide (SO2) belongs to the family of sulfur oxide gases (SOx). It is one of the EPA’s six criteria air pollutants regulated under the Clean Air Act’s National Ambient Air Quality Standards, or NAAQS.

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  • Sulfur Dioxide (SO2) - Utah Department of Environmental

    Jun 11, 2019On June 2, 2010, EPA strengthened the primary National Ambient Air Quality Standard (NAAQS) for SO2 by establishing a new 1-hour standard designed to protect sensitive individuals from high, short-term (5-minutes to 24-hours) exposure. The level is set at 75 parts per billion (ppb).

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  • Air Quality Designations for Sulfur Dioxide | US EPA

    Air Quality Designations for Sulfur Dioxide 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

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  • Sulfur dioxide NAAQS implementation | Wisconsin DNR

    The U.S. Environmental Protection Agency (EPA) sets National Ambient Air Quality Standards (NAAQS) for criteria pollutants, including sulfur dioxide (SO2). On June 2, 2010, EPA revised the SO2 standard, establishing a one-hour primary standard of 75 ppb. The EPA is completing area designations for this NAAQS in four rounds.

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  • Sulfur dioxide (SO2) | Minnesota Pollution Control Agency

    Sulfur dioxide (SO2) Sulfur dioxide (SO2), a colorless, bad-smelling, toxic gas, is part of a larger group of chemicals referred to as sulfur oxides (SOx). These gases, especially SO2, are emitted by the burning of fossil fuels — coal, oil, and diesel — or other materials that contain sulfur.

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  • Guide to SO2 Management and SO2 Calculator | MoreWine

    Sulfur Dioxide, or SO2, is a chemical compound used by winemakers to help keep their wine protected from the negative effects of oxygen exposure as well as spoilage microorganisms. Sulfur Dioxide is known by a variety of different names to winemakers, the most common being “SO2 ”, “Metabisulfite”, and just plain “Sulfite.”

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  • Global Sulfur Dioxide Monitoring Home Page

    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 emissions for volcanic eruptions worldwide.

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  • "Sulfur dioxide, SO2 gase exposure effects limits

    Sulfur Dioxide Gas Exposure Hazards Effects For sulfur dioxide (SO 2)the TLV had been 5.0 ppm for many years, but in 1978 ACGIH announced its intention

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  • Sulphur Dioxide (SO2) | AQI India

    Sulphur dioxide is a colourless gas with a strong, pungent smell. It dissolves very easily in water. This gas can be dissolved in the environment through air and water both which could be converted into sulphuric acid while in the air and sulphuric dioxide while in water.

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  • Hawai‘i Volcanoes National Park

    Air quality at Kīlauea is affected by volcanic sulfur dioxide gas (SO 2) and particulate matter (PM 2.5). Unhealthy levels of these pollutants can occur within the park. People with pre-existing respiratory conditions are especially sensitive to poor air quality.

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  • About Air Data Reports | Air Data: Air Quality Data

    # Days SO2 # Days PM2.5 # Days PM10 A daily index value is calculated for each air pollutant measured. The highest of those index values is the AQI value, and the pollutant responsible for the highest index value is the "Main Pollutant." The Air Quality Statistics Report displays air pollution values related to national standards for air

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  • IDEM OAQ: Sulfur Dioxide (SO2) Air Quality Attainment

    Sulfur Dioxide (SO2) Air Quality Attainment/Nonattainment Designations All National Ambient Air Quality Standards (NAAQS) undergo periodic review and may be revised to reflect the latest health, environmental and technological advances.

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  • Status of Louisiana Designated Areas | SIP Status Reports

    The level of the 1-hour NAAQS for sulfur dioxide is 75 parts per billion (ppb) calculated as the 3-year average of the 99th percentile of the annual distribution of daily maximum 1-hour average concentrations.

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  • Table of Historical SO2 NAAQS | Sulfur Dioxide NAAQS | US EPA

    History of the National Ambient Air Quality Standards for Oxides of Sulfur During the Period 1971-2012 (1) SO 2 = sulfur dioxide (2) Units of measure are in parts per million (ppm) and parts per billion (ppb).

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  • Criteria Air Pollutants | Mass.gov

    Sulfur Dioxide Sulfur dioxide (SO2) is a colorless, reactive gas that is produced when power plants, industrial boilers, and other facilities burn sulfur-containing fuels such as coal and oil. Generally, air concentrations of sulfur dioxide are highest near large industrial complexes.

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  • SO2 Sensors

    SO2 Sensors for Air Quality Applications. Digital Gas Sensor Developer Kit: Digital SDK. Digital SDK Easily add any SPEC Sensor to your design with our Digital Gas Sensor Developer Kit. $ 350.00 Add to cart Digital Gas Sensor Module for Sulfur Dioxide: DGS-SO2

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  • Air pollutants and standards | Wisconsin DNR

    The first SO2 air quality standards were set in 1971, including a 24-hour average primary standard at 140 ppb, an annual average primary health standard at 30 ppb and a three-hour, secondary public welfare standard of 500 ppb. Recent changes. In 2010, the EPA revised the SO2 standard by establishing a new one-hour average primary standard at 75

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  • Bureau of Evaluation and Planning

    Since then, the local air quality monitor in Warren County measured sulfur dioxide levels significantly below the 75 ppb 1-hour sulfur dioxide NAAQS. On December 20, 2017, the USEPA designated the entire state of New Jersey as unclassifiable/attainment for the 2010 1-hour standard for SO2.

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  • Air Pollution from Sulfur Dioxide - Texas Commission on

    Air Quality Characterization Plan for Areas with Identified SO 2 Sources. The DRR requires air agencies to notify the EPA by July 1, 2016 of the air quality characterization method planned to evaluate areas where identified sources are located. Air agencies were also required to submit revised monitoring network plans and modeling protocols to

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  • Kīlauea Eruption Poses Air Quality Hazard With Increased

    Kīlauea Eruption Poses Air Quality Hazard With Increased Vog and SO2 Levels. December 22, 2020, 1:39 PM HST * Updated December 22, 1:48 PM. A. A. A.

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  • NJDEP-Air Quality Management

    The air contaminants reported in the emission statements include Carbon Monoxide (CO), Sulfur Dioxide (SO2), Ammonia (NH3), Particulate Matter (TSP, PM10, PM2.5), Lead (Pb), Volatile Organic Compounds (VOC), Oxides of Nitrogen (NOx), Carbon Dioxide (CO2), Methane (CH4) and 36 toxic air pollutants.

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  • Kitimat SO2 Alert Pilot Project - Province of British Columbia

    In 2018, the BC Ministry of Environment and Climate Change Strategy (“the Ministry”) began implementing a pilot project to alert the Kitimat public of periods when sulphur dioxide (SO2) levels are elevated. The Ministry is now testing a second approach to receive such information, through an updated Air Quality Health Index (AQHI) that includes SO2 concentrations.

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  • SO2, Maps, Air Quality Analysis | Pacific Southwest | US EPA

    Native American Tribal Lands and Reservations - SO2 Maps

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  • Review of the Primary National Ambient Air Quality

    Feb 16, 2017quality criteria and the primary (health-based) national ambient air quality standard (NAAQS) for sulfur oxides as described in the 2014 Integrated Review Plan for the Primary National Ambient Air Quality Standard for Sulfur Dioxide. Based on analysis of the information available

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