Sulfur Dioxide Basics - US EPA
WEBJan 31, 2024 · What 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).
Sulfur Dioxide (SO2) Pollution - US EPA
WEBSep 13, 2024 · What are sulfur dioxide standards? How are they developed and reviewed? What scientific and technical information supports reviews?
Sulfur Dioxide Basics | Sulfur Dioxide (SO2) Pollution | US EPA
WEBApr 2, 2019 · EPA’s national and regional rules to reduce emissions of SO 2 and pollutants that form sulfur oxides (SO x) will help state and local governments meet the Agency’s national air quality standards. Learn about how air quality standards help reduce SO 2.
WEBFeb 7, 2023 · Sulfur dioxide is both a primary gas-phase pollutant (when formed during fuel combustion) and a secondary pollutant (when formed as the product of atmospheric gas- or aqueous-phase oxidation of reduced sulfur compounds, called sulfides). The important gas-phase sulfur oxides in the troposphere are SO2 and sulfuric acid (H2SO4).
Sulfur Dioxide - American Lung Association
WEBWhat Is Sulfur Dioxide? Sulfur dioxide (SO 2) is a gaseous air pollutant composed of sulfur and oxygen. SO 2 forms when sulfur-containing fuel such as coal, petroleum oil, or diesel is burned.
Sulfur Dioxide | Air & Radiation - US EPA
WEBSix Common Pollutants. Sulfur Dioxide Home. This site provides information about sulfur dioxide and its effects.
Global and regional trends of atmospheric sulfur
WEBJan 30, 2019 · The profound changes in global SO 2 emissions over the last decades have affected atmospheric composition on a regional and global scale with large impact on air quality, atmospheric deposition and...
Sulfur Dioxide (SO2) Pollution - US EPA
WEBJan 18, 2017 · Sulfur 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). While all of these gases are harmful to human health and the environment, SO 2 is of greater concern.
Sulfur Dioxide Effects on Health - U.S. National Park Service
WEBJul 24, 2024 · Sulfur dioxide (SO 2) is a colorless, reactive air pollutant with a strong odor. This gas can be a threat to human health, animal health, and plant life. The main sources of sulfur dioxide emissions are from fossil …
Quantifying sulfur dioxide emissions and understanding air …
WEBMar 25, 2023 · Smoke plumes from wildfires and other biomass burning like prescribed agricultural burns add sulfur dioxide (SO2) to the atmosphere, which can transform into secondary pollutants and affect air quality, human health, and climate. The primary source of SO2 in the past has been fossil fuel combustion and industrial activities, but …