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sulfur dioxide
Introduction References & Edit History Quick Facts & Related Topics
Images & Videos
Weathered statue with a damaged face and surface, showing significant erosion from acid rain and pollution.
New York City skyline tinted orange from wildfire smoke.
Two pie charts compare sources of sulfur dioxide and nitrogen oxides emissions contributing to acid rain. The first chart shows electric utilities produce 66% of SO2, other sources 29%, and vehicles 5%. The second chart shows vehicles produce 58% of NOx, other sources 24%, and electric utilities 18%.

sulfur dioxide: References & Edit History

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  • The Editors of Encyclopaedia Britannica
    Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.

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Article History

Type Description Contributor Date
Modified link of Web site: National Center for Biotechnology Information - PubMed Central - Sulfur Dioxide: An Emerging Signaling Molecule in Plants. Oct 16, 2026
Add new Web site: CellPress - Heliyon - Environmental health risk assessment of sulfur dioxide (SO 2 ) at workers around in combined cycle power plant (CCPP) (PDF). Dec 19, 2025
Add new Web site: USDA - Agricultural Marketing Service -Sulfur dioxide (PDF). Aug 22, 2025
Add new Web site: RSC Publishing - Visible-light-driven reactions for the synthesis of sulfur dioxide-inserted compounds: generation of S–F, S–O, and S–N bonds. Jul 11, 2025
Add new Web site: CiteSeerX - Thermal fixation of sulfur dioxide (PDF). Mar 21, 2025
Add new Web site: CAMEO Chemicals - Sulfur Dioxide. Jun 29, 2024
Media added. May 16, 2024
Added information about sulfur dioxide as an air pollutant. Apr 25, 2024
Add new Web site: Australian Government - Department of Climate Change, Energy, the Environment and Water - Sulfur dioxide. Apr 05, 2024
Add new Web site: National Park Service - Sulfur Dioxide Effects on Health. Jan 08, 2024
Add new Web site: Wisconsin Department of Health Services - Sulfur Dioxide. Nov 10, 2023
Add new Web site: Frontiers - Frontiers in Plant Science - Sulfur Dioxide: An Emerging Signaling Molecule in Plants. Aug 22, 2023
Add new Web site: U.S. Environmental Protection Agency - Sulfur Dioxide (SO2) Pollution. Jul 13, 2023
Add new Web site: National Center for Biotechnology Information - PubMed Central - Sulfur Dioxide: An Emerging Signaling Molecule in Plants. May 05, 2023
Add new Web site: National Center of Biotechnology Information - PubChem - Sulfur dioxide. Sep 26, 2022
Add new Web site: American Lung Association - Sulfur Dioxide. Mar 16, 2022
Add new Web site: Queensland Government - Environment, Land and Water - Sulfur dioxide. Dec 06, 2020
Add new Web site: Ministry for the Environment, New Zealand - Sulphur dioxide. Dec 06, 2020
Corrected display issue. Jan 04, 2019
Add new Web site: LiveScience - Facts About Sulfur. Dec 12, 2016
Add new Web site: Tox Town - Sulfur Dioxide. Dec 28, 2012
Add new Web site: Wisconsin Department of Health Services - Sulfur Dioxide. Dec 14, 2012
Add new Web site: Canadian Centre For Occupational Health And Safety - Basic Information on Sulfur Dioxide. Dec 14, 2012
Add new Web site: CDC - Agency for Toxic Substances and Disease Registry - Sulfur Dioxide. Dec 14, 2012
Added new Web site: Australian Government - Department of the Environment and Water Resources - Sulfur dioxide. Jun 11, 2009
New article added. Apr 28, 2009
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