Dobson Units, Middle Troposphere as measured by the NOAA Suomi NPP Satellite after Volcan De Fuego Erupted June 3, 2018

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Sulfer Dioxide irritates the nose, throat, and airways to cause coughing, wheezing, shortness of breath, or a tight feeling around the chest. The effects of sulfur dioxide are felt very quickly and most people would feel the worst symptoms in 10 or 15 minutes after breathing it in.