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There is no ATSDR Toxicolooical Profile for sulfur dioxide. Therefore, no Minimal Risk Level (MRL) is available. For 1977-1979. sulfur dioxide levels measured at the air monitorina, station exceeded the Florida standard and the N'IOSH short term exposure limit.

For sulfur dioxide, the threshold for smell is about 0.3 - 1 ppm. At a level of about 0.5 ppm, sensitive individuals, such as asthmatics, may experience tightness of the chest and wheeziny from exposure to sulfur dioxide (9). Some individuals may also become sensitized to sulfur dioxide on repeated exposure (10). Most individuals, however, should not experience any adverse health effects from exposure to sulfur dioxide at the levels that have been measured. No air monitoring data is available prior to 1977. Therefore, we cannot evaluate the likely health effects that may have occurred from exposure to sulfur dioxide up to that time.


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