Recently hydrogen sulfide levels have been a problem again for some areas of San Tan Valley.
Last week alone there were 32 instances of hydrogen sulfide readings that exceeded Pinal County Air Quality standards.
Are low levels of Hydrogen Sulfide Dangerous?
Though the levels Pinal County Air Quality has reported are below 1.0 – the Federal Register research claims that the “EPA has determined that hydrogen sulfide can reasonably be anticipated to cause serious or irreversible chronic human health effects at relatively low doses and thus is considered to have moderately high to high chronic toxicity.”
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