sulfur dioxide

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  • noun

Synonyms for sulfur dioxide

a colorless toxic gas (SO2) that occurs in the gases from volcanoes

References in periodicals archive ?
First, the law was mandatory and it set concrete goals for the reduction of total sulfur-dioxide emissions over time.
In addition to capping sulfur-dioxide emissions, Bush would add caps for nitrogen oxide and mercury, and those caps would decline over time.
For example, she said, a California plan had nitrogen and sulfur-dioxide caps set so high that it achieved almost no results until the 2000 energy crisis, at which points credits suddenly became so expensive that regulators exempted utilities from the program in order to keep the lights on.