Environmentalists threaten suit over missed SO2 deadlines

The Center for Biological Diversity (CBD) and Sierra Club are threatening to sue EPA over its failure to ensure that adequate state plans are in place to meet the agency’s air quality standards for sulfur dioxide (SO2), after states and EPA missed a series of deadlines for submission and approval of plans. In a Dec. 20 notice of intent to sue , which EPA posted on its website Jan. 16, the groups gave EPA 60 days’ notice of their threatened...