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Sulfur Dioxide Air Quality Standard

By Kristin Watt

Today the USEPA published its revised primary ambient air quality rule (75 FR 35520) for sulfur dioxide.  A new 1-hour standard was set at a level of 75 parts per billion, based on the 3-year average of the 99th percentile of 1-hour daily maximum concentrations.  The previously existing 24-hour and annual primary standards were revoked. 

Tags: Environment

Helping clients with their energy and environmental needs

You can expect to find news and breaking legal developments involving the crude oil and natural gas industries, alternative and renewable energy resources, and the latest environmental issues.