Unburned gas makes up as much as 10% of U.S. petroleum-based emissions, University of Michigan researchers claim in journal Science, as Europe probes methane leaks from Russia's Nord Stream gas pipelines that could be sabotage.
The U.S. Environmental Protection Agency on Sept. 8 said it plans to set effluent limitations guidelines and pretreatment standards for industrial facilities that manufacture per- and polyfluoroalkyl substances (PFAS), as well as chromium electroplating facilities, which use PFAS in their processes.
Contractor hires follow state court's green light despite governor's opposition; sector analyst warns of oil-price drop impact on planned natural gas pipe construction.
The Feb. 20 proposal calls for establishing maximum contaminant levels for perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA). EPA also proposed regulating imported products that contain certain long-chain PFAS chemicals that are used as surface coatings.
