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Environmentalists are raising early concerns over EPA's proposal to tighten its ozone air standard from the existing 75 parts per billion (ppb) limit down to within a 65-70 ppb range, saying there is a need for a stricter limit while also faulting EPA for not creating a distinct “secondary” ozone air standard in order to protect the environment.

Environmentalists are fighting opposition from EPA and power industry groups to their request to transfer litigation over the agency's Clean Water Act cooling water intake rule from the U.S. Court of Appeals for the 4th Circuit to the 2nd Circuit, saying prior 2nd Circuit rulings on the policy require the case to be heard by that court.

EPA is extending by 45 days the comment period on its proposed Significant New Use Rule (SNUR) for nonylphenols and nonylphenol ethoxylates (NPs and NPEs), chemicals once used widely in detergents that can pollute water, responding in part to industry concerns over how EPA will identify which chemicals will fall under the rule.

Agency science advisors appear to be backing key aspects of EPA's efforts to assess the human health risks of exposure to ethylene oxide (EtO), with some panelists pressing the agency to finalize the long-running assessment, while also casting aside several industry complaints about the latest draft assessment.

As the deadline to submit comments on EPA's proposed greenhouse gas (GHG) standards for existing power plants draws near, stakeholders are expected to issue reams of formal comments on a range of issues, including legal concerns, the stringency of state targets and compliance deadlines.

An expert panel convened by the wastewater industry has identified several research gaps in the knowledge of how long the Ebola virus can survive in human waste and wastewater systems, although pending federal guidance for wastewater treatment plant workers is expected to recommend procedures similar to those used for protection against other types of viruses.