EPA Science Advisers Seek Distinct, Tougher ‘Secondary’ Ozone Standard

September 12, 2022
Members of EPA’s Clean Air Scientific Advisory Committee (CASAC) special panel on ozone standards appear ready to urge the agency to adopt for the first time a tougher “secondary” ozone limit to protect the environment, distinct from the “primary” limit designed to protect public health, even as agency staff opposes such a development. On a virtual conference call Sept. 12, several members of the special panel outlined their “strong consensus” in favor of using a distinct “form” for the secondary...

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