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For years ozone levels monitored by the New Mexico Environment Department and the U.S. Environmental Protection Agency in the Permian Basin have exceeded national standards. EPA told state an ozone nonattainment zone was imminent for the Permian Basin, which would have brought over oversight of oilfield operations. Now that may not happen with the election of Donald Trump.

The Environmental Protection Agency is finalizing stricter limits on ground-level ozone, which the agency says is harmful to human health. That has some…