On June 21, EPA announced a proposal for a revised national standard for ozone exposure. The proposal, mandated by court order, proposes a range from which EPA will pick its final standard.
Any limit picked from within the proposed range will fall short of what is needed to protect the public health. EPA's proposed range is 0.070 to 0.075 parts per million, but in recent months scientific consensus has emerged in supporting a limit no greater than 0.070 ppm and ideally closer to 0.060 ppm.
EPA has already caught a lot of flack for skirting a real decision and proposing limits weaker than scientists have recommended. But the role of the White House should be scrutinized as well.