Joshua Tree National Park last year failed to meet the Environmental Protection Agency’s ozone standards, with many of its sites charting smog levels far higher than the 75 parts per billion standard established by the federal government in 2008.
Joshua Tree National Park last year failed to meet the Environmental Protection Agency’s ozone standards, with many of its sites charting smog levels far higher than the 75 parts per billion standard established by the federal government in 2008. Rick Loomis Los Angeles Times file
Joshua Tree National Park last year failed to meet the Environmental Protection Agency’s ozone standards, with many of its sites charting smog levels far higher than the 75 parts per billion standard established by the federal government in 2008. Rick Loomis Los Angeles Times file

EPA’s stringent smog rules could suffocate economic opportunity

August 15, 2015 05:00 PM

UPDATED August 16, 2015 12:00 AM

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