PITTSBURGH, Sept. 2, 2015 /PRNewswire-USNewswire/ -- The National Black Chamber of Commerce, the African American Chamber of Commerce of Western Pennsylvania and the U.S. Chamber of Commerce today welcomed Pennsylvania community and business leaders to a public symposium discussing the potential employment and economic impacts of the Environmental Protection Agency's (EPA) proposed ground-level ozone rule. This forum comes on the heels of EPA's announcement that Pittsburgh and Philadelphia failed to meet the 2008 ozone standard by the July 2015 deadline, but qualify for a one-year extension.  Read More