This is an Operating Certificate for the Hercules Cement Company in Stockertown, issued in 1959 by Lehigh Valley Air Pollution Control and signed by one R. Emmet Doherty. Since 1970, the R. Emmet Doherty Clean Air Award has been presented to a regional air quality leaders in recognition of their service and of Doherty’s considerable legacy. Maybe you’ve never heard of him, but not everyone has their own award or their own page on the Pennsylvania Department of Environmental Protection’s website.
Keith Williams, the chairperson of the Lehigh Valley Air Quality Partnership, sent me these images. It’s something special to see documentation from the early era of air quality control, signed by one of the issue’s most respected pioneers. Click to enlarge.
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