<https://www.alleghenyfront.org/allegheny-county-grapples-with-meeting-air-quality-standards/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/WebPage>
<https://www.alleghenyfront.org/allegheny-county-grapples-with-meeting-air-quality-standards/>