Appendix F: Pittsburgh Region Carbon Monoxide Emissions

(by Source Category for the Pittsburgh Region, 1999)

 

 

 

Source: http://www.epa.gov/air/data/reports.html.  Counties included are those in the Southwestern Pennsylvania Commissionís regional definition: Allegheny, Armstrong, Beaver, Butler, Fayette, Greene, Indiana, Lawrence, Washington, and Westmoreland.