Nina Randazzo

Urban Carbon Monoxide (CO) during the Global Economic Recession

• Motivation: To determine whether a CO trend related to economic activity could be observed.

• Examined July monthly averages from 2005 to 2012 for 10 urban areas.

• Decrease going into 2008 or 2009 (worst years of the Recession).

• Often another decrease into 2011.

• Generally, rebound in 2012

Figure 1: AQS shows a sharp decrease in 2007 and 2008; Rebound in 2012

Figure 2

Figure 3