Riediker 2003 - "Exposure to Particulate Matter, Volatile Organic Compounds, and Other Air Pollutants Inside Patrol Cars"

Riediker, Michael; Williams, Ronald; et al.
"Exposure to Particulate Matter, Volatile Organic Compounds, and Other Air Pollutants Inside Patrol Cars"
Environmental Science and Technology
2003; v.37 n.10; pp.2084-2093
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The authors measured PM and VOCs in patrol cars, roadsides, and a remote (ambient) site in North Carolina. They found that BTEX levels were significantly higher in the cars; elemental carbon levels were higher in the cars; but NO2 and PM2.5 levels were a little higher in at the ambient site; and ozone levels were nearly twice as high at the ambient site.