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. Author manuscript; available in PMC: 2019 Mar 28.
Published in final edited form as: Environ Mol Mutagen. 2017 Oct 12;59(2):144–150. doi: 10.1002/em.22142

Table II.

Air concentrations of diesel engine exhaust components among exposed workers and controls

Exposure Control (n=46) Exposed worker (n=41)
PM2.5 (mg/m3, mean±SD)
 Background adjusted 0 0.15±0.07
 Unadjusted 0.20±0.07 0.37±0.07
Elemental carbon (μg/m3, mean±SD)
 Background adjusted 0 47.0±24.0
 Unadjusted 11.1±1.3 58.1±24.0
Organic carbon (μg/m3, mean±SD)
 Background adjusted 0 69.4±27.2
 Unadjusted 68.7±4.1 138.1±27.2

Unadjusted values are original measurements. Adjusted values reflect background outdoor levels in this region.