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Table 1 Geometric means (and geometric standard deviations) of PAH measures in personal air samples (ng/m3) collected over the work hours (A) and PAH levels in dermal wipes (μg/wipe) collected before and after work (B)

From: Short-term markers of DNA damage among roofers who work with hot asphalt

A. Airborne exposure measurements (n = 40)
 Naphthalene (ng/m3, XAD) 361.4 (2.9)
 Pyrene (ng/m3, XAD) 2.3 (7.5)
 Naphthalene (ng/m3, FLT) 0.78 (2.7)
 Benzo(e)pyrene (ng/m3, FLT) 3.5 (8.9)
B. Dermal exposure measurements collected before (n = 40) and after the work shift (n = 39)
 PAH (μg/wipe) Before After
 Naphthalene 0.32 (1.3) 0.32 (1.3)
 Pyrene 0.15 (1.5) 0.35 (2.4)*
  1. FLT PAHs in particulate phase from filters, XAD PAHs in gaseous phase from XAD adsorbent tubes
  2. * p < 0.0001 when compared to before work levels