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Table 2 The mean (range) (ng.m- 3) concentration at the workplaces and the corresponding nearest ambient air measurements of PAHs, and the derived total [B(a)P]eq and cancer risk estimates.

From: Integrated exposure assessment of sewage workers to genotoxicants: an urinary biomarker approach and oxidative stress evaluation

PAHs Sewage workplace (n = 26) Office workplace (n = 26) Traffic (n = 23) Urban (n = 23)
Benzo(a)pyrene 6 (0.5-62.1) 0.4 (0.2-2.4) 0.7 (0.1-1.6) 0.5 (0.2-5.8)
Anthracene 6.7 (0.5-32.1) 0.9 (0.1-1.8) 3.2 (0.3-14.5) 0.2 (0.02-0.8)
Benz(a)anthracene 4.6 (0.3-31.8) 0.5 (0.2-2.4) 0.5(0.2-1.2) 0.2 (0.02-0.6)
Benzo(b)fluoranthene 4.3 (0.5-30.1) 0.4 (0.1-2.4) 0.6 (0.2-1.6) 0.3 (0.05-1.1)
Benzo(g,h,i)perylene 4.4 (0.4-24) 0.5 (0.1-3.8) 0.8 (0.2-1.7) 0.3 (0.06-1)
Benzo(k)fluornathene 2.0 (0.2-15.2) 0.2 (0.08-1.2) 0.2 (0.07-0.6) 0.2 (0.01-2.5)
Chrysene 7.7 (1-30) 2.2 (1.1-6.8) 0.7 (0.3-0.2) 0.3 (0.1-0.8)
Dibenz(a,h)anthracene 0.9 (0.01-5.4) 0.1 (0.01-0.5) 0.02 (0.01-0.06) 0.02 (0.01-0.06)
Fluoranthene 23.7 (2.4-104.6) 4.3 (2.5-8.1) 3.8 (2-5) 1.6 (0.8-4.3)
Indeno(1,2,3-cd)pyrene 3 (0.3-15.9) 0.3 (0.08-2.4) 0.4 (0.07-1) 0.2 (0.02-0.7)
Phenanthrene 71.2 (12.5-220) 22.3 (9-43.9) 11.9 (5.2-18.1) 5.2 (2.3-14.2)
Pyrene 19.3 (2.3-78.4) 5.5 (1.2-21.7) 4.8 (2.8-6.3) 1.3 (0.6-3.4)
Benzo(j)fluoranthene 3.9 (0.3-21.6) 0.4 (0.1-3.3) 0.4 (0.03-1.2) 0.2 (0.03-0.8)
Total [B(a)P]eq (ng m-3) 13.66 1.15 1.08 0.73
B(a)P equivalent lifetime cancer risk 15.02 × 10-6 1.26 × 10-6 1.19 × 10-6 0.80 × 10-6
  1. a. B(a)P TEFs according to Nisbet and LaGoy (1992), for benzo(j)fluoranthene Collins et al. (1998) value was applied.
  2. b. The U.S. EPA inhalation unit cancer risk of B(a)P = 1.1 × 10-6 (ng/m3)-1 was used (U.S. EPA 2009).
  3. Total [B(a)p]eq, total benzo(a)pyrene equivalent concentration.