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Table 2 Concentration of contaminant groups in the extracts from PM2.5 (ng/m3)

From: Global gene expression changes in human embryonic lung fibroblasts induced by organic extracts from respirable air particles

Contaminant classes Contaminant groups Ostrava-Bartovice Ostrava-Poruba Karvina Trebon
Polycyclic aromatic compounds U.S. EPA PAHs (10)* 76.3 13.6 17.1 5.89
  other PAHs (29) 44.3 7.14 9.29 3.28
  alkylated PAHs (46) 29.7 7.36 5.88 4.98
  oxidized PAHs (7) 36.1 11.0 12.8 2.02
  N-heterocyclic PAHs (PANHs) (13) 19.9 4.27 3.13 0.46
  S-heterocyclic PAHs (PASHs) (8) 9.99 2.27 1.80 0.42
  nitrated PAHs (15) 0.38 0.05 0.04 0.02
  dinitrated PAHs (3) 0.00097 0.00008 0.00005 0.00005
Hydrocarbon markers n-alkanes (29) 84.4 89.5 77.4 89.2
  UCM (unresolved complex mixture) ** 20.1 15.3 9.19 12.7
  terpanes (15) 14.8 9.34 5.64 4.14
  triterpanes (13) 4.49 3.16 1.49 3.73
  steranes (19) 2.24 2.68 0.85 1.76
Sterols faecal sterols (8) 0.38 0.12 0.17 0.88
  phytosterols (5) 1.04 0.20 0.59 1.63
Industrial contaminants musk compounds (9) 0.01 0.003 0.003 0.06
  dialkyl-phthalates (6) 0.75 0.60 0.34 2.08
  bisphenol A 0.18 0.09 0.10 0.09
  benzophenone 0.24 0.05 0.04 0.04
  isomyristate 0.19 0.10 0.07 0.46
  1. * the numbers of quantified compounds are in parentheses
  2. ** mixture of thousands cyclic and branched saturated hydrocarbons forming a characteristic hump on the GC chromatogram of the fraction of non-polar compounds of air particulate matter