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Table 1 Atmospheric concentrations and mutagenicity of TSP and their chemical constituents

From: Long-range transport of mutagens and other air pollutants from mainland East Asia to western Japan

  Summer Autumn Winter Spring
TSP (μg/m3) 22.1 ± 12.0 29.3 ± 8.0 22.6 ± 14.3 48.4 ± 37.4
Fe (ng/m3) 76.7 ± 66.4 145.7 ± 130.8 126.8 ± 130.5 709.4 ± 844.0
Pb (ng/m3) 8.2 ± 13.9 7.3 ± 4.8 9.7 ± 8.5 15.9 ± 15.2
SO4 2− (μg/m3) 5.03 ± 5.50 4.78 ± 2.28 4.36 ± 3.47 7.38 ± 4.88
NO3 (μg/m3) 0.45 ± 0.22 1.05 ± 0.91 1.39 ± 1.07 2.49 ± 2.70
Total PAHs (ng/m3) 0.21 ± 0.16 0.57 ± 0.38 1.05 ± 0.66 0.92 ± 0.73
Mutagenicity (revertant/m3)
 Without S9 mix 3.5 ± 1.6 9.7 ± 5.8 19.6 ± 13.7 12.7 ± 12.9
 With S9 mix 1.8 ± 1.3 7.2 ± 5.2 17.5 ± 13.4 13.1 ± 18.7
  1. The intervals for collecting TSP were as follows: summer (Jun.–Aug. 2012, n = 12), autumn (Sep.–Nov. 2012, n = 12),winter (Dec. 2012–Feb. 2013, n = 42), and spring (Mar.–May 2013, n = 52)
  2. Numbers indicate the mean ± standard deviation
  3. Total PAHs means the sum of the concentrations of 10 PAHs (FR, PY, CHR, BaA, BaP, BbF, BkF, DahA, IcdP, and BghiP)