BioMed Research International / 2013 / Article / Tab 3 / Research Article
Genotoxicity of Polycyclic Aromatic Hydrocarbons and Nitro-Derived in Respirable Airborne Particulate Matter Collected from Urban Areas of Rio de Janeiro (Brazil) Table 3 Mitotic index and percentage of mitosis stages and mitotic aberrations in the root tip cells of A. cepa treated with organic extract derived at site 1.
Month µ g/mLMitotic index % P. % M. % A. % T. % T.A. % MCN % Bridge % Break % Lagging NC 0.03 ± 0.00 1.40 0.90 0.50 1.10 0.07 0.05 0.00 0.00 0.02 5 0.04 ± 0.01 3.20* 0.80 0.60 0.30 0.12 0.02 0.02 0.00 0.08 August 10 0.02 ± 0.00* 0.20* 1.00 0.40 1.00 0.35 0.20 0.10 0.00 0.05 15 0.01 ± 0.01* 0.03* 0.30 0.10 0.20* 0.55 0.55 0.00 0.00 0.00 20 0.01 ± 0.01* 0.02* 0.10* 0.03* 0.20* 0.05 0.03 0.00 0.02 0.00 25 0.00 ± 0.00* 0.00* 0.00* 0.00* 0.00* 0.00 0.00 0.00 0.00 0.00 NC 0.02 ± 0.01 0.80 0.60 0.20 0.50 0.15 0.00 0.05 0.05 0.05 5 0.04 ± 0.02 1.10 1.30 0.80 0.50 0.54 0.04 0.20 0.08 0.22 September 10 0.07 ± 0.03 2.00 2.50* 1.50* 1.50 1.30* 0.10 0.40 0.40 0.40 15 0.01 ± 0.01 0.50 0.30 0.30 1.30 0.60 0.40 0.05 0.05 0.10 20 0.06 ± 0.05 2.00 2.00 1.00 1.40 1.08* 0.06 0.33 0.26 0.43 25 0.01 ± 0.01 0.50 0.50 0.10 0.30 0.28 0.03 0.06 0.16 0.03 NC 0.02 ± 0.00 1.40 0.40 0.00 0.00 0.10 0.08 0.00 0.02 0.00 5 0.11 ± 0.05 7.00 0.70 0.40 2.60 0.10 0.00 0.00 0.07 0.03 October 10 0.05 ± 0.05 2.70 0.70 0.50 1.60 0.18 0.00 0.03 0.10 0.05 15 0.06 ± 0.04 2.60 1.30 0.30 2.30 0.29* 0.07 0.05 0.12* 0.05 20 0.05 ± 0.03 2.50 1.10 0.40 0.80 0.10 0.00 0.02 0.03 0.05 25 0.06 ± 0.03 3.20 1.00 0.50 1.00 0.31 0.03 0.00 0.18 0.10
P.: prophase; M.: metaphase; A.: anaphase; T.: telophase; T.A.: total abnormalities; MCN.: micronucleus; NC.: negative control—DMSO; positive control = benzo(a)pyrene 10 µ g/mL (mitotic index = 0.00*; % T.A. = 0.20; % MCN = 0.16; % bridge = 0.04) *
≤ 0.05.