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Table 2 Correlation coefficients (and corresponding significance level) between the average micronucleus frequency of the sampling stations and the corresponding environmental and health data.

From: Genotoxic potential generated by biomass burning in the Brazilian Legal Amazon by Tradescantia micronucleus bioassay: a toxicity assessment study

Spearman's Correlation MCN a PM2.5 (μg/m3) Rainfall (mm/d) Temperature (°C) Humidity (%) RD-C b
MCN a 1.000 .818** -.636* -.030 -.297 .721*
  . .004 .048 .934 .405 .019
PM 2.5 (μg/m 3 )   1.000 -.806** .176 -.612 .467
   . .005 .627 .060 .174
Rainfall (mm/d)    1.000 -.418 .806** -.152
    . .229 .005 .676
Temperature (°C)     1.000 -.806** -.467
     . .005 .174
Humidity (%)      1.000 .236
      . .511
RD-C b       1.000
       .
  1. a = average micronuclei frequency under active exposure. b = adjusted rate of hospital morbidity from respiratory diseases in children (Chapter X/ICD-10). * Correlation is significant at the 0.05 level (2-tailed). ** Correlation is significant at the 0.01 level (2-tailed). Data obtained in the dry and rainy period.