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Table 13 Kruskal–Wallis test and Post Hoc Tukey test results

From: The impact of heating systems scenarios on air pollution at selected residential zone: a case study using AERMOD dispersion model

Pollutant

Averaging period

Statistic

df

Kruskal–Wallis Test

p value

Post hoc comparisons (Tukey Test) p value

S1 vs S2

S1 vs S3

S2 vs S3

CO

8-h

238.95

2

 < 0.001

 < 0.001

0.016

 < 0.001

24-h

132.60

2

 < 0.001

 < 0.001

0.823

 < 0.001

Heating season average

212.11

2

 < 0.001

 < 0.001

 < 0.001

 < 0.001

NO2

1-h

469.87

2

 < 0.001

 < 0.001

 < 0.001

0.955

24-h

497.88

2

 < 0.001

 < 0.001

 < 0.001

0.759

Heating Season Average

327.11

2

 < 0.001

 < 0.001

 < 0.001

 < 0.001

  1. The heating scenarios are marked with an abbreviation “S” in the table