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Table 2 Survey results

From: Revitalizing subterranean spaces: a comprehensive study on enhancing air quality in underground shopping malls for sustainable urban living

 

Very low

Low

Normal

High

Very high

Total Score

(Score)

    

(Highest = 5)

Interest in indoor air quality

 Korean (n = 30)

0.00

0.13

0.80

2.53

0.16

3.63

 Foreigner (n = 30)

0.03

0.20

0.80

1.87

0.67

3.57

 Merchant (n = 101)

0.02

0.08

0.77

2.18

0.70

3.75

Sensitivity to hazardous substances

 Korean (n = 30)

0.00

0.13

0.60

2.93

0.00

3.67

 Foreigner (n = 30)

0.03

0.53

0.40

1.73

0.67

3.36

 Merchant (n = 101)

0.00

0.06

0.92

2.30

0.45

3.72

Indoor air quality level

 Korean (n = 30)

0.00

1.20

0.80

0.53

0.00

2.53

 Foreigner (n = 30)

0.03

0.20

1.70

1.07

0.17

3.17

 Merchant (n = 101)

0.03

0.71

1.10

0.99

0.00

2.83

Indoor air quality evaluation

 Korean (n = 30)

0.23

1.40

0.20

0.00

0.00

1.83

 Foreigner (n = 30)

0.13

1.27

0.70

0.00

0.00

2.10

 Merchant (n = 101)

0.11

0.73

1.43

0.20

0.00

2.47