Pollutant

Site*

Mean

Standard deviation

Maximum

Minimum

Benzene

1

1.32

1.01

5.40

0.08

2

0.74

0.36

1.73

0.35

3

0.84

0.25

1.45

0.51

Ethylbenzene

1

1.33

1.04

5.31

0.00

2

1.05

1.05

4.14

0.34

3

4.74

2.68

8.86

2.38

Toluene

1

3.69

3.73

18.07

0.05

2

2.22

1.39

5.92

0.12

3

1.17

0.93

3.04

0.05

mp-Xylene

1

3.18

3.34

17.78

0.00

2

1.74

0.99

4.26

0.05

3

5.33

4.12

9.82

0.10

o-Xylene

1

1.15

1.70

11.38

0.01

2

0.55

0.25

1.32

0.20

3

1.02

0.55

1.80

0.30

CO**

1

0.54

0.43

1.92

0.25

2

0.37

0.14

0.74

0.22

3

0.43

0.14

0.76

0.24

NO

1

32.06

49.78

207.80

0.00

2

18.09

30.81

126.30

0.09

3

3.77

2.90

10.81

0.00

NO₂

1

41.23

26.41

92.75

10.44

2

40.45

23.28

87.80

12.31

3

23.30

8.33

34.68

4.12

NO_x

1

47.23

52.13

214.80

5.40

2

35.65

28.63

122.10

8.03

3

15.21

6.35

25.73

2.07

O₃

1

54.34

49.06

121.66

1.63

2

55.12

49.23

123.56

0.38

3

28.42

10.62

47.07

5.77

SO₂

1

1.28

1.06

5.07

0.00

2

2.86

1.52

6.45

0.86

3

2.34

2.15

11.30

0.81

PM₁₀

1

58.49

27.10

164.06

29.36

2

29.12

10.41

46.00

15.00

3

16.17

3.49

22.00

10.00

PM_2.5

1

18.28

3.68

29.26

12.08