Table 7 Basic situation of air pollution index in Anshun City from 2018 to 2022.

From: The influence of meteorological factors and air pollution on acute cardiovascular and cerebrovascular events in Western Guizhou

 

Minimum value

P5

P25

M

P75

P95

Maximum value

Average

AQI

8.7

16.0

23.7

34.4

49.4

76.4

143.1

38.6

PM25(µg/m³)

1.9

6.8

13.1

21.3

33.1

54.4

108.0

24.8

PM10(µg/m³)

3.9

9.6

17.2

27.8

43.3

73.3

151.2

32.9

SO2(µg/m³)

2.2

4.4

6.7

10.5

17.9

32.4

87.6

13.6

NO2(µg/m³)

2.4

3.9

6.9

10.1

14.2

23.0

41.2

11.2

O3(µg/m³)

6.5

24.5

46.3

60.0

78.1

103.3

147.6

62.2

CO(mg/m³)

0.2

0.3

0.4

0.6

0.7

0.9

1.3

0.6

Morbidity

0.00

0.12

0.23

0.32

0.41

0.58

1.42

0.32

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