Table 1 PM2.5 mass and chemical component concentrations in Seoul, Korea (January 2016 through December 2019) SD:,standard deviation, IQR: interquartile range; OC: organic carbon; EC, elementary carbon.

From: Effects of PM2.5 and particle constituents on overall, cardiovascular, and respiratory mortality in Seoul

 

Mass of components

Mean ± SD

Minimum-maximum

IQR

PM2.5 (µg/m3)

26.02 ± 16.32

1.07–142.0

17.77

Ions (µg/m3)

SO42−

4.02 ± 3.34

0–27.48

3.83

NO3−

5.03 ± 5.66

0–51.91

5.79

CI−

0.28 ± 0.31

0–2.57

0.35

Na+

0.07 ± 0.09

0–0.62

0.10

NH4+

3.09 ± 2.81

0–25.19

3.00

K+

0.12 ± 0.13

0–1.05

0.15

Mg2+

0.01 ± 0.02

0–0.21

0.004

Ca2+

0.06 ± 0.08

0–0.58

0.09

Carbon

OC

3.58 ± 1.91

0.20–12.55

2.40

EC

1.06 ± 0.58

0.03–4.04

0.70

Metal (ng/m3)

S

2711.71 ± 2057.66

45.74–16032.50

2325.72

K

239.65 ± 195.24

7.68–2287.96

212.04

Ca

68.78 ± 75.72

0–1104.97

48.08

Ti

10.63 ± 0.08

0.08–137.87

7.08

V

3.30 ± 4.25

0–31.60

4.20

Cr

1.26 ± 0.90

0–7.19

1.05

Mn

11.05 ± 7.84

0.03–56.10

8.71

Fe

199.73 ± 129.29

9.64–1642.18

125.33

Ni

1.26 ± 1.39

0–10.14

1.47

Cu

7.90 ± 4.89

0.33–29.21

6.23

Zn

53.33 ± 34.88

0.84–258.70

41.00

As

3.79 ± 3.45

0–45.23

3.63

Se

1.06 ± 1.06

0–6.42

1.15

Br

7.38 ± 5.88

0.02–63.13

6.22

Pb

18.28 ± 12.23

0.03–89.32

15.51

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