Table 3 The changes in particulate matter and its components under different SSPs

From: Sustainable development reduces particulate matter emissions and mitigates aging’s cognitive impact

Pollutant

SSPs

2015 Average Concentration

2030

2050

Average Concentration

Relative Change Rate

Average Concentration

Relative Change Rate

PM1

SSP1

27.06

21.20

−21.64%

12.36

−54.31%

SSP2

26.94

−0.44%

23.21

−14.23%

SSP3

35.17

+29.97%

34.90

+28.97%

PM2.5

SSP1

48.33

27.66

−42.77%

17.52

−63.75%

SSP2

31.09

−35.67%

28.75

−40.51%

SSP3

40.97

−15.23%

39.98

−17.28%

PM10

SSP1

82.27

71.75

−12.79%

50.89

−38.14%

SSP2

63.22

−23.15%

68.79

−16.38%

SSP3

101.92

+23.89%

101.21

+23.02%

black carbon

SSP1

2.28

1.71

−25.00%

0.73

−67.98%

SSP2

2.64

+15.79%

1.87

−17.98%

SSP3

4.52

+98.25%

4.34

+90.35%

ammonium

SSP1

7.34

3.71

−49.46%

1.57

−78.61%

SSP2

5.15

−29.84%

3.61

−50.82%

SSP3

5.23

−28.75%

5.12

−30.25%

organic matter

SSP1

11.59

7.69

−33.65%

5.51

−52.46%

SSP2

10.72

−7.51%

8.56

−26.14%

SSP3

16.03

+38.31%

16.45

+41.93%

nitrate

SSP1

9.20

2.64

−71.30%

0.79

−91.41%

SSP2

5.36

−41.74%

3.93

−57.28%

SSP3

7.77

−15.54%

7.82

−15.00%

sulfate

SSP1

10.57

7.36

−30.37%

3.72

−64.81%

SSP2

9.21

−12.87%

6.58

−37.75%

SSP3

10.28

−2.74%

9.74

−7.85%

  1. All pollutants are in µg/m3.