Recognizing Dew as an Indicator and an Improver of Near-Surface Air Quality
Table 3
Summary of total dissolved solids (TDS), PM2.5, and PM10 of dew, as well as total suspended particulates (TSP), PM2.5, and PM10 of air particles under normal (n = 17), fog (n = 7), and haze (n = 13) conditions in Changchun during the study period.
Dew (mg/L)
Air (µg/m3)
Normal (n = 17)
Fog (n = 7)
Haze (n = 13)
Normal (n = 17)
Fog (n = 7)
Haze (n = 13)
TDS
PM2.5
PM10
TDS
PM2.5
PM10
TDS
PM2.5
PM10
TSP
PM2.5
PM10
TSP
PM2.5
PM10
TSP
PM2.5
PM10
Mean ± SD
175 ± 31.54
24.39 ± 8.57
49.65 ± 12.86
95.28 ± 26.12
12.26 ± 5.32
31.65 ± 5.28
281.36 ± 29.86
61.22 ± 19.59
89.24 ± 29.19
165.24 ± 25.35
40.22 ± 8.25
72.34 ± 9.48
110.25 ± 20.24
29.85 ± 4.75
49.25 ± 7.42
458.67 ± 32.54
172.36 ± 21.26
205.31 ± 25.47
Max.
249.12
53.25
82.50
157.12
35.18
56.34
332.28
93.00
159.13
193.21
54.23
92.78
170.23
39.54
70.21
523.42
200.52
296.25
Min.
128.90
9.80
23.31
64.58
3.80
14.41
234.14
22.50
48.25
89.62
21.32
52.31
69.25
17.52
34.21
365.24
142.31
124.25
Note. PM2.5: particulate matter < 2.5 µm in diameter; PM10: particulate matter 2.5–10 µm in diameter; SD: standard deviation.
