|
Variable
|
N
|
Mean (± SD#)
|
Min.
|
25%
|
Median
|
75%
|
Max.
|
IQR††
|
IQR†† 5-day average
|
|---|
|
UFP* [n/cm
3
]
|
196
|
12602 (± 6455)
|
2542
|
7326
|
11444
|
17332
|
34294
|
10005
|
6821
|
|
AP* [n/cm
3
]
|
167
|
1593 (± 1034)
|
328
|
821
|
1238
|
2120
|
4908
|
1299
|
1127
|
|
PM
2.5
*[μg/m
3
]
|
197
|
20.0 (± 15.0)
|
2.6
|
9.7
|
14.9
|
26.1
|
83.7
|
16.4
|
12.2
|
|
PM
10
*[μg/m
3
]
|
154
|
20.0 (± 13.0)
|
5.4
|
10.8
|
15.6
|
26.0
|
74.5
|
15.2
|
12.8
|
|
NO
†
[μg/m
3
]
|
196
|
24.4 (± 27.7)
|
4.0
|
6.8
|
12.3
|
30.3
|
137.6
|
23.5
|
21.0
|
|
Air temperature
‡
[°C]
|
198
|
4.1 (± 4.8)
|
-10.4
|
0.5
|
4.4
|
7.9
|
13.2
|
7.4
|
5.9
|
|
Barometric pressure [hPa]
|
198
|
973.4 (± 9.7)
|
949.5
|
966.3
|
972.9
|
980.0
|
995.7
|
13.6
|
10.8
|
|
Relative humidity
§
[%]
|
198
|
83.5 (± 8.8)
|
55.8
|
78.9
|
84.3
|
88.8
|
100.0
|
10.0
|
9.1
|
- * UFP, ultrafine particles, number concentration of particles with a size range of 0.01 to 0.1 μm in diameter
- 13% of the hourly measurements were imputed,
- AP, Accumulation mode particles, particles with a size range of 0.1 to 1.0 μm,
- PM2.5, mass concentration of particles less than 2.5 μm in diameter
- 15% of the hourly measurements were imputed
- PM10, mass concentration of particles less than 10 μm in diameter
- † NO, Nitrogen monoxide;
- ‡ Temperature: 0.5% of the hourly measurements were imputed
-
§Relative humidity: 0.5% of the hourly measurements were imputed
- # SD, standard deviation
- †† IQR, inter quartile range
