Air Quality
Excellent
No health implications.
9
PM2.5
20
PM10
71
O3
0.3
CO
7
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Feb
90
Good
Sat
15 Feb
89
Good
Sun
16 Feb
53
Good
Mon
17 Feb
60
Good
Tue
18 Feb
60
Good
Wed
19 Feb
22
Excellent
Thu
20 Feb
44
Excellent
Air quality in the last 12 months (Tiefeng)
|
2025/01
|
99
|
42
|
44
|
118
|
125
|
69
|
25
|
32
|
28
|
31
|
61
|
164
|
235
|
67
|
29
|
33
|
87
|
187
|
188
|
135
|
88
|
69
|
207
|
271
|
218
|
203
|
27
|
36
|
52
|
26
|
27
|
|
2024/12
|
37
|
17
|
22
|
20
|
23
|
17
|
24
|
34
|
79
|
42
|
23
|
36
|
49
|
30
|
22
|
26
|
27
|
28
|
33
|
50
|
29
|
27
|
23
|
41
|
40
|
27
|
22
|
27
|
51
|
116
|
115
|
|
2024/11
|
48
|
57
|
39
|
31
|
30
|
71
|
78
|
181
|
167
|
118
|
129
|
47
|
118
|
193
|
105
|
45
|
26
|
26
|
45
|
45
|
22
|
32
|
64
|
185
|
142
|
47
|
24
|
38
|
22
|
27
|
|
|
2024/10
|
21
|
24
|
33
|
37
|
40
|
44
|
69
|
33
|
52
|
24
|
26
|
24
|
47
|
54
|
20
|
35
|
29
|
37
|
25
|
47
|
35
|
37
|
43
|
53
|
46
|
101
|
47
|
39
|
57
|
45
|
55
|
|
2024/09
|
16
|
21
|
27
|
26
|
22
|
26
|
33
|
34
|
41
|
26
|
24
|
30
|
21
|
29
|
33
|
27
|
25
|
27
|
19
|
26
|
31
|
29
|
33
|
34
|
30
|
39
|
30
|
29
|
49
|
23
|
|
|
2024/08
|
25
|
26
|
26
|
21
|
18
|
29
|
33
|
25
|
37
|
35
|
18
|
21
|
24
|
31
|
31
|
30
|
31
|
26
|
22
|
24
|
21
|
27
|
33
|
27
|
31
|
17
|
18
|
23
|
26
|
18
|
18
|
|
2024/07
|
36
|
48
|
57
|
64
|
60
|
50
|
61
|
78
|
69
|
70
|
83
|
86
|
93
|
65
|
57
|
51
|
21
|
38
|
30
|
35
|
26
|
30
|
26
|
26
|
30
|
23
|
12
|
21
|
21
|
27
|
26
|
|
2024/06
|
30
|
32
|
41
|
21
|
40
|
50
|
31
|
19
|
19
|
31
|
25
|
24
|
27
|
15
|
22
|
33
|
21
|
26
|
32
|
23
|
20
|
20
|
24
|
25
|
30
|
39
|
44
|
52
|
26
|
41
|
|
|
2024/05
|
56
|
38
|
51
|
78
|
39
|
42
|
41
|
74
|
33
|
36
|
13
|
32
|
32
|
22
|
18
|
26
|
43
|
28
|
37
|
36
|
43
|
31
|
22
|
27
|
42
|
23
|
30
|
24
|
28
|
21
|
22
|
|
2024/04
|
35
|
79
|
51
|
40
|
68
|
35
|
50
|
33
|
60
|
68
|
86
|
91
|
88
|
125
|
183
|
44
|
53
|
43
|
28
|
76
|
157
|
69
|
31
|
33
|
29
|
24
|
23
|
19
|
33
|
29
|
|
|
2024/03
|
26
|
29
|
27
|
28
|
24
|
29
|
29
|
23
|
33
|
50
|
29
|
42
|
34
|
53
|
42
|
78
|
20
|
25
|
36
|
25
|
29
|
55
|
72
|
28
|
48
|
69
|
79
|
147
|
24
|
25
|
29
|
|
2024/02
|
32
|
42
|
46
|
37
|
69
|
110
|
52
|
33
|
92
|
136
|
46
|
69
|
53
|
33
|
26
|
64
|
90
|
52
|
25
|
23
|
24
|
29
|
35
|
112
|
71
|
31
|
48
|
44
|
45
|
||
|
1
|
2
|
3
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4
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5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
- Excellent
- Good
- Lightly
- Moderately
- Heavily
- Severely
Air quality source: CNEMC
*: primary pollution