Air Quality
Excellent
No health implications.
9
PM2.5
13
PM10
39
O3
0.8
CO
4
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Jan
78
Good
Fri
30 Jan
43
Excellent
Sat
31 Jan
52
Good
Sun
1 Feb
58
Good
Mon
2 Feb
62
Good
Tue
3 Feb
68
Good
Wed
4 Feb
34
Excellent
Air quality in the last 12 months (Songtao)
|
2025/12
|
53
|
79
|
68
|
53
|
54
|
49
|
54
|
54
|
57
|
69
|
61
|
138
|
31
|
38
|
46
|
54
|
56
|
60
|
64
|
63
|
37
|
47
|
26
|
44
|
52
|
53
|
54
|
57
|
72
|
83
|
57
|
|
2025/11
|
24
|
22
|
17
|
17
|
21
|
14
|
15
|
11
|
11
|
19
|
31
|
30
|
32
|
34
|
37
|
38
|
42
|
19
|
23
|
28
|
27
|
33
|
38
|
31
|
43
|
42
|
42
|
46
|
45
|
47
|
|
|
2025/10
|
23
|
21
|
23
|
23
|
27
|
24
|
24
|
28
|
26
|
27
|
26
|
38
|
26
|
13
|
19
|
14
|
16
|
11
|
10
|
10
|
11
|
23
|
27
|
31
|
44
|
35
|
23
|
27
|
37
|
33
|
27
|
|
2025/09
|
21
|
19
|
22
|
20
|
20
|
29
|
23
|
26
|
18
|
19
|
27
|
29
|
26
|
26
|
23
|
22
|
24
|
22
|
16
|
12
|
21
|
21
|
16
|
18
|
19
|
15
|
20
|
23
|
26
|
20
|
|
|
2025/08
|
23
|
21
|
23
|
24
|
25
|
21
|
17
|
13
|
18
|
19
|
21
|
15
|
21
|
20
|
16
|
18
|
18
|
23
|
20
|
17
|
14
|
22
|
21
|
20
|
18
|
19
|
18
|
19
|
25
|
24
|
22
|
|
2025/07
|
19
|
17
|
18
|
16
|
18
|
20
|
20
|
24
|
28
|
23
|
26
|
27
|
27
|
21
|
19
|
17
|
20
|
22
|
27
|
25
|
15
|
13
|
14
|
16
|
15
|
20
|
24
|
19
|
23
|
18
|
20
|
|
2025/06
|
16
|
22
|
26
|
25
|
28
|
33
|
28
|
26
|
28
|
29
|
28
|
24
|
22
|
19
|
23
|
26
|
19
|
14
|
16
|
20
|
16
|
19
|
18
|
25
|
20
|
17
|
19
|
19
|
22
|
23
|
|
|
2025/05
|
35
|
49
|
44
|
39
|
29
|
34
|
50
|
28
|
20
|
21
|
26
|
30
|
33
|
48
|
38
|
24
|
36
|
36
|
38
|
37
|
27
|
27
|
32
|
46
|
38
|
26
|
20
|
13
|
20
|
23
|
24
|
|
2025/04
|
33
|
42
|
47
|
55
|
55
|
54
|
53
|
57
|
49
|
44
|
46
|
39
|
111
|
80
|
65
|
59
|
56
|
53
|
29
|
32
|
33
|
33
|
37
|
26
|
33
|
31
|
22
|
26
|
37
|
18
|
|
|
2025/03
|
41
|
37
|
15
|
21
|
23
|
23
|
27
|
25
|
32
|
40
|
41
|
45
|
56
|
28
|
14
|
30
|
40
|
27
|
30
|
29
|
36
|
46
|
43
|
44
|
48
|
58
|
69
|
66
|
46
|
31
|
35
|
|
2025/02
|
28
|
18
|
37
|
38
|
52
|
52
|
43
|
72
|
46
|
44
|
42
|
60
|
60
|
34
|
36
|
40
|
29
|
27
|
30
|
37
|
83
|
31
|
45
|
79
|
46
|
33
|
34
|
36
|
|||
|
2025/01
|
94
|
103
|
102
|
120
|
90
|
65
|
54
|
50
|
41
|
49
|
59
|
60
|
61
|
63
|
69
|
65
|
72
|
85
|
77
|
82
|
98
|
125
|
139
|
99
|
17
|
24
|
38
|
69
|
130
|
83
|
46
|
|
1
|
2
|
3
|
4
|
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