Air Quality
Excellent
No health implications.
13
PM2.5
42
PM10
24
O3
0.4
CO
7
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Sep
43
Excellent
Tue
22 Sep
41
Excellent
Wed
23 Sep
40
Excellent
Thu
24 Sep
40
Excellent
Fri
25 Sep
43
Excellent
Sat
26 Sep
40
Excellent
Sun
27 Sep
21
Excellent
Air quality in the last 12 months (Songpan)
|
2026/08
|
19
|
23
|
30
|
33
|
36
|
32
|
34
|
30
|
30
|
35
|
30
|
31
|
38
|
39
|
34
|
25
|
23
|
21
|
26
|
31
|
31
|
37
|
29
|
32
|
31
|
33
|
33
|
30
|
30
|
35
|
36
|
|
2026/07
|
39
|
42
|
36
|
37
|
41
|
44
|
42
|
40
|
42
|
30
|
26
|
22
|
30
|
29
|
28
|
31
|
25
|
36
|
35
|
39
|
41
|
39
|
45
|
44
|
47
|
37
|
30
|
30
|
31
|
22
|
19
|
|
2026/06
|
48
|
45
|
44
|
52
|
47
|
50
|
36
|
34
|
35
|
39
|
34
|
36
|
38
|
44
|
43
|
39
|
36
|
34
|
37
|
29
|
23
|
27
|
26
|
24
|
22
|
30
|
30
|
36
|
36
|
35
|
|
|
2026/05
|
29
|
36
|
42
|
47
|
48
|
50
|
56
|
39
|
47
|
57
|
59
|
52
|
44
|
49
|
29
|
28
|
30
|
36
|
42
|
40
|
38
|
31
|
30
|
29
|
29
|
45
|
40
|
44
|
42
|
46
|
52
|
|
2026/04
|
45
|
44
|
61
|
65
|
57
|
49
|
32
|
26
|
44
|
39
|
35
|
42
|
46
|
44
|
40
|
43
|
43
|
47
|
123
|
94
|
34
|
44
|
57
|
58
|
57
|
57
|
41
|
31
|
38
|
37
|
|
|
2026/03
|
32
|
35
|
40
|
46
|
60
|
55
|
47
|
38
|
33
|
36
|
40
|
41
|
25
|
37
|
61
|
39
|
27
|
40
|
48
|
54
|
48
|
56
|
50
|
50
|
41
|
37
|
51
|
49
|
36
|
27
|
40
|
|
2026/02
|
68
|
66
|
61
|
58
|
65
|
64
|
54
|
45
|
34
|
57
|
56
|
56
|
67
|
61
|
64
|
41
|
65
|
50
|
50
|
45
|
43
|
50
|
68
|
60
|
52
|
56
|
48
|
33
|
|||
|
2026/01
|
56
|
47
|
32
|
49
|
52
|
53
|
58
|
61
|
66
|
70
|
74
|
80
|
90
|
69
|
66
|
65
|
67
|
72
|
52
|
48
|
49
|
53
|
52
|
54
|
84
|
143
|
114
|
93
|
67
|
55
|
64
|
|
2025/12
|
70
|
66
|
52
|
51
|
58
|
59
|
64
|
61
|
64
|
61
|
69
|
61
|
61
|
63
|
65
|
80
|
82
|
82
|
90
|
56
|
50
|
49
|
56
|
56
|
56
|
55
|
66
|
73
|
64
|
66
|
54
|
|
2025/11
|
38
|
34
|
32
|
25
|
21
|
19
|
32
|
59
|
50
|
31
|
37
|
48
|
49
|
48
|
44
|
39
|
50
|
40
|
45
|
57
|
63
|
60
|
55
|
61
|
69
|
63
|
72
|
70
|
67
|
64
|
|
|
2025/10
|
20
|
25
|
23
|
20
|
25
|
17
|
19
|
21
|
23
|
20
|
14
|
22
|
27
|
31
|
31
|
37
|
26
|
32
|
29
|
22
|
19
|
17
|
18
|
15
|
22
|
33
|
36
|
37
|
35
|
37
|
45
|
|
2025/09
|
28
|
27
|
35
|
35
|
35
|
57
|
53
|
43
|
35
|
28
|
21
|
25
|
35
|
35
|
32
|
18
|
22
|
15
|
23
|
27
|
17
|
20
|
25
|
35
|
39
|
38
|
24
|
17
|
23
|
28
|
|
|
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