Air Quality
Excellent
No health implications.
10
PM2.5
33
PM10
63
O3
0.5
CO
7
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Jul
54
Good
Sun
20 Jul
61
Good
Mon
21 Jul
58
Good
Tue
22 Jul
55
Good
Wed
23 Jul
53
Good
Thu
24 Jul
54
Good
Fri
25 Jul
34
Excellent
Air quality in the last 12 months (Songpan)
|
2025/06
|
31
|
31
|
38
|
35
|
39
|
48
|
43
|
39
|
34
|
32
|
33
|
40
|
40
|
44
|
43
|
42
|
47
|
27
|
27
|
36
|
35
|
24
|
26
|
20
|
27
|
32
|
35
|
39
|
32
|
22
|
|
|
2025/05
|
46
|
54
|
68
|
61
|
33
|
44
|
43
|
43
|
90
|
72
|
54
|
54
|
43
|
49
|
37
|
60
|
64
|
71
|
62
|
50
|
52
|
54
|
61
|
50
|
43
|
49
|
28
|
29
|
35
|
36
|
39
|
|
2025/04
|
55
|
66
|
66
|
64
|
63
|
48
|
47
|
59
|
63
|
58
|
41
|
143
|
120
|
68
|
67
|
69
|
57
|
84
|
77
|
57
|
60
|
66
|
53
|
39
|
38
|
28
|
32
|
45
|
34
|
43
|
|
|
2025/03
|
47
|
58
|
48
|
37
|
33
|
42
|
59
|
55
|
32
|
42
|
64
|
86
|
65
|
30
|
38
|
37
|
43
|
46
|
49
|
53
|
48
|
49
|
53
|
46
|
43
|
64
|
126
|
67
|
70
|
64
|
56
|
|
2025/02
|
33
|
36
|
40
|
38
|
37
|
39
|
38
|
33
|
36
|
38
|
52
|
60
|
51
|
51
|
49
|
48
|
35
|
34
|
36
|
36
|
32
|
24
|
33
|
26
|
31
|
37
|
44
|
45
|
|||
|
2025/01
|
78
|
73
|
73
|
78
|
65
|
58
|
49
|
53
|
55
|
48
|
42
|
52
|
53
|
54
|
49
|
35
|
52
|
48
|
67
|
77
|
76
|
79
|
82
|
56
|
48
|
62
|
51
|
75
|
129
|
53
|
46
|
|
2024/12
|
69
|
72
|
64
|
48
|
47
|
42
|
41
|
22
|
23
|
34
|
45
|
40
|
39
|
47
|
56
|
65
|
74
|
68
|
54
|
46
|
51
|
38
|
48
|
52
|
56
|
57
|
67
|
64
|
58
|
57
|
62
|
|
2024/11
|
32
|
31
|
33
|
28
|
32
|
32
|
34
|
42
|
30
|
24
|
35
|
26
|
32
|
31
|
28
|
27
|
27
|
21
|
22
|
34
|
35
|
40
|
30
|
23
|
32
|
38
|
43
|
48
|
51
|
59
|
|
|
2024/10
|
25
|
30
|
29
|
25
|
32
|
39
|
40
|
35
|
31
|
28
|
28
|
23
|
28
|
34
|
32
|
32
|
24
|
35
|
20
|
18
|
28
|
34
|
39
|
39
|
33
|
22
|
33
|
39
|
38
|
30
|
29
|
|
2024/09
|
31
|
34
|
31
|
31
|
19
|
24
|
25
|
31
|
28
|
18
|
20
|
23
|
23
|
25
|
22
|
25
|
29
|
31
|
29
|
27
|
22
|
30
|
36
|
39
|
40
|
43
|
51
|
42
|
23
|
22
|
|
|
2024/08
|
33
|
37
|
22
|
20
|
25
|
29
|
23
|
22
|
39
|
48
|
40
|
36
|
37
|
43
|
25
|
30
|
31
|
28
|
36
|
38
|
36
|
40
|
38
|
32
|
36
|
27
|
32
|
30
|
25
|
25
|
32
|
|
2024/07
|
18
|
27
|
20
|
20
|
22
|
41
|
18
|
14
|
17
|
23
|
27
|
30
|
22
|
17
|
16
|
20
|
18
|
18
|
19
|
15
|
29
|
20
|
21
|
29
|
48
|
52
|
36
|
31
|
23
|
27
|
30
|
|
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