Air Quality
Excellent
No health implications.
PM2.5
PM10
O3
CO
SO2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Feb
Thu
13 Feb
Fri
14 Feb
Sat
15 Feb
Sun
16 Feb
Mon
17 Feb
Tue
18 Feb
Real-time AQI (Monitoring Station in Ya'an)
建安厂
2014
PM2.5
17
PM10
15
O3
0.4
CO
5
SO2
32
NO2
市政府
2014
PM2.5
17
PM10
30
O3
0.5
CO
6
SO2
15
NO2
川农大
1913
PM2.5
15
PM10
38
O3
0.4
CO
4
SO2
5
NO2
Air quality in the last 12 months (Ya'an)
|
2025/01
|
83
|
80
|
83
|
146
|
78
|
104
|
71
|
46
|
41
|
62
|
30
|
68
|
68
|
64
|
68
|
63
|
77
|
37
|
49
|
79
|
112
|
125
|
158
|
70
|
30
|
41
|
72
|
43
|
100
|
99
|
53
|
|
2024/12
|
69
|
67
|
88
|
79
|
42
|
72
|
56
|
28
|
22
|
33
|
40
|
57
|
43
|
33
|
38
|
56
|
93
|
81
|
164
|
133
|
85
|
37
|
36
|
35
|
48
|
42
|
87
|
62
|
81
|
36
|
38
|
|
2024/11
|
14
|
29
|
33
|
16
|
22
|
52
|
55
|
74
|
66
|
13
|
25
|
25
|
25
|
30
|
44
|
21
|
19
|
20
|
17
|
25
|
34
|
63
|
52
|
32
|
13
|
38
|
32
|
31
|
38
|
61
|
|
|
2024/10
|
18
|
28
|
26
|
27
|
27
|
30
|
35
|
47
|
46
|
17
|
24
|
23
|
41
|
46
|
50
|
44
|
21
|
40
|
19
|
23
|
22
|
18
|
32
|
55
|
40
|
19
|
17
|
26
|
49
|
40
|
35
|
|
2024/09
|
21
|
20
|
22
|
25
|
15
|
23
|
20
|
34
|
22
|
14
|
28
|
33
|
29
|
30
|
27
|
15
|
29
|
34
|
37
|
39
|
22
|
27
|
32
|
35
|
31
|
39
|
54
|
68
|
54
|
11
|
|
|
2024/08
|
38
|
42
|
30
|
16
|
25
|
27
|
41
|
35
|
25
|
22
|
50
|
37
|
37
|
46
|
41
|
21
|
33
|
30
|
35
|
46
|
51
|
55
|
58
|
47
|
44
|
40
|
39
|
45
|
51
|
43
|
41
|
|
2024/07
|
15
|
21
|
24
|
34
|
22
|
22
|
36
|
14
|
8
|
13
|
19
|
26
|
26
|
13
|
25
|
18
|
20
|
17
|
37
|
18
|
19
|
24
|
23
|
13
|
18
|
36
|
39
|
23
|
18
|
16
|
26
|
|
2024/06
|
50
|
19
|
26
|
24
|
35
|
38
|
19
|
25
|
17
|
28
|
25
|
42
|
34
|
35
|
37
|
45
|
13
|
26
|
21
|
37
|
21
|
14
|
28
|
23
|
30
|
32
|
21
|
25
|
25
|
33
|
|
|
2024/05
|
27
|
22
|
21
|
15
|
32
|
36
|
39
|
28
|
28
|
55
|
29
|
36
|
38
|
49
|
52
|
54
|
38
|
38
|
32
|
34
|
32
|
40
|
50
|
49
|
54
|
36
|
35
|
31
|
12
|
19
|
41
|
|
2024/04
|
57
|
53
|
48
|
39
|
34
|
19
|
19
|
15
|
29
|
28
|
24
|
42
|
53
|
56
|
63
|
51
|
29
|
19
|
23
|
40
|
55
|
60
|
23
|
25
|
40
|
52
|
64
|
74
|
45
|
12
|
|
|
2024/03
|
34
|
26
|
58
|
115
|
51
|
46
|
56
|
64
|
104
|
101
|
29
|
54
|
43
|
22
|
55
|
52
|
82
|
55
|
55
|
63
|
64
|
70
|
68
|
57
|
19
|
31
|
37
|
18
|
32
|
43
|
45
|
|
2024/02
|
71
|
61
|
28
|
38
|
49
|
48
|
54
|
57
|
49
|
103
|
94
|
90
|
81
|
99
|
35
|
35
|
50
|
70
|
91
|
185
|
67
|
53
|
41
|
51
|
77
|
103
|
105
|
79
|
42
|
||
|
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
*: primary pollution