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
13 May
Wed
14 May
Thu
15 May
Fri
16 May
Sat
17 May
Sun
18 May
Mon
19 May
Real-time AQI (Monitoring Station in Ya'an)
川农大
2817
PM2.5
28
PM10
87
O3
0.5
CO
7
SO2
31
NO2
康养中心(对照点)
5327
PM2.5
31
PM10
162 *
O3
0.0
CO
1
SO2
2
NO2
Air quality in the last 12 months (Ya'an)
|
2025/02
|
28
|
27
|
36
|
47
|
41
|
32
|
25
|
26
|
32
|
37
|
47
|
37
|
49
|
56
|
40
|
63
|
62
|
54
|
22
|
43
|
40
|
20
|
32
|
35
|
14
|
27
|
92
|
47
|
|||
|
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
|
|
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